Biography

Hamid Gharavi (IEEE Fellow'92) received the Ph.D. degree from Loughborough University, Loughborough, U.K., in 1980. He joined AT&T Bell Laboratories, Holmdel, in 1982. He was then transferred to Bell Communications Research (Bellcore) after the AT&T-Bell divestiture, where he became a Consultant on video technology and a Distinguished Member of Research Staff. In 1993, he joined Loughborough University as Professor and Chair of Communication Engineering. Since September, 1998, he has been with the National Institute of Standards and Technology (NIST), US Department of Commerce, Gaithersburg, MD.

He was a core member of the Study Group XV (Specialist Group on Coding for Visual Telephony) of the International Communications Standardization Body CCITT (ITU-T). He was selected as one of the six university academics to be appointed to the U.K. Government’s Technology Foresight Panel in Communications to consider the future through 2015 and make recommendations for allocation of key research funds. His research interests include video/image transmission, wireless multimedia, mobile communications and third generation wireless systems, and mobile ad-hoc networks. He holds eight U.S. patents related to these topics.

Dr. Gharavi has been a Guest Editor for a number of special issues. He is the Deputy Editor-in-Chief of the IEEE Transactions on CAS for Video Technology. Since January 2003, he has been serving as a member of the Editorial Board of the PROCEEDINGS OF THE IEEE. He received the Charles Babbage Premium Award of the Institute of Electronics and Radio Engineering in 1986 and the IEEE CAS Society Darlington Best Paper Award in 1989. Dr. Gharavi is a Distinguished Lecturer of the IEEE Communication Society.

Patents

• Gharavi, H., “Image Coding Techniques,” US Patent no. 4,578,704, March 1986.
• Gharavi, H., “Conditional Quantization of Gray Level and Color Images,” US Patent no. 4,613,948, September 1986.
• Gharavi, H., “Methods and Apparatus for Low Bit-rate Interframe Video Coding,” US Patent no. 4,821,119, April 1989.
• Gharavi, H., “Differential Sub-band Coding,” US Patent no. 4,969,040, Nov. 6, 1990.
• Gharavi, H., “Two-dimensional Block Scanning for Subband Image and Video Coding,” US patent no. 5,276,525, Jan.4,1994.
• Gharavi, H., “Blockmatching Motion Estimation for Video Codec,” US patent no. 5,200,820, Apr. 6, 1993.
• Gharavi, H., “Multilayer Universal Video Coder,” US Patent no. 5,235,420, Aug.10, 1993.
• Gharavi, H., “Efficient Coding Scheme for Multi-Level Video Transmission,” US Patent no.5,253,058, October 12,1993.
• Gharavi, H., “Dual Priority Video Transmission for Mobile Applications,” pending.
• H. Gharavi and K. Ban, “Master-Salve Cluster Based Multihop Ad-hoc Networking,” U.S. Provisional Patent Application Serial No. 60,439,072, NIST #03-004PA, 01/09/03.

Note: Please refer to the US Patent and Trademark Office Database for patent search.

Journal Publications

• H. Gharavi and S. Gao, “3-D Motion Estimation Using Range Data,” IEEE Transactions on Intelligent Transportation Systems, Vol. 8, No. 1, March 2007, pp. 133-143.
• H. Gharavi, K. Prasad, P. Ioannou, “Scanning Advanced Automobile Technology,” THE PROCEEDINGS OF THE IEEE, Vol. 91, No. 2, February 2007.
• H. Gharavi, K. Prasad, P. Ioannou, “Advanced Automobile Technology: Scanning the Issue,” THE PROCEEDINGS OF THE IEEE, Vol. 91, No. 2, February 2007.
• H. Gharavi, “Control Based Mobile Ad-hoc Netwroks For Video Communications,” IEEE Transactions on Consumer Electronics, Vol. 52, No. 2, May 2006, pp. 383-391.
• H. Gharavi, K. Ban, “Multihop Sensor Network Design for Wideband Communications ,” THE PROCEEDINGS OF THE IEEE, vol. 91, NO. 8, August 2003, pp. 1221-1234.
• H. Gharavi and S. Kumar, “Sensor Networks and Applications: Scanning the Issue,” THE PROCEEDINGS OF THE IEEE, Vol. 91, No. 8, August 2003.
• H. Gharavi, F. Chen, K. Ban, R. Wyatt-Millington, “A Link-Level Simulator of the cdma2000 Reverse-link Physical Layer,” J RES NATL INST STAN, Vol. 108. No. 4, July-August 2003.
• H. Gharavi and K. Ban, “ Master/Slave Multihop Ad-hoc Networks,” IEE ELECTRON LETT, Vol. 38, No. 25, 5 th December 2002, pp. 1756-1757.
• K. Ban, H. Gharavi, “IEEE 802.11 FHSS receiver design for cluster-based multihop video communications,” Wireless Communications and Mobile Computing Volume: 2, Issue: 6, September 2002,pp. 595-605.
• H. Gharavi, “Pilot Assisted 16-QAM for Video Communication,” IEEE Transactions on CSVT, Vol. 12, No. 2, February 2002, pp. 77-89.
• H. Gharavi H. Reza-Alikani, “Pel Recursive Motion Estimation Algorithm,” IEE ELECTRON LETT 37: (21) 1285 ?1286 October 11 2001.
• H. Gharavi and S. M. Alamouti, “Video Transmission for Third Generation,” J RES NATL INST STAN, Vol. 106, No. 2, March-April 2001.
• H. Gharavi and L. Hanzo, “Video Transmission for Mobile Multimedia Applications: Scanning the Issue,” Proceedings of the IEEE, Vol. 87, No. 10, October 1999.
• H. Gharavi and S. M. Alamouti, “Multi priority Video Transmission for Third Generation Wireless Communication Systems,” Proceedings of the IEEE, Vol. 87, No. 10, October 1999, pp1751-1763.
• H. Gharavi and C.N. Judice, “Guest Editorial Foreword, Special Issue on Mobile Image/Video Transmission,” Signal Processing: Image Communication, Vol. 12, No. 2, April 1998
• H. Gharavi, and C. I. Richards, “Partitioning of MPEG Coded Video Bitstreams for Wireless Transmission,” IEEE Signal Processing letter, June 1997.
• H. Gharavi, H., Yasuda, and T. Meng, “Wireless Visual Communications: Guest Editors' Foreword,” IEEE Transactions on CAS for Video Technology, April issue 1996.
• H. Gharavi and H. Partovi, “Multilevel Video Coding and Distribution Architectures for Emerging Broadband Digital Networks,” IEEE Transactions on CSVT, October 1996,VOL. 6, NO. 5, pp. 459-469.
• R. Stedman, H. Gharavi, L. Hanzo, and R. Steele, “Transmission of Coded Images via Mobile Channels,” IEEE Transactions on Circuits and Systems for Video Technology, CSVT, vol.3, NO. 1, pp.15-26, February 1993.
• H. Gharavi, “An Efficient Multi-Level Coding Scheme for Video Transmission,” IEE Electronics Letters, no. 10, May 7, 1992.
• E.G. Paek, P. F. Liao, and H. Gharavi, “A Derivation of Neural Network Models and Their Computational Circuits for Associative Memory,” Optical Engineering, special issue on optical processing and pattern recognition and neural networks, May 1992.
• H. Gharavi, “Sub-band Coding Algorithms for Video Applications: Videophone to HDTV-Conferencing,” IEEE Transactions on Circuits and Systems for Video Technology, June 1991, VOL. 1, NO. 2, pp. 174-183.
• H. Gharavi, “Multi-Layer Sub-band Based Video Coding,” IEEE Transactions on Communications, September Issue 1991.
• H. Gharavi, and M. Mills, “Blockmatching Motion Estimation,” IEEE Transactions on Circuits and Systems, Vol. 37, No. 5, May 1990, pp. 649-651.
• H. Gharavi, P. Pirsch, and H. Yasuda, “Special Issue on VLSI Implementation for Digital Image and Video,” IEEE Transactions on CAS, Vol. 36, October 1989.
• H. Gharavi, “Low Bit-rate Video for ISDN,” IEEE Transactions on Circuits and Systems, Feb. 88, Vol. CAS-35, No. 2, pp. 207-214.
• H. Gharavi and A. Tabatabai, “Sub-band Coding of Monochrome and Color Images,” IEEE Transactions on Circuits and Systems, Feb. 88, Vol. CAS-35, No. 2, pp. 207-214.
• H. Gharavi and R. Steele, “Noiseless Encoding of Speech Signals,” IEE Proc. F. Communications, Radar and Signal Processing, Vol. 134, No. 6, October 1987, pp. 533-538.
• H. Gharavi, “Conditional Run-Length and Variable Length Coding of Pictures,” IEEE Transactions on Communications, Vol. COM-35, June 1987, pp. 671-677.
• H. Gharavi, “Conditional Entropy Coding of Digital Pictures,” Journal of IERE, Vol. 56, No. 5, May 1986, pp. 213-218.
• H. Gharavi, “Conditional Variable Length Coding for Grey Level Pictures,” The Bell System Technical Journal, BSTJ, Vol. 63, No. 2, February 1984, pp. 249-260.
• H. Gharavi and A. N. Netravali, “CCITT Compatible Coding of Multi-Level Pictures,” The Bell System Technical Journal, BSTJ, Vol. 62, No. 9, November 1983, pp. 2765-2778.
• H. Gharavi, “Differential Encoding of Composite SECAM Color TV Signals,” Electron. Lett., 1981, 17, pp. 122-123.
• H. Gharavi, “Bandwidth Compression of Digital Color Television Signals Using Block Adaptive DPCM,” IEE Proc. F. Communications, Radar and Signal Proc., 1980, 127, (5), pp. 122-123.
• H. Gharavi, “Block Adaptive Prediction of Color Television Signals,” Electron. Lett. 1980, 16, pp. 226-228.
• H. Gharavi and R. Steele, “Non-Integer Sampling to Subcarrier Frequency Ratios in DPCM of Pal Signals,” Electron. Lett., 1979, 15,16, pp. 483-484.
• H. Gharavi and R. Steele, “Predictors for Intraframe Encoding of PAL Picture Signals,” IEE Proc. F., Communications, Radar and Signal Proc., 1980, 127, (3), pp. 205-211.

Referred Conference Proceedings

• H. Gharavi and S. Gao, “3-D Segmentation and Motion Estimation of Range Data for Crash Prevention,” The 2007 IEEE Intelligent Vehicles Symposium-IV'07, June 2007, Istanbul, Turkey.
• H. Gharavi and S. Gao, “Recursive Motion Estimation of Range Image,” IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP-07), pp. 673-674, April 2007.
• B. Yan and H. Gharavi, “Power Control in Multihop CSMA,” Proceedings of the IEEE 2006 International Symposium on World of Wireless, Mobile and Multimedia Networks (WoWMoM06), June 2006, pp. 432 - 434.
• B. Yan and H. Gharavi, “Multi-path Multi-Channel Routing Protocol,” IEEE International Symposium on Network Computing and Applications (IEEE NCA06), July 2006, Cambridge, MA USA.
• S. Gao and H. Gharavi, “Multiple Description Video Coding over Multiple Path Routing Networks,” IEEE International Conference on Digital Telecommunications (ICDT'06), August 2006, France.
• K. Ban and H. Gharavi, “Group-based Ad-hoc Network for Multimedia Communications,” IEEE International Symposium on Personal Indoor and Mobile Radio Communications (PIRMC 2005), Vol. 4, September 2005, pp. 2227- 2231.
• H. Gharavi and K. Ban, “Dynamic Packet Control for Video Communications over Ad-hoc Networks,” 2004 IEEE International Conference on Communications (ICC 2004), Paris, France, June 2004.
• H. Gharavi, K. Ban, and J. Cambiotis, “RTCP-Based Frame-Synchronized Feedback Control for IP-Video Communications over Multipath Fading Channels,” 2004 IEEE International Conference on Communications (ICC 2004), Paris, France, June 2004.
• D. J. Shyy, H. Gharavi, and K.Ban, “System Design Tradeoff for Supporting Soft Handoff in 3G cdma2000 Networks”, WNCG Wireless Networking Symposium conference, Austin, Texas, October 22-24, 2003.
• H. Gharavi and K.Ban, “ Cross-layer Feedback Control for Video Communications via Mobile Ad-hoc Networks,” IEEE VTC Conference Proceedings, October 03.
• K. Ban and H. Gharavi (invited paper), “ Video Transmission for Multi-hop Networks Using IEEE 802.11 FHSS,” IEEE International Conference on Image Processing, ICIP 2002, Rochester, NY, September 2002.
• H. Gharavi, F. Chen, R. Wyatt-Millington, K. Ban “Design, Model Implementation, and Evaluations of the CDMA-2000 Reverse-link Using Receiver Antenna Diversity with Maximal-Ratio Combining,” to be published in J RES NATL INST STAN.
• K. Ban and H. Gharavi, “IEEE-802.11 FHSS Receiver Design for Multihop Sensor Applications,” World Wireless Congress, 3Gwireless'2002, San Francisco, May 28-31, 2002.
• H. Gharavi and K. Ban, “ Vision-based Ad-hoc Sensor Networks for Tactical Operations,” World Wireless Congress, 3Gwireless'2002, San Francisco, May 28-31, 2002, pp. 469-474.
• H. Gharavi, “Video Transmission for 3G Mobile Communication Systems,” MILCOM-01, Vol.2, Washington DC, October 2001, pp. 1146- 1151.
• H. Gharavi, R. Millington, and F. Chen, “CDMA-2000 Reverse-link Evaluation,” Proceedings of the IEEE International Conference on Third Generation Wireless and Beyond (3Gwireless'2001), San Francisco, May 2001, pp. 78-83.
• M.K. Kolotos, M.E. Woodward, H. Gharavi, “A multipriority QAM transmission system for mobile video applications,” Proceedings of 8th International Conference on Telecommunications Systems Modeling and Analysis, Nashville, USA, March 2000, pp. 436-441.
• M.K. Kolotos, M.E. Woodward, H. Gharavi, “A Multichannel Transmission System Using MPEG-2 for vehicular applications,” IEEE Vehicular Technology Conference (VTC), Tokyo, Japan, June 2000, pp. 838-844.
• H. Gharavi and W. Y. Ng, “H.263 Compatible Video Transmission,” Proceedings IEEE First International workshop on wireless Proceedings, Loughborough University, U.K., September 1996. p.p.115-121.
• H. Gharavi and C. I. Richards, “Efficient Partitioning of Coded Video Bitstreams for Multi-Channel Wireless Transmission,” Proceedings IEEE First International workshop on wireless Proceedings, Loughborough University, U.K., September 1996. p.p.105-109
• H. Gharavi, “Multi-resolution video coding for broadband access networks,” invited paper, Proceedings, SPIE conference, Standards and Common Interfaces for Video Information Systems, Philadelphia, October 1995, pp. 130-145.
• H. Gharavi, “Multi-Resolution Video Distributions,” Proc International Workshop on Packet Video, Portland, Oregon, September, 1994.
• H. Gharavi, “Advances in Video Technology,” Invited Paper, Proc. EUSIPCO-94, Edinburgh, Scotland, September, 1994.
• H. Gharavi and M.H. Partovi, “Video Coding and Distribution over ATM for Multipoint Teleconferencing,” Proc. IEEE, GLOBECOM, Houston, Texas, Dec. 1993, pp. 1-7.
• R. Stedman, R., Steele, H. Gharavi, and L. Hanzo, “A 22K Bd Mobile Video Telephone Scheme,” Proc. IEEE Vehicular Technology Conference, Denver, Colorado, May 1992.
• H. Gharavi, “HDTV-Conferencing in ATM Environment,” Invited paper, Western Communications Forum, WCF 91 Proceedings, Phoenix, Arizona, February 1991.
• H. Gharavi, “HDTV Conferencing for BISDN,” Invited Paper, National Communications Forum, NCF 90 Proceedings, Vol. 44, Illinois, October 1990, pp. 811-816.
• H. Gharavi, “Subband based CCITT Compatible Video Coding,” IEEE GLOBECOM'90, San Diego, California, December 1990, pp. 508.4.1-508.4.4
• H. Gharavi and M. Mills, “Two Dimensional Coding of Sub-band Images,” Proc. International Picture Coding Symposium, March 1990, Cambridge, Mass.
• H. Gharavi, “Differential Sub-band Coding of Video Signals,” Proc. IEEE, ICASSP, Glasgow, Scotland, May 1989, pp. 1819-1822.
• H. Gharavi, “Low Bit Rate Video Coding”, Proc. SPIE, California, January 1989.
• H. Gharavi, “A New Approach to Low Bit Rate Video Coding,” Invited Paper, Proc. National Communication Forum, NCF-88, October 1988.
• H. Gharavi, “Hybrid Coding by introducing sub-block approach,” Proc. International Picture Coding Symposium, PCS-88, Sept. 1988, Italy.
• H. Gharavi, “Low Bit Rate Video Teleconferencing on ISDN Subscriber Loops,” Invited Paper, 1988 IEEE Communications Society Workshop, Poco Diablo, AZ, April 1988.
• E. G. Paek, P. R. Liao, and H. Gharavi, “A Derivation of Hopfield-type Neural Network Models,” Proc. Neural Network for Computing Snowbird, Utah, April 1988.
• H. Gharavi, “Sub-band Coding of Color Images Using Differential Vector Quantization Techniques,” Proc. International Picture Coding Symposium, PCS 87, Sweden, June 1987.
• H. Gharavi, “Algorithms for Low Bit-rate Video,” Invited Paper, Workshop on Digital Video, IEEE ISCAS'87, Philadelphia, Pennsylvania, May 1987.
• H. Gharavi and A. Tabatabai, “Application of Two-Dimensional Quadrature Mirror Filtering to the Coding of Monochrome and Color Images,” Proc. IEEE ICASSP'87, Vol. 4, 2384-2387.
• H. Gharavi, and A. Jalali, “Adaptive Hybrid coding for Video Signals,” Proc. IEEE GLOBECOM Conference, Houston, Texas, December 1986, pp. 32.6.1-32.6.5.
• H. Gharavi and A. Tabatabai, “Sub-band Coding of Images Using 2-Dimensional Quadrature Mirror Filtering,” Proc. SPIE, Visual Communications and Image Processing, Cambridge, Massachusetts, September 1986, pp. 51-61.
• H. Gharavi and A. Jalali, “DCT/Conditional Hybrid Coding of Images,” Proc. International Picture Coding Symposium, Tokyo, Japan, 1986.
• H. Gharavi, “An Adaptive Quantizer for Monochrome and Color Images,” Proc. International Picture Coding Symposium, Tokyo, Japan, 1986.
• H. Gharavi, “Conditional Entropy Encoding,” Proc. IERE International Conference on Digital Signal Processing of Signals in Communications, Loughborough, No. 62, April 1985, pp. 213-219.
• H. Gharavi, “Entropy Coding of Images,” Proc. International Picture Coding Symposium, PCS-84, Rennes, France, June 1984.
• H. Gharavi and A. N. Netravali, “CCITT Coding of Grey-Level Pictures,” Proc. International Picture Coding Symposium, April 1983.

Special Issues

• H. Gharavi, K. Prasad, P. Ioannou: Special Issue on Advanced Automobile Technology, PROCEEDINGS of the IEEE, February 2007.
• H. Gharavi and S. Kumar: Special Issue on Sensor Networks & Applications, PROCEEDINGS of the IEEE, August 2003.
• H. Gharavi and L. Hanzo: Special Issue on wireless multimedia communications, PROCEEDINGS of the IEEE, October 1999.
• H. Gharavi and C.N. Judice: Special Issue on Mobile Image/Video Transmission,” Signal Processing: Image Communication, Vol. 12, No. 2, April 1998
• H. Gharavi, H., Yasuda, and T. Meng: Special Issue on Wireless Visual Communications,” IEEE Transactions on CAS for Video Technology, April issue 1996.
• H. Gharavi, P. Pirsch, and H. Yasuda, “Special Issue on VLSI Implementation for Digital Image and Video,” IEEE Transactions on CAS, Vol. 36, October 1989.

Book Chapter

• H. Gharavi, “Subband Coding of Video Signals”, Chapter in Subband Image Coding, Edited by J.W. Woods, Kluwer Academic Publisher, 1990.