Dr. Imtiaz A. Taj Dr. Imtiaz Taj is senior faculty member at CASE. He has a significant teaching and industry research experience. His areas of expertise are Image Processing, Computer Vision, Optical Network, Non-linear Optics, Photo refractive Wave Mixing and Free-space Optical Switching. He has published 20 research papers including 11 papers in journals of international repute.

Educational Qualifications

Ph.D in Electronics and Information Engineering from Hokkaido University, Sapporo, Japan. M.S. Electronics and Information Engineering from Hokkaido University, Sapporo, Japan. B.Sc. Electrical Engineering from UET Peshawar. During his Masters and Ph.D. studies in Japan, his main areas of research were Optical Networking, Non-linear Optics, Photo refractive Wave Mixing, Free-space Optical Switching. From his research in the fields of optics, he published 10 papers in journals of international repute and 7 papers in international conferences.

Work Experience

Dr Imtiaz has a work experience of around 7 years including 5 years of post PhD experience in R&D and teaching. During this time he was associated with Communication Enabling Technologies, CARE, and CASE. In Enabling Technologies he worked as a member of VLSI hardware design group and was involved in ASIC design and verification of various components for Avaz VoIP Media Processors. He also worked on the design of MIPS UDI based extension processor optimized for working on G.729a Codec. At CARE he led the Machine Vision and Image Processing Group and worked on an industrial project including development of various robust image processing algorithms and their real-time implementation on FPGA based image processors and dedicated DSP processors. Since Dr. Imtiaz has research experience in fields of both Optics and Computer Vision, his current teaching and research interests are in both of these fields. At CASE he has taught the courses of Computer Vision, Digital Image Processing and Pattern Recognition. At SS-CARE School of Engineering, he is currently teaching the course of "Signals and Systems" and plans to teach courses related to Image Processing and Optics. From May 16, 2001 to January 2003, he was associated with Communication Enabling Technologies, Islamabad, as Member Technical Staff. There he worked as a member of VLSI hardware design group and was involved in ASIC design and verification of various components for Avaz VoIP Media Processors. Since Dr. Imtiaz has research experience in fields of both Optics and Computer Vision, his current teaching and research interests are in both these fields. Currently he is teaching the courses related to Computer Vision in Computer Engineering program of Centre for Advance Studies in Engineering (CASE). He also plans to offer courses related to Optics in SS-CARE SCHOOL OF ENGINEERING School of Engineering such as, Photonics, Optical Communication, Optical Networking, and Laser Optics.

Research Interests

Vision Based Tracking, Vision Based Navigation, Image registration techniques, and Optical Switching

Research Publications

I. A. Taj and T. Mishima, Relative phase between two components of index grating of orthogonally polarized pump FWM in BaTiO3 crystal, The Trans. of IEICE C-I (Japan), Vol. J81-C-I, No.6, pp. 376-378, (June 1998). I. A. Taj and T. Mishima, Orthogonally polarized FWM involving two non-coupling waves in PR medium, J. Opt. Soc. Am. B (U.S.A.), Vol.15, No.7, pp.2132-2142, (1998). I. A. Taj and T. Mishima, A simplified numerical solution and steady state performance of orthogonally polarized four-wave mixing in PR medium, J. Opt. Soc. Am. B (U.S.A.), Vol.16, No.6, pp.924-931, (1999). I. A. Taj, Ping Xie and T. Mishima, Anomalous temporal behaviour of photorefractive wave mixing owing to existence of positive and negative charge carriers, J. Opt. Soc. Am. B (U.S.A.), Vol.17, No.10, pp.1740-1748, (2000). I. A. Taj, Ping Xie and T. Mishima, Fast switching of photo refractive output by applied electric field, Optics Communications (Netherlands), Vol.187, No.1-3, pp. 7-15, (January, 2001). P. Xie, I. A. Taj and T. Mishima, Effect of thermal noise on temporal behaviour of photorefractive effect, J. Opt. Soc. Am. B, (U.S.A.) Vol.18, No.4, pp.479-484, (April 2001). P. Xie, I. A. Taj and T. Mishima, Suppressing the fluctuation of photorefractive output, J. Opt. Soc. Am. B (U.S.A.) Vol.18, No.4, pp.492-496, (April 2001). P. Xie, I. A. Taj and T. Mishima, Reducing fluctuation of signal intensity in optical wave-mixing, IEEE J. of Quant. Elect. (U.S.A.), Vol.37, No.5, pp.664-671, (May 2001). I. A. Taj, P. Xie and T. Mishima, Effect of relative phase of grating components on the temporal behaviour of photorefractive four-wave mixing, J. Opt. Soc. Am. B (U.S.A.), Vol.18, No.10, pp.1490-1496, (October 2001). T. Mishima, P. Xie, K. Koyanagi and I. A. Taj, Demonstration of fast switching of photorefractive four-wave mixing via Pockels effect, Optics Communications (Netherlands), Vol.225, Issue.1-3, pp. 211-214, (September 15, 2003). I. A. Taj and T. Mishima, Controlling the direction of grating vector in cross-polarized FWM under phase matching condition, 1997 IEICE General Conference, March 1997, Kansai Univ., Suita, Japan. I. A. Taj and T. Mishima, 3-D calculations of coupling coefficient including the elasto-optic properties of BaTiO3 crystal, Technical report of IEICE (Japan), OPE 98-152, pp.43-48, (Feb. 1999). I. A. Taj, P. Xie and T. Mishima, Multiple time constants in temporal behaviour of photorefractive wave mixing, Presented in Optics Japan 2000 (Kitami Japan), 8aF21, (October 2000). P. Xie, I. A. Taj and T. Mishima, Physical origin of temporal fluctuation in photorefractive effect, Presented in Optics Japan 2000 (Kitami Japan), 8aF21, (October 2000). I. A. Taj, P. Xie, K. Koyanagi and T. Mishima, Free-space optical switching of photorefractive output by moderate electric fields, presented in COMMAD 2000 (Australia) in December 2000. P. Xie, I. A. Taj, K. Koyanagi and T. Mishima, Suppressing temporal fluctuation of photorefractive output by illumination of an incoherent beam, presented in COMMAD 2000 (Australia) in December 2000. T. Mishima, K. Koyanagi, P. Xie and I. A. Taj, Demonstration of fast switching of photorefractive four-wave mixing by Pockels effect, Conference Proceedings of 2002 IEEE/LEOS Annual Meeting (Scotland), Volume 2, pp.387-388, (10-14 November 2002). M. Ali Tahir, A. Munawar and I. A. Taj, Efficient Use of Multipliers in Microprocessor Implementation of Hamming Distance for Binary Sequence Correlation, INCC (IEEE), June 2004, Lahore, Pakistan.