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Направление Аудио и видеокомуникации и технологии

Ръководител проф. д-р инж. Огнян Бумбаров
Състав
1. проф. дтн инж. Румен Кунчев
2. проф. д-р инж. Александър Бекярски
3. проф. д-р инж. Снежана Плешкова
4. доц. д-р инж. Иво Драганов
5. гл.ас. д-р инж. Лиляна Дочева
6. гл.ас. д-р инж. Агата Манолова
7. гл.ас. инж. Румен Миронов
8. ас. д-р инж. Никoлaй Нeшoв


Учебна работа
Специалност Телекомуникации
Направлението подържа базови и теоретични дисциплини и извършва обучение за специализациите "Радиокомуникации" и "Аудио и видео системи".
1. Цифрова обработка на сигнали
2. Видео и аудио техника
3. Цифрова обработка на сигнали в комуникациите
4. Теория на кодирането
5. Аудио и видео технологии


List of Publications
(Last 5 years)

Book Chapters
1.    Boumbarov, O., Y. Velchev, K. Tonchev, I. Paliy, Face and ECG Based Multibiometrics Identification, InTech - Open Access Publisher  "Biometrics / Book 2", ISBN 978-953-307-487-0, 2011 (Accepted-In Print).
2.    Boumbarov, O., K. Tonchev, I. Paliy, J. Garcia, Age Estimation and Gender Classification of Facial Images with Kernel Methods and Subspace Learning, Chapter in WSEAS Book “New approaches in intelligent image processing”, Part 2: Applications of the intelligent image processing , June 30, 2011.
3.    Boumbarov, O., P. Petrov, S. Panev, L. Dimitrov, A Real-Time Robust Eye Tracking with Active Camera Control, Chapter in WSEAS Book “New approaches in intelligent image processing”, Part 2: Applications of the intelligent image processing , June 30, 2011.
4.    R. Kountchev. Adaptive Approach to Quality Enhancement and Storage of Signature and Fingerprint Images. Book chapter in: “Handbook on Reasoning-based Intelligent Systems”. World Scientific Publishers. Eds. K. Nakamatsu and L. Jain, 34 p., 2011 (in press).
5.    R. Kountchev, Vl. Todorov, R. Kountcheva. New method for lossless data compression based on adaptive run-length coding, Book chapter in "Advanced Computational Technologies", C. Enachescu, F. Florin, B. Iantovics (eds.). Romanian Academy Publishing House, 2011 (in press).
6.    Boumbarov, O.  P. Petrov, K. Muratovski, S. Sokolov, An application of Mean Shift and Adaptive Control to Active Face Tracking, Scientific Publishing Services - Springer, “Intelligent Systems: From Theory to Practice, Studies in Computational Intelligent 299” book, pp.161-179, 2010.
7.    K. Nakamatsu, J. Abe, S. Akama, R. Kountchev, Introduction to Intelligent Elevator Control Based on EVALPSN, KES 14th Intern. Conf. on Knowledge-based and Intelligent Information & Intelligent Systems, Part III, Lecture Notes in Computer Science, Volume 6278, R. Setchi, I. Jordanov, R. Howlett, L. Jain (Eds.), Springer-Verlag, 2010, pp. 133–142.
8.    R. Kountchev, K. Nakamatsu. Compression of multispectral images with inverse pyramid decomposition. KES 14th Intern. Conf. on Knowledge-based and Intelligent Information & Intelligent Systems, Part III, Lecture Notes in Computer Science, Volume 6278, R. Setchi, I. Jordanov, R. Howlett, L. Jain (Eds.), Springer-Verlag, 2010, pp. 215–224.
9.    V. Cherkashyn, R. Kountchev, Dong-Chen He, Image Decomposition on the basis of an Inverse Pyramid with 3-layer Neural Networks, Book chapter in: "Innovations and Advances in Computer Sciences and Engineering", T. Sobh (Ed.), Springer Netherlands, 2010, pp. 445-450.
10.    R. Kountchev, M. Milanova, Vl. Todorov, R. Kountcheva. Image Watermarking Based on Pyramid Decomposition with CH Transform. Book chapter in “Data Engineering: Mining, Information, and Intelligence”, Eds. Yupo Chan, John Talburt, Terry M. Talley, Data Engineering, International Series in Operations Research & Management Science, Springer, 2010, pp. 353-387.
11.    V. Cherkashyn, R. Kountchev, D. Chen He, Image Decomposition on the basis of an Inverse Pyramid with Neural Networks, International Joint Conferences on Computer, Information, and Systems Sciences, and Engineering (CISSE’08), Bridgeport, CT, USA-SCSS, Vol. 1, 5-13 December 2008, (Book chapter in: "Innovations and Advances in Computer Sciences and Engineering", T. Sobh (Ed.), Springer Netherlands, 2010, pp. 445-450).
12.    M. Milanova, R. Kountchev, S. Rubin, Vl. Todorov, R. Kountcheva. Content Based Image Retrieval using Adaptive Inverse Pyramid Representation. (HCI International 2009, 19-24 July 09, San Diego, CA, USA), M. Smith, G. Salvendy (Eds.). Book chapter in: “Human Interface”, Part II, HCI, LNCS 5618. Springer-Verlag Berlin, Heidelberg 2009, рр. 304-314 (IF 0.4).
13.    R. Kountchev, R. Kountcheva. Image Color Space Transform with Enhanced KLT. KES International Symposium of Intelligent Decision (KES-IDT’09), Himeji Japan, Book chapter in “New Advances in Intelligent Decision Technologies”, Eds. K. Nakamatsu, G. Philips-Wren, L. Jain, R. Howlett, Springer-Verlag, 2009, pp. 171-182.
14.    I. Draganov, Handwriting recognition via iterative segmentation, neural networks and lexical verification - PhD thesis abstarct, Technical University Publishing House, Sofia, Bulgaria, 2009 (in Bulgarian).
15.    Gluhchev, G ., O. Boumbarov,  Automatic Evaluation of Stroke Slope, Lecture Notes in Computer Science, Springer (Including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 5372 LNCS, pp. 200-205, 2008.
16.    R. Kountchev, R. Kountcheva. Image Representation with Reduced Spectrum Pyramid. Book chapter in “New Directions in Intelligent Interactive Multimedia”, Eds. G. Tsihrintzis, M. Virvou, R. Howlett, L. Jain, Springer Verlag, Berlin Heidelberg, 2008, pp. 275-284.
17.    Gluhchev, G., M. Savov, O. Boumbarov, D. Vasileva, A New Approch to Signature Authentication, Lecture Notes in Computer Science (Including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 4642 LNCS, pp. 594-603, 2007.
18.    M. Milanova, R. Kountchev, V. Todorov, R. Kountcheva, Pre-and Post Processing for Enhancement of Image Compression Based on Spectrum Pyramid, Book chapter in “Innovative Algorithms and Technoloques in Automation, Industrial Electronics and Telecommunications”, T. Sobh, Kh. Elleithy, A. Mahmood, M. Karim (Eds.), Springer, 2007, pp. 269-274.

Journal Papers
19.    R. Kountchev, B. Iantovics, Vl. Todorov, R. Kountcheva, Access Management in Medical Image Databases Based on New Format and Contents Protection with Inverse Pyramid Decomposition, BRAIN: Broad Research in Artificial Intelligence and Neuroscience, Vol. X, Issue X , 2011 (in press).
20.    I. Draganov and R. Kountchev, Compression of Multispectral Images with Branched Inverse Pyramidal Decomposition and Non-linear Processing, Geosciences Journal, 2011 (in press).
21.    R. Kountchev, S. Rubin, Vl. Todorov, R. Kountcheva. Automatic detection of welding defects. International Journal of Reasoning-Based Intelligent Systems (IJRIS), Vol 3, No 1, 2011, pp. 34-43.
22.    A. Popova, N. Neshov, and I. Draganov, Text Detection from Images and Video with Complex Background in DCT Domain, E+E Journal, 2011 (in press).
23.    Panev, S., O. Boumbarov, Eye Tracking with  A Single Infra-Red Camera, International journal GESTS International Transaction on Computer Science and Engineering,  VOL.62, NO 1, November 2010, pp. 137-149, Seoul, Korea, 2010.
24.    Velchev, Y., V. Gueorguiev, O. Boumbarov, V. Trifonov, Cardiac Rhythm Regularity Analysis based on ECG Projections in Subspaces,  International journal GESTS International Transaction on Computer Science and Engineering,  VOL58, NO 1, pp. 125-137, Seoul, Korea, 2010. 
25.    Velchev, Y., O. Boumbarov, ECG Segmentation using HMM/ANN,  International journal GESTS International Transaction on Computer Science and Engineering,  VOL.62, NO 1, November 2010, pp. 49-58, Seoul, Korea, 2010.
26.    Kanchev V., O. Boumbarov, Creating Panoramic Image Mosaics for Video Surveillance Purposes, Proceedings of the Technical University-Sofia, Vol. 60, book 3, pp: 23-31, 2010.
27.    V. Cherkashyn, D.C. He, R. Kountchev, A novel adaptive representation method (AIPR/BPNN) of satellite visible very high definition images, Journal of Communication and Computer, September 2010, Volume 7, No. 9 (Serial No. 70), USA, 2010, pp. 55-66.
28.    R. Kountchev, Vl. Todorov, R. Kountcheva, RSCT-Invariant Object Representation with Modified Mellin-Fourier Transform, Intern. Journal "WSEAS Trans. on Signal Processing", Issue 4, Vol. 6, October 2010, pp. 196-207.
29.    R. Kountchev, Vl. Todorov, R. Kountcheva, Fragile and Resistant Image Watermarking Based on Inverse Difference Pyramid Decomposition, Intern. Journal "WSEAS Trans. on Signal Processing", Issue 3, Vol. 6, July 2010, pp. 101-112.
30.    A. Popova, V. Kanchev, and I. Draganov, Mamographic Segmentation by Thresholding and Fuzzy C-Means Clustering, Computer & Communications Engineering, Vol. 4, No. 1, pp. 31-36, 2010.
31.    Boumbarov, O., K. Tonchev, S. Sokolov, “Face Recognition based on Linear Transforms and Classifier Combination”, Journal “Information Technologies and Control”, vol. 3,4/ 2008,  SAI, Sofia, pp: 21-27, 2009;
32.    Boumbarov, O., Y. Velchev, S. Sokolov, “Personal Biometric Identification based on ECG Features”, Journal “Information Technologies and Control”, vol. 3,4/ 2008,  SAI, Sofia,  pp: 2-9, 2009.
33.    V. Cherkashyn, Dong-Chen He, R. Kountchev. Image Decomposition on the Basis of an Inverse Pyramid with 3-layer Neural Networks. Journal of Communication and Computer, USA, Nov. 2009, Vol. 6, No 11, pp. 1-9.
34.    R. Kountchev, S. Rubin, M. Milanova, Vl. Todorov, R. Kountcheva, Non-Linear Image Representation Based on IDP with NN. WSEAS Trans. on Signal Processing, ISSN: 1790-5052, Issue 9, Volume 5, September 2009, pp. 315-325.
35.    R. Kountchev, Vl. Todorov, R. Kountcheva, Multi-view Object Representation with Modified 2-Layer IDP Decomposition. WSEAS Trans. on Signal Processing. ISSN: 1790-5052, Issue 9, Volume 5, September 2009, pp. 326-335.
36.    V. Cherkashyn, D. Chen He, R. Kountchev. Compression of High-resolution Satellite Images with Pyramidal Neural Network, “International Journal of Neural Networks and Applications”, International Science Press India, January-June 2009, pp. 5-14.
37.    R. Kountchev, Vl. Todorov, R. Kountcheva. Efficient archiving of documents with protection of their authentic contents. “International Journal of Reasoning-Based Intelligent Systems” (IJRIS), Vol. 1, Nos. 1/2, 2009, pp. 43-55.
38.       Muratovski, K., O. Boumbarov, D. Shtilyanova, Comparison of Probabilistic Color Models for Skin Regions Detection, Proceedings of the Technical University-Sofia, Vol. 58, book 1, pp. 108-117,  2008.
39.    Muratovski, K., O. Boumbarov,  Face Tracking Using Adaptive Mean-Shift Algorithm and Kalman Filter, Proceedings of the Technical University-Sofia, Vol. 58, book 1, pp. 118-127, 2008.
40.    R. Kountchev, M. Milanova, Vl. Todorov, Roumiana Kountcheva. Multiple Audio Watermarking With Spectrum Pyramid. International Journal of Computer Science and Network Security (IJCSNS), Vol. 7, No. 2, February 2007, pp. 191-200. (IF 0.484).
41.    N. Hikal, R Kountchev. A Method for Digital Image Compression with IDP Decomposition Based on 2D-SOFM VQ. “ICGST International Journal on Graphics, Vision and Image Processing” (GVIP), Special Issue on Image Compression, 2007, pp. 37-42.
42.    N. Hikal, R Kountchev. A Method for Digital Image Compression with IDP Decomposition Based on 2D-SOFM VQ. “ICGST International Journal on Graphics, Vision and Image Processing” (GVIP), Special Issue on Image Compression, 2007, pp. 37-42.
43.    I. Draganov, and A. Popova, Handwritten word segmentation combining self-organizing neural networks and heuristic rules, In Proceedings of the Technical University – Sofia, Bulgaria, Vol. 57, No. 1, pp. 148-153, 2007.
44.    R. Kountchev, M. Milanova, Vl. Todorov, R. Kountcheva. Adaptive Fuzzy Filter for the Reduction of Blocking Artifacts in Images Compressed with IDP Decomposition and JPEG. WSEAS Trans. on Signal Processing. Issue 7, Vol. 2, July 2006, pp. 941-948.
45.    R. Kountchev, Vl. Todorov, R. Kountcheva, M. Milanova. Lossless Compression of Biometric Images and Digital Watermarking with IDP Decomposition. WSEAS Trans. on Signal Processing, Issue 5, Vol. 2, May 2006, pp. 684-691.

Conference Proceedings
International Scientific Conferences - IEEE, WSEAS
46.    V. Cherkashyn, N. Hikal, R. Kountchev, Y. Biletskiy,   Image Compression Based On the Inverse Difference Pyramid with BPNN. Proc. of IEEE International Symposium on Industrial Electronics (ISIE’06), Montréal, Canada, Vol, 1, July 2006, pp. 645-648.
47.    S. Rubin, R. Kountchev, Vl. Todorov, R. Kountcheva. Contrast Enhancement with Histogram-Adaptive Image Segmentation. The 2006 Intern. Conf. on Information Reuse and Integration (IEEE IRI 2006), Hawaii, USA, Sept. 2006, pp. 602-607.
48.    R. Kountchev, Vl. Todorov, M. Milanova, R. Kountcheva. Documents Image Compression with IDP and Adaptive RLE. The 32nd Annual Conf. on the IEEE Industrial Electronics Society (IECON’06), Paris, France, November 2006, pp. 3261-3266.
49.    R. Kountchev, Vl. Todorov, R. Kountcheva, M. Milanova. Adaptive Fuzzy Filter for Reduction of Blocking Artifacts in Images Compressed with IDP Decomposition. 10th WSEAS Int. Conf. on COMPUTERS (CSCC \'06), Athens, Greece, July 2006, pp. 502-507.
50.    R. Kountchev, Vl. Todorov, R. Kountcheva, M. Milanova. Lossless Compression of Biometric Image Data. 5-th WSEAS International Conference on Signal Processing, Istanbul, Turkey, May 27-29, 2006, pp. 185-190.
51.    Gluhchev, G., M. Savov, O. Boumbarov, D. Vasileva, A New Approch to Signature Authentication, IAPR/IEEE International Conference on Biometric, 27-29 August, Seul, Korea, pp: 594-603, 2007.
52.    Sokolov, St., O. Boumbarov, G. Gluhchev, Face Recognition Using Combination of Wavelet Packet, PCA and LDA,  The 7th IEEE International Symposium on Signal Processing and Information Technology(ISSPIT’07, Cairo’07), Dec. 15-18, Cairo, Egypt, pp: 261-266, 2007.
53.    Atanassov, K., O. Boumbarov, G. Gluhchev, S. Hadjitodorov, A. Shanon, V. Vassilev. “A generalized net model of biometric access-control system”,  Proc. of the 9th Int. Conf. on Automatic control, Modeling and Simulation WSEAS’07, Istanbul, 27-29 May, 2007, pp. 77-80.  
54.    R. Kountchev, S. Rubin, M. Milanova, V. Todorov, R. Kountcheva. Image Multi-Layer Search Based on Spectrum Pyramid. The 2007 IEEE International Conference on Information Reuse and Integration (IEEE IRI’07), Las Vegas, USA, August 2007, pp. 436-440.
55.    R. Kountchev, M. Milanova, V. Todorov, R. Kountcheva. Enhancement of the Visual Quality of Scanned Documents. The 2007 IEEE International Conference on Information Reuse and Integration (IEEE IRI’07), Las Vegas, USA, August 2007, pp. 367-372.
56.    R. Kountchev, M. Milanova, V. Todorov, R. Kountcheva. Data Hiding with Image Decomposition Based on General Spectrum Pyramid. The 7th IEEE International Symposium on Signal Processing and Information Technology (IEEE ISSPIT’07). Le Meridien Pyramids, Cairo, Egypt, December 2007, pp. 924-927.
57.    I. Draganov and A. Popova, Handwritten text preprocessing algorithm applying SUSAN principle, In Proceedings of the Seventh IEEE International Symposium on Signal Processing and Information Technology (ISSPIT’2007), Le Meridien Pyramids Hotel, Cairo, Egypt, pp. 1127-1131, December 15-18, 2007.
58.    R. Kountchev, Vl. Todorov, R. Kountcheva. Compression and Contents Protection of Images, Texts and Graphics for Distance Learning Applications. Proceedings of the 6th WSEAS International Conference on Signal Processing, Robotics and Automation, Corfu Island, Greece, February 16-19, 2007, pp. 83-90.
59.    Petrov, P., Boumbarov,   Nonlinear Adaptive Control of a Two-Vehicle Autonomous Convoy Using a Look-Ahead Approach, WSEAS’2008 International Conference on Signal Processing, Robotics  and Automation (ISPRA’08), Cambridge, UK, 20-22 Feb., pp:55-60, 2008.
60.    Petrov , P., Boumbarov, A. Bekyarski, Discontinuous Control for the Parking Problem of a Mobile Robot with Four Steering Wheels, WSEAS’2008 International Conference on Signal Processing, Robotics  and Automation (ISPRA’08), Cambridge, UK, Feb. 20-22, pp: 20-25, 2008.
61.    Petrov, P., O. Boumbarov, K. Muratovski, Face Detection and Tracking with an Active Camera, IEEE International Conference Intelligent Systems’2008, Methodology, Models, Applications in Emerging Technology, Sept. 6-8, Varna, Bulgaria, pp: 14.34-14.39, 2008.
62.    Milushev, M., P. Petrov, O. Boumbarov, Active Target Tracking a Six-Legged Robot, IEEE International Conference Intelligent Systems’2008, Methodology, Models, Applications in Emerging Technology, Sept. 6-8, Varna, Bulgaria, pp: 4.56 – 4.61, 2008.
63.    Gluhchev, G ., O. Boumbarov,  Automatic Evaluation of Stroke Slope, IEEE International Conference Intelligent Systems’2008, Methodology, Models, Applications in Emerging Technology, Sept. 6-8, Varna, Bulgaria, pp: 12.14-12.16, 2008.
64.    M. Milanova, S. Rubin, R. Kountchev, Vl. Todorov, R. Kountcheva. Combined Visual Attention Model for Video Sequences. International Conference on Pattern Recognition, (ICPR’08), Tampa, Florida, USA, December 8-11, 2008, ThBT3.2, 4 p.
65.    V. Cherkashyn, R. Kountchev, D. Ch. He, R. Kountcheva, Adaptive Image Representation Based on Pyramidal Decomposition with BPNNs, IEEE Symposium on Signal Processing and Information Technology (ISSPIT’08), Sarajevo, Bosnia and Herzegovina, 18-19 December 2008, pp. 441-446
66.    R. Mironov, R. Kountchev, Adaptive Contour Image Interpolation of Sign Language Interpretation, IEEE Symposium on Signal Processing and Information Technology (ISSPIT’08), Sarajevo, Bosnia and Herzegovina, 18-19 December 2008, pp. 164-169.
67.    M. Milanova, R. Kountchev, Vl. Todorov, R. Kountcheva, New Method for Lossless Compression of Medical Records, IEEE Symposium on Signal Processing and Information Technology (ISSPIT’08), Sarajevo, Bosnia and Herzegovina, 18-19 December 2008, pp. 23-28.
68.    R. Kountchev, S. Rubin, M. Milanova, Vl. Todorov, R. Kountcheva. Extraction of Objects Contours for Body Language Study. The 2008 IEEE Intern. Conference on Information Reuse and Integration (IEEE IRI’08), Las Vegas, USA, July 13-15, 2008, pp. 220-225.
69.    R. Kountchev, Vl. Todorov, R. Kountcheva. Adaptive Histogram Modification for Enhancement the Visual Quality of Latent Fingerprints. 10th WSEAS International Conference on Mathematical Methods and Computational Techniques in Electrical Engineering (MMACTEE’08), Sofia, May 2-4, 2008, pp. 28-33.
70.    R. Kountchev, Vl. Todorov, R. Kountcheva. Contours Extraction in Grayscale Images of Sign Language Interpreter. 10th WSEAS International Conference on Mathematical Methods and Computational Techniques in Electrical Engineering (MMACTEE’08), Sofia, May 2-4, 2008, pp. 22-27.
71.    R. Kountchev, Vl. Todorov, R. Kountcheva. Adaptive Pre-processing of Scanned Documents. 10th WSEAS International Conference on Mathematical Methods and Computational Techniques in Electrical Engineering (MMACTEE’08), Sofia, May 2-4, 2008, pp. 34-39.
72.    R. Kountchev, S. Rubin, M. Milanova, Vl. Todorov, R. Kountcheva. Cognitive Image Representation Based on Spectrum Pyramid Decomposition. 10th WSEAS International Conference on Mathematical Methods and Computational Techniques in Electrical Engineering (MMACTEE’08), Sofia, May 2-4, 2008, pp. 230-235.
73.    R. Kountchev, Vl. Todorov, R. Kountcheva. Flexible Archiving of Old Handwritten Documents. WSEAS Intern. Conf. on Signal Processing, Istanbul, Turkey, May 27-29, 2008, pp. 13-18.
74.    I. Draganov, A. Popova, and L. Ivanov, Multilingual names database searching enhancement. In Proceedings of the Eighth IEEE International Symposium on Signal Processing and Information Technology (ISSPIT’2008), Sarajevo, Bosnia and Herzegovina, pp. 474-479, December 16-19, 2008.
75.    Boumbarov, O., Y. Velchev, S. Sokolov, ECG Personal Identification in Subspaces using Radial Basis Neural Networks, Proceedings of the 5th IEEE International Workshop on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications (IDAACS’09), Sept. 21-23, Rende (Cosenza) Italy, pp: 446-451, 2009.
76.    Boumbarov, S. Panev, S. Sokolov, V. Kanchev, IR Based Pupil Tracking using Optimized Particle Filter, Proceedings of the 5th IEEE International Workshop on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications (IDAACS’09), Sept. 21-23, Rende (Cosenza) Italy, pp:404-408, 2009.
77.    Boumbarov, S. Sokolov, P. Petrov, A. Sachenko, Y. Kurylyak, Kernel-based Face Detection and Tracking with Adaptive Control by Kalman Filtering, Proceedings of the 5th IEEE International Workshop on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications (IDAACS’09), Sept. 21-23, Rende (Cosenza) Italy, pp: 434-439, 2009.
78.    Paliy, I., A. Sachenko, Y. Kurylyak, O. Boumbarov, S. Sokolov, Combined Approach to Face Detection for Biometric Identification System, IEEE International Workshop on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications (IDAACS’09), Sept. 21-23, Rende (Cosenza) Italy, pp: 425-429, 2009.
79.    R. Kountchev, R. Kountcheva. New Method for Adaptive Karhunen-Loeve Color Transform. (Invited paper) Proc. of the 9th Intern. Conf. on Telecommunications in Modern Satellite, Cable and Broadcasting Services (TELSIKS’09), IEEE Catalog Number CFP09488-CD,RNis, Serbia, Oct. 07-09, 2009, pp. 209-216.
80.    R. Kountchev, S. Rubin, M. Milanova, Vl. Todorov, R. Kountcheva. Intra-frame Compression of Video Sequences with Inverse Difference Pyramid Decomposition. IEEE IRI’09, August 2009, Las Vegas, Nevada, USA, pp. 218-223.
81.    R. Kountchev, Vl. Todorov, R. Kountcheva. Multi-view Object Representation with Inverse Difference Pyramid Decomposition. Proceedings of the 8th WSEAS International Conference on Signal Processing, Istanbul, Turkey, May 30 - June 1, 2009, pp. 44-49.
82.    R. Kountchev, St. Rubin, M. Milanova, Vl. Todorov, R. Kountcheva. Resistant Image Watermarking in the Phases of the Complex Hadamard Transform Coefficients, The 2010 IEEE Intern. Conference on Information Reuse and Integration (IEEE IRI’10), Las Vegas, USA, Aug. 02-04, 2010, pp. 159-164.
83.    R. Kountchev, Vl. Todorov, R. Kountcheva, Invariant Object Representation with Modified Mellin-Fourier Transform, Proc. of the 14th WSEAS Conference on Computers "Latest Trends on Computers" (Part of the 14th CSCC Multiconference), Eds. N. Mastorakis, V. Mladenov, Z. Boikovic and D. Simian, Vol. 1, Corfu Island, Greece, July 23-25, 2010. pp. 232-237.
84.    R. Kountchev, Vl. Todorov, R. Kountcheva. Image content protection based on multi-layer decomposition. Proc. of the 9th WSEAS Int. Conf. on Signal Processing, Robotics and Automation (ISPRA’10), University of Cambridge, UK, February 20-22, 2010, pp. 91-96.
85.    I. Draganov, A. Popova, and N. Neshov, Asymptotic state of one-dimensional SOM at normal point density input passed through non-linear channel, In Proc. 14th WSEAS Conf. on Computers, Corfu Island, Greece, Vol. 2, pp. 761-765, July 23-25, 2010.
86.    Yuriy Kurylyak, Y., F. Lamonaca, G. Mirabelli, O. Boumbarov, S. Panev,   The Infrared Camera-based System to Evaluate the Human Sleepiness, IEEE International Symposium on Medical Measurements and Applications (MeMeA 2011), 30-31 May Bari Italy, 2011 (Accepted).
87.    Boumbarov, O., P. Petrov, L. Dimitrov, S. Panev, I. Paliy,  Homography-Based Face Orientation Determination from a Fixed Monocular Camera, The 6th IEEE International Conference on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications, 15-17 September 2011, Prague, Czech Republic, 2011.
88.    Kanchev, V., K. Tonchev, O. Boumbarov, Blurred Image Regions Detection using Wavelet-based Histograms and SVM, The 6th IEEE International Conference on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications, 15-17 September 2011, Prague, Czech Republic, 2011.
89.    Tonchev, K., O. Boumbarov, I. Paliy, J. Garcia, Human Age-Group Classification of Facial Images with Subspace Projection and Support Vector Machines, The 6th IEEE International Conference on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications 15-17 September 2011, Prague, Czech Republic, 2011.
90.    Manolova, A., K. Tonchev, O. Boumbarov, I. Paliy, Recognition of Facial Images with Subspace Projection and Dissimilarity Representation, The 6th IEEE International Conference on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications 15-17 September 2011, Prague, Czech Republic, 2011.
91.    Paliy, I., V. Dovgan, O.Boumbarov, S. Panev, Fast and Robust Face Detection and Tracking Framework, The 6th IEEE International Conference on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications 15-17 September 2011, Prague, Czech Republic, 2011.
92.    R. Kountchev, Vl. Todorov, R. Kountcheva. Defects detection in X-ray images and photos, Proc. of the 10th WSEAS Int. Conf. on Signal Processing, Robotics and Automation (ISPRA’11), University of Cambridge, UK, February 20-22, 2011, pp. 132-137.

International Scientific Conferences
93.    Boumbarov, O., S. Sokolov, G. Gluhchev, Face Recognition using Principal Component Analysis and Radial Basis Neural Network, Intern. Scientific Conference “Computer Science’2006”, Istanbul, Turkey, pp.324-329, 12-16 Oct. 2006.
94.    Boumbarov, O., D.Vasileva, G. Gluhchev, Coarse to fine Face Detection using Gaussian models and Geometrical information, International Conference “Automatics and Information’06”, Second Intern. BioInfo’06 Workshop on Computational Intelligence in Bioinformatics, Sofia, Oct. 2006, pp.135-138, 2006.   
95.    Savov, M., G. Gluhchev, O. Boumbarov, Signature Verification via Hand-Pen Motion investigation, Int. Conf. on Computer Systems and Technologies’2006, Vol. PIB7, pp.1-6, Sofia, Sept. 2006.
96.    R. Kountchev, Vl. Todorov, R. Kountcheva. Image Pre-processing for IDP efficiency enhancement. XLI International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST’06), 29 June - 1 July 2006, Sofia, Bulgaria, pp. 153-156.
97.    R. Kountchev, Vl. Todorov, R. Kountcheva. Post-Processing for Quality Improvement of IDP-Compressed Images. XLI International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST’06), 29 June - 1 July 2006, Sofia, Bulgaria, pp. 157-160.
98.    R. Mironov, R. Kountchev. Analysis of Complex Hadamard Transform Properties. XLI International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST’06), 29 June - 1 July 2006, Sofia, Bulgaria, pp. 173-176.
99.    N. Hikal, R. Kountchev, R. El-Awady, A. Shaalan. A Method for Digital Image Compression with IDP Based on Gaussian Radial Basis Function NNs. XLI International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST’06), 29 June - 1 July 2006, Sofia, Bulgaria, pp. 161-164.
100.     V. Georgieva, R. Kountchev. An Influence of the Wavelet Packet Decomposition on the Noise Reduction in Ultrasound Images. XLI International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST’06), 29 June - 1 July 2006, Sofia, Bulgaria, pp. 185-188.
101.    I. Draganov and A. Popova, Rotation angle estimation of scanned handwritten cursive text documents, In Proceedings of the XLI International Scientific Conference Information, Communication and Energy Systems and Technologies (ICEST\'2006), Technical Univesity, Sofia, Bulgaria, pp. 177-180, June 29 - July 01, 2006.
102.    O. Boumbarov, S. Sokolov, and G. Gluhchev. Combined face recognition using wavelet packets and radial basis function neural network. In CompSysTech \'07: Proceedings of the 2007 international conference on Computer systems and technologies, pages 1-7, New York, NY, USA, 2007. ACM.
103.    Gluhchev, G., M. Savov, O. Boumbarov, Classification of Classifiers, Proceeding of International Scientific Conferance on Energy and Information Systems and Technologies’2007 (ICEST’2007), vol. 2. pp: 521-523, Ohrid, Macedonia, 2007.
104.    Gluhchev, G., M. Savov, O. Boumbarov, Class-dependent Feature Weights Evaluation, Intern. Conf. on Computer Systems and Technologies 2007(CompSysTech’07), June 2007, vol. V, pp:1-5, Russe, Bulgaria, 2007.
105.    Boumbarov, O., St. Sokolov, G. Gluhchev, Combined Face Recognition Using Wavelet Packets and Radial Basis Function Neural Networks, Intern. Conf. on Computer Systems and Technologies 2007(CompSysTech’07), June 2007, vol. V.4, pp: 1-7, Russe, Bulgaria, 2007.
106.    Vasileva, D., O. Boumbarov, G. Gluhchev, Skin Color Gaussian Model Parameter Estimation from Incomplete Glustering Training Set” Proceedings of Intern. Conference “Automatics and Informatics”, “Bioinfo’07”, Sofia, Bulgaria, 5-7 Oct., Vol. ІII, pp: 25-28, 2007.
107.    R. Kountchev, M, Milanova, V. Todorov, R. Kountcheva. Fingerprints Contrast Enhancement. Proc. of Intern. Symposium on Innovations in Intelligent Systems and Applications (INISTA’07), Istanbul, Turkey, June 2007, pp. 303-307.    
108.    R. Kountchev, M, Milanova, V. Todorov, R. Kountcheva. Adaptive Compression of Compound Images. Proc. of 2007 14th International Workshop on Systems, Signal and Image Processing (IWSSIP) and 6th EURASIP Conference on Speech and Image Processing, Multimedia Communications and Services (EC-SIPMCS), Maribor, Slovenia, June 2007, pp. 139-142.
109.    R. Kountchev, V. Todorov, R. Kountcheva. Efficient Compression for Contour Images. XLII International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST’07), Ohrid, Macedonia, June 2007, pp. 351-354.
110.    R. Kountchev, V. Todorov, R. Kountcheva. Processing of Sequences of Contour Images of Sing-Language Interpreter. XLII International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST’07), Ohrid, Macedonia, June 2007, pp. 365-368. 
111.    R. Mironov, R. Kountchev, V. Mirchev. Ordered Complex Hadamard Transform of Images. XLII International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST’07), Ohrid, Macedonia, June 2007, pp. 369-372. 
112.    I. Draganov and A. Popova, Comparative analysis of basic self-organizing map and neocognitron for handwritten character recognition, In Proceedings of the XLII International Scientific Conference Information, Communication and Energy Systems and Technologies (ICEST’2007), Hotel Granit, Ohrid, Macedonia, Vol. II, pp. 477-480, June 24-27, 2007.
113.    Velchev, Y., O. Boumbarov, Wavelet-based ECG QRS Detector, International Scientific Conference on Energy and Information Systems and Technologies’2008 (ICEST’2008), Nis, Serbia, June 25-27, pp: 337-340, 2008.
114.    Panev, St., O. Boumbarov, St. Sokolov, IR Based Pupil Extraction Using Particle filtering, Proceedings of the International Scientific Conference Computer Science’2008, 18-19 September, Kavala, Greece, part I, pp. 43-48, 2008.
115.    Velchev Y., O. Boumbarov, “A Probabilistic ECG QRS Detector,” International Conference Automatics and Informatics ’08, Proceedings, Oct. 1-4, Sofia, Bulgaria, vol.2 pp.29-33, 2008.
116.    Velchev, Y., O. Boumbarov, Wavelet Transform based ECG Characteristic Points Detector, Proceedings of the International Scientific Conference “Computer Science’2008”, 18-19 September, Kavala, Greece, part I, pp. 49-54,  2008.
117.    V. Cherkashyn, R. Kountchev, D. Chen He, Image Decomposition on the basis of an Inverse Pyramid with Neural Networks, International Joint Conferences on Computer, Information, and Systems Sciences, and Engineering (CISSE’08), Bridgeport, CT, USA-SCSS, Vol. 1, 5-13 December 2008.
118.    M. Milanova, R. Kountchev, Vl. Todorov, R. Kountcheva, New tool for providing additional game information for hearing impaired people. 13th International Conference on Computer Games: AI, Animation, Mobile, Interactive Multimedia, Educational & Serious Games, Wolverhampton, UK, Nov. 3-5, 2008, pp. 121-125.
119.    R. Kountchev, Vl. Todorov, R. Kountcheva. Efficient Sign Language Video Representations. Proc. of International Workshop on Systems, Signal and Image Processing (IWSSIP-2008), Bratislava, June 25-28, 2008, pp. 177-180.
120.    R. Kountchev, Vl. Todorov, R. Kountcheva. Adaptive Processing of Latent Fingerprints. XLIII Intern. Scientific Conf. on Information, Communication and Energy Systems and Technologies (ICEST’08), Serbia, Nish, June 25-27, 2008, pp. 101-104.
121.    I. Draganov, R. Kountchev. Document Decomposition Based on Recursive Radon Transform, XLIII Intern. Scientific Conf. on Information, Communication and Energy Systems and Technologies (ICEST’08), Serbia, Nish, June 25-27, 2008, pp. 83-86.
122.    R. Mironov, R. Kountchev. Optimal Thresholds Selection for Adaptive Image Interpolation, XLIII Intern. Scientific Conf. on Information, Communication and Energy Systems and Technologies (ICEST’08), Serbia, Nish, June 25-27, 2008, pp. 109-112.
123.    I. Draganov and R. Kountchev, Document decomposition based on recursive Radon transform, In Proceedings of the XLIII International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST’2008), Nis, Serbia, Vol. 1, pp. 83-86, June 25 – 27, 2008.
124.    Kanchev V., O. Boumbarov, Segmentation of Fat Tissue in MRI Images with Gaussian Models, International Scientific Conference on Energy and Information Systems and Technologies 2009 (ICEST’2009), 25-27 June, pp. 397-400, 2009.
125.    Sokolov, S., O. Boumbarov, Face Detection and Feature Extraction for Intelligent Video Surveillance, Proceedings of the Fifth International Conference Computer Science\'2009, Nov. 5-6, Sofia, pp:354-359,  2009.                                            
126.    Sokolov, S., Y. Velchev,  O. Boumbarov, Personal Biometric Identification Based on Modality Fusion, Proceedings of the Fifth International Conference Computer Science\'2009, Nov. 5-6, pp:348-353,  Sofia, 2009.
127.    Velchev, Y., S. Sokolov, O. Boumbarov, Feature Selection for Automatic ECG Personal Identification, International Scientific Conference on Energy and Information Systems and Technologies’2009 (ICEST’2009), 25-27 June, V. Tarnovo, pp: 412-416, 2009.
128.    R. Mironov, R. Kountchev, System Architecture for Distance Learning of Deaf People, XLIV Intern. Scientific Conf. on Information, Communication and Energy Systems and Technologies (ICEST’09), Veliko Tarnovo, Bulgaria, 25-27 June 2009, pp. 191-194.
129.    R. Mironov, R. Kountchev, Architecture of Image Processing System for Documents, XLIV Intern. Scientific Conf. on Information, Communication and Energy Systems and Technologies (ICEST’09), Veliko Tarnovo, Bulgaria, 25-27 June 2009, pp. 195-198.
130.    I. Draganov, R. Kountchev, Document Protection Based on CHT Coefficients’ Phase Modulation, XLIV Intern. Scientific Conf. on Information, Communication and Energy Systems and Technologies (ICEST’09), Veliko Tarnovo, Bulgaria, 25-27 June 2009, pp. 199-202.
131.    A. Manolova, R. Kountchev, I. Aleksieva, Improved System for Content Based Image Retrieval Based on Pyramid Decomposition in the Spectrum Domain, XLIV Intern. Scientific Conf. on Information, Communication and Energy Systems and Technologies (ICEST’09), Veliko Tarnovo, Bulgaria, 25-27 June 2009, pp. 217-220.
132.    R. Kountchev, M. Milanova, Vl. Todorov, R. Kountcheva, Inter/intra-frame Compression of Video Sequences of Dynamic Signatures with Hierarchical Decomposition, XLIV Intern. Scientific Conf. on Information, Communication and Energy Systems and Technologies (ICEST’09), Veliko Tarnovo, Bulgaria, 25-27 June 2009, pp. 183-186.
133.    R. Kountchev, D. Bojchev, D. Dobrev, An Analysis of the Possibilities for Using Lattices for the Interpolation of the Exact Signal Vector Position of QAM Constellations. XLIV Intern. Scientific Conf. on Information, Communication and Energy Systems and Technologies (ICEST’09), Veliko Tarnovo, Bulgaria, 25-27 June 2009, pp. 71-74.
134.    V. Cherkashyn, D. Chen He, R. Kountchev. Implementation of a New Adaptive Approach of Representation of Images (AIPR-BPNN) for Compression of IKONOS Images, 30th Canadian Symposium of Remote Sensing (CJRS), Lethbridge, Alberta, Canada, June 22-25, 2009 (#641).
135.    I. Draganov, and R. Kountchev, Document protection based on CHT coefficients’ phase modulation, In Proceedings of the XLIV International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST’2009), Veliko Tarnovo, Bulgaria, Vol. I, pp. 199-202, June 25 – 27, 2009.
136.    Panev, S., O. Boumbarov, P. Petrov, Single Eye Gase Tracking with Active Pan-Tilt Camera, International Scientific Conference on Energy and Information Systems and Technologies’2010 (ICEST’2010), 23-26 June, Ohrid, Macedonia, pp:16-19, 2010.
137.    Shtilianova, D., O. Boumbarov, 3D GMM Models for Skin Detection, International Conference “Automatic and Informatics 2010, Sofia, Vol. 1, pp: 191-195, 2010.
138.    Petrov, P., S. Panev, O. Boumbarov, Pan-Tilt Camera Control with Application to Face Tracking, XLX Intern. Scientific Conference “ADP’2010”, Sozopol, pp: 424-428, 2010.
139.    R. Kountchev, R. Kountcheva, Archiving and Content Protection of Visual Medical Information with Inverse Pyramid Decomposition, Intern. Conf. on Communications, Electromagnetics and Medical Applications, (CEMA\'10), Athens, Greece, Oct. 7-9, 2010, pp. 54-57.
140.     R. Mironov, R. Kountchev, Method for Watermarking of Medical Images Based on Fast Complex Hadamard Transform, Intern. Conf. on Communications, Electromagnetics and Medical Applications, (CEMA\'10), Athens, Greece, Oct. 7-9, 2010, pp. 58-61.
141.     E. Mendi, M. Milanova, R. Kountchev, Vl. Todorov, R. Kountcheva, Extraction of Human Body Contours and Position Analysis, The 3rd International Congress on Image and Signal Processing and the 3rd International Conference on BioMedical Engineering and Informatics (CISP\'10-BMEI\'10), Yantai, China, 16-18 Oct. 2010, pp. 2765-2769.
142.     R. Kountchev, B. Iantovics, R. Kountcheva, Efficient Management of Medical Image Databases. The 5th International Conference on Virtual Learning (ICVL\'10), Targu Mures, Romania, Oct. 29-31, 2010, pp. 395-402.
143.    B. Iantovics, M. Marusteri, R. Kountchev, C. B. Zamfirescu, B. Crainicu, Intelligent CMDS Medical Agents with Learning Capacity, The 5th International Conference on Virtual Learning (ICVL\'10), Targu Mures, Romania, Oct. 29-31, 2010, pp. 325-331.
144.    R. Kountchev, M. Milanova, Vl. Todorov, R. Kountcheva. Protection of Scanned Documents with Digital Watermarking Based on 2D Complex Hadamard Transform. SPIE Conference Defense, Security and Sensing, Orlando, Florida, USA, April, 2010, pp. 344-349.      
145.    P. Ivanov, R. Kountchev, Comparative analysis of Adaptive Color KLT and YCrCb for representation of color images, XLV Intern. Scientific Conf. on Information, Communication and Energy Systems and Technologies (ICEST’10), Ohrid, Macedonia, 23-26 June 2010, SP I, pp. 29-32.
146.    A. Manolova, R. Kountchev, Face identification with modified K-NN classifier based on linear and angular distance, XLV Intern. Scientific Conf. on Information, Communication and Energy Systems and Technologies (ICEST’10), Ohrid, Macedonia, 23-26 June 2010, SP II, pp. 1-4.
147.    R. Mironov, R. Kountchev, Algorithm for Fast Complex Hadamard Transform, XLV Intern. Scientific Conf. on Information, Communication and Energy Systems and Technologies (ICEST’10), Ohrid, Macedonia, 23-26 June 2010, SP I, pp. 1-4.
148.    R. Kountchev, R. Kountcheva, Comparison of the structures of the Inverse Difference and Laplacian Pyramids for Image Decomposition, XLV Intern. Scientific Conf. on Information, Communication and Energy Systems and Technologies (ICEST’10), Ohrid, Macedonia, 23-26 June 2010, SP I, pp. 33-36.
149.    I. Draganov, Normal point density input influence over a finite one-dimensional SOM, In Proc. of the XLV International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST’2010), Ohrid, Macedonia, Vol. I, pp. 237-240, June 23-26, 2010.
150.    I. Draganov and A. Popova, Asymptotic state of one-dimensional SOM at Rayleigh point density input, In Proc. of the International Conference on Communication, Electrotechnics and Medical Application (CEMA’10), Athens, Greece, pp. 65-68, October 07-09, 2010.
151.    R. Kountchev, Vl. Todorov, R. Kountcheva. New method for adaptive lossless compression of still images based on the histogram statistics, KES-IIMSS 2011, 4th International Symposium on Intelligent Interactive Multimedia Systems and Services, 20-22 July 2011, University of Piraeus, Piraeus-Athens, Greece, 2011 (in press).
152.    R. Kountchev, R. Kountcheva, Objects Color Segmentation and Invariant Representation using Adaptive Color KLT and Modified Mellin-Fourier Transform, The Eleventh IASTED International Conference on Artificial Intelligence and Applications (AIA 2011), Innsbruck, Austria, February 14–16, 2011, pp. 21-28.



Research Projects

(Last 5 years)

1.    “Forensic Image and Video Examination Support“(FIVES) Grant Nr. SIP-2008-TP-131801 of the European Commission, “Safer Internet Plus” Programme;
2.    “Multimodal Biometric Analysis: methods and Algorithms”, financial support by the Ministry of Education and Sciences in Bulgaria (National Science Fund), Contract  No BY-TH-202/2006 , (2006-2011), Assoc. Prof. Ognian Boumbarov, PhD;
3.    “Audio-Video Information and Communication System for Active Surveillance Cooperating with Mobile Security Robot”, financial support by the Ministry of Education and Sciences in Bulgaria (National Science Fund), Contract  No BY-I-302/2007 , (2007-2011), Prof. Alexander Bekiarski, PhD;
4.    „Automated system for contactless magnet-powder control”, Contract № 3011-6 at R&D, TU-Sofia and the National Innovation Fund, 2006-2008, Prof. Roumen Kountchev, DSc;
5.    “New tools for information security based on efficient coding, analysis and hiding of multimodal biometric information”, SfP 982617, financial support by NATO, 2007, Prof. Roumen Kountchev, DSc;
6.    “Methods and Algorithms for effective archiving and protection the authenticity of documents content”, Contract № VU-I-305 at R&D, TU-Sofia and the National Scientific Research Fund at MEYS, 2007-2010, Prof. Roumen Kountchev, DSc;
7.    “Human Biometric Identification in Video Surveillance Systems”, financial support by the Ministry of Education and Sciences in Bulgaria (National Science Fund), Contract  NoD002-41/2008, (2008-2011), Assoc. Prof. Ognian Boumbarov, PhD;
8.    “Methods and Algorithms for adaptive image interpolation”, Contract № 08051ni-7/2008 at R&D, TU-Sofia, 2008, Prof. Roumen Kountchev, DSc;
9.    “Biometric Identification in Intelligent Video Surveillance Systems”, financial support by the Science Fund, Technical University of Sofia, Contract  No091pd017-7, (2009), Assoc. Prof. Boumbarov, PhD;
10.    “Methods and Algorithms for 2D adaptive image processing”, Contract № 091ni110-07/2009 at R&D, TU-Sofia, 2009, Prof. Roumen Kountchev, DSc;
11.    “ECG Analysis based on Linear Transforms”, financial support by the Science Fund, Technical University of Sofia, Contract  No102pd110-7, (2010), Assoc. Prof. Ognian Boumbarov, PhD;
12.    “Intelligent Human-Computer Interface based on Gaze Tracking”, financial support by the Science Fund, Technical University of Sofia, Contract  No102ni168-7, (2010-2011), Assoc. Prof. Ognian Boumbarov, PhD;
13.    "Electronic Health Records for Medical Decision Support in Romanian and Bulgarian National Healthcare Systems”, International Contract № DNTS 02/19 for international cooperation between Republic of Bulgaria and Republic of Romania, National Scientific Research Fund at MEYS, 2010-2012, Prof. Roumen Kountchev, DSc;




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