Research Page of Dr. W. David Pan

Dr. W. David Pan is an Assistant Professor of Electrical and Computer Engineering at the University of Alabama in Huntsville. He received his Ph.D. degree in Electrical Engineering from the University of Southern California in 2002, and his M.S. degree in Computer Engineering from the University of Louisiana at Lafayette in 1998. His main research interests are in computationally efficient techniques for image/video compression, highly efficient distributed source-coding techniques, and their applications in information assurance and pattern recognition.

He is the recipient of ETRI Journal Paper of Year 2006 Award for one of his journal papers that was published in June 2006 issue of this international journal. He received the College of Engineering Outstanding Junior Faculty Award from the University of Alabama in Huntsville in 2008. He was awarded the Office of Naval Research (ONR) Summer Faculty Research Fellowship in 2008. He has over 60 refereed journal and conference publications. He is a senior member of IEEE.

Contact Info:

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EB 263A

Dept. of Electrical and Computer Engineering

Univ. of Alabama in Huntsville

Huntsville, AL 35899

Email: dwpan@ece.uah.edu

Tel: (256)824-6642

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Journal Publications:

W. D. Pan and M. Nalasani, “Reversible Logic,” IEEE Potentials, pp. 38-41, February / March, 2005.

S. M. Yoo, D. Kotturi, W. D. Pan, and J. Blizzard, "An AES Crypto Chip Using A High-Speed Parallel Pipelined Architecture," Microprocessors and Microsystems, vol. 29, no. 7, pp. 317-326, Sep. 2005.

T. Davis, S.-M. Yoo, and W. D. Pan, “Dissecting a Network-Based Education System,” Technological Horizons in Education (T.H.E.) Journal, Sep. 2005.

A. M. Shams, A. Chidanandan, W.D. Pan, and M. A. Bayoumi, “NEDA: A Low-Power High-Performance DCT Architecture,” IEEE Trans. on Signal Processing, vol. 54, no. 3, pp. 955 - 964, March 2006.

W. D. Pan, and S.-M. Yoo, “Fano Decoding with Timeout: Queueing Analysis,” ETRI Journal, vol. 28, no. 3, pp. 301-310, June 2006.

R. A. Al-Na'mneh, W. D. Pan, and S.-M. Yoo, “Two Parallel 1-D FFT algorithms without All-to-All Communication,” Parallel Processing Letters, vol. 16, no. 2, pp. 153-164, June 2006.

R. A. Al-Na'mneh, W. D. Pan, and S.-M. Yoo, “Efficient Adaptive Algorithm for Transposing Small and Large Matrices on Symmetric Multiprocessors,” International Journal Informatica, vol. 17, no. 4, pp. 535-550, 2006.

Y. Kanamori, S.-M. Yoo, W. D. Pan, and F. T. Sheldon, “A Short Survey on Quantum Computers,” International Journal of Computers and Applications, vol. 28, no. 3, pp. 227-233, 2006.

C.-H. Park, S.-M. Yoo, H. Choo, and W. D. Pan, "Multi-User Data Multiplexing for Digital Multimedia Broadcasting," Computer Communications, vol. 29, no. 18, pp. 3970 – 3975, 2006.

W. D. Pan, S.-M. Yoo, M. Nalasani, and P. Cox, “Efficient Local Transformation Estimation Using Lie Operators,” Information Sciences, vol. 177, no. 3, pp. 815-831, February 2007.

W. D. Pan, S.-M. Yoo, C.-H. Park, “Complexity Accuracy Tradeoffs of Lie Operators in Motion Estimation,” Pattern Recognition Letters, vol. 28, no. 7, pp. 778-787, May 2007.

R. A. Al-Na'mneh and W. D. Pan, “Five-Step FFT Algorithm with Reduced Computational Complexity,” Information Processing Letters, vol. 101, no. 6, pp. 262–267, March 2007.

R. A. AL-Na'mneh, W. D. Pan, and S.-M. Yoo, “Parallel Implementation of 1-D Fast Fourier Transform without Inter-Processor Communication,” International Journal of Computers and Applications, vol. 29, no. 2, 2007.

H. Alzoubi, and W. D. Pan, “Reducing the Complexity of MPEG-4 Global Motion Estimation Using Pixel Subsampling, “ IET Electronics Letters, vol. 44, no. 1, pp. 20 – 22, January 2008.

W. D. Pan, and A. Ortega, “Adaptive Computation Control of Variable Complexity Fano Decoders,” IEEE Trans. on Communications (Accepted for publication).

H. Alzoubi, and W. D. Pan, “Fast Global Motion Estimation Algorithm Using Pixel Subsampling,”Information Sciences (to appear).

Conference Publications:

H. Alzoubi, and W. D. Pan, “Fast and Accurate Global Motion Estimation by Combining Pixel Subsampling and Outlier Rejection,” Proc. of Picture Coding Symposium (PCS’07), Lisbon, Portugal, November 2007.

J. Cai, and W. D. Pan, “Particle Swarm Optimization Algorithm For Block Based Motion Estimation”, Proc. of Huntsville Simulation Conference (HSC’07), Huntsville, Alabama, October 2007.
H. Alzoubi and W. D. Pan, “Efficient Global Motion Estimation Using Fixed and Random Subsampling Patterns,” in Proc. of IEEE International Conference on Image Processing, San Antonio, TX, September 2007.
H. Alzoubi, and W. D. Pan, “Very Fast Global Motion Estimation using Partial Data”, in Proc. of the 32nd International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Honolulu, Hawaii, April, 2007.
H. Alzoubi, and W. D. Pan, “Fast Global Motion Estimation using Partial Data”, in Proc. of Huntsville Simulation Conference (HSC’06), Huntsville, Alabama, Nov. 2006.
H. Alzoubi, and W. D. Pan, “Floating-Point Genetic Algorithm for Translational Motion Estimation”, in Proc. of Huntsville Simulation Conference (HSC’06), Huntsville, Alabama, Nov. 2006.
J. Cai, and W. D. Pan, “Simulation of Fast Motion Estimation based on a Modified Particle Swarm Optimization Method”, in Proc. of Huntsville Simulation Conference (HSC’06), Huntsville, Alabama, Nov. 2006.
R. Al Na’mneh and W. D. Pan, “Hybrid MPI / Pthread Implementation of 1-D FFT on SMP,” in Proc. of IEEE Southeastern Symposium on System Theory, Cookeville, TN, March 2006.

R. Al Na’mneh and W. D. Pan, “Two-Step 1-D Fast Fourier Transform without Inter-Processor Communications,” in Proc. of IEEE Southeastern Symposium on System Theory, Cookeville, TN, March 2006.

K. Darabkh and W. D. Pan, “Stationary Queue-Size Distribution for Variable Complexity Sequential Decoders with Large Timeouts,” in Proc. of 44th ACM Southeast Conference, Melbourne, Florida, March 2006.

K. Darabkh and W. D. Pan, “Queueing Simulation for Fano Decoders with Finite Buffer Capacity,” in Proc. of 9th Communications and Networking Simulation Symposium (CNS’06), Huntsville, Alabama, April 2006.
J. Cai, W. D. Pan and P. G. Cox, “Simulation of Distributed Coset Coding of Correlated Images,” in Proc. of Huntsville Simulation Conference (HSC’05), Huntsville, Alabama, Nov. 2005.
K. Darabkh and W. D. Pan, “Queue-Size Distribution for Fano Decoders,” in Proc. of Huntsville Simulation Conference (HSC’05), Huntsville, Alabama, Nov. 2005.

K. Darabkh and W. D. Pan, “Queueing Simulation for Sequential Decoders with Timeout,” in Proc. of Huntsville Simulation Conference (HSC’05), Huntsville, Alabama, Nov. 2005.

P. Paritala and W. D. Pan, “Higher Order Statistical Analysis of Steganographic Images using Wavelet Transforms,” in Proc. of Huntsville Simulation Conference (HSC’05), Huntsville, Alabama, Nov. 2005.

A. Watkins and W. D. Pan, “Simulation of Hidden Message Length Estimation of LSB Steganography,” in Proc. of Huntsville Simulation Conference (HSC’05), Huntsville, Alabama, Nov. 2005.
M. Nalasani and W. D. Pan, “Object Transformation Estimation with Low Complexity,” Proc. of IEEE Southeastern Symposium on System Theory, Tuskegee, Alabama, March 2005. pp. 292 – 296.
A. G. Veeravalli, M. Nalasani and W. D. Pan, “Covariance Analysis of Non-Translational Motion-Compensated,” Proc. of IEEE Southeastern Symposium on System Theory, Tuskegee, Alabama, March 2005. pp. 462 – 465.
R. Al Na’mneh, W. D. Pan, and R. Adhami, “Parallel Implementation of 1-D Fast Fourier Transform without Inter-processor Communication,” Proc. of IEEE Southeastern Symposium on System Theory, Tuskegee, Alabama, March 2005. pp. 307 – 311.
A. G. Veeravalli, W. D. Pan, R. Adhami, and P. G. Cox, “A Tutorial on Using Hidden Markov Models for Phoneme Recognition,” Proc. of IEEE Southeastern Symposium on System Theory, Tuskegee, Alabama, March 2005. pp. 154 – 157.
Al Na’mneh, W. D. Pan, and R. Adhami, “Communication Efficient Adaptive Matrix Transpose Algorithms for FFT on Symmetric Multiprocessors,” Proc. of IEEE Southeastern Symposium on System Theory, Tuskegee, Alabama, March 2005. pp. 312 – 315.
M. Nalasani and W. D. Pan, “Performance Evaluation of MPEG-2 Codec with Accurate Motion Estimation,” in Proc. of IEEE Southeastern Symposium on System Theory, Tuskegee, Alabama, March 2005. pp. 287 – 291.
W. D. Pan, “Computation and Buffer Analysis of Fano Decoders in Portable Mobile Computing,” in Proc. of UAH Young Faculty Research Proceedings, Dec. 2004.
M. Nalasani and W. D. Pan, “Transformation Estimation with Sub-Pixel Accuracy,” in Proc. of Huntsville Simulation Conference (HSC’04), Huntsville, Alabama, Nov. 2004.
A. G. Veeravalli, W. D. Pan, R. Adhami and P. G. Cox, “Phoneme Recognition using Hidden Markov Models,” in Proc. of Huntsville Simulation Conference (HSC’04), Huntsville, Alabama, Nov. 2004.
W. D. Pan and S.-M Yoo, “Queuing Analysis of Sequential Decoders with Buffers,” in Proc. of Huntsville Simulation Conference (HSC’04), Huntsville, Alabama, Nov. 2004.

R. A. Al Na’mneh and W. D. Pan, “Performance analysis of parallel algorithms for one dimensional FFT on symmetric multiprocessors,” Proc. International Conference on Parallel and Distributed Processing Techniques and Applications, pp. 80 – 83, Las Vegas, Nevada, June 2004.

R. A. Al Na’mneh and W. D. Pan, “Efficient and scalable parallel processing methods for transposing matrices on symmetric multiprocessors,” Proc. International Conference on Parallel and Distributed Processing Techniques and Applications, pp. 84 – 89, Las Vegas, Nevada, June 2004.

M. Nalasani and W. D. Pan, “Accuracy, rate and complexity tradeoffs of transformation estimation using Lie operators,” Proc. International Conference on Imaging Science, Systems, and Technology, pp. 210-216, Las Vegas, Nevada, June 2004.

Z. Pan, W. D. Pan, and A. Milenkovic, “Complexity-Distortion Tradeoffs in Variable Complexity 2-D DCT,” in Proc. of the 42nd ACM Southeast Conference, pp. 460-465, Huntsville, Alabama, April 2004.

R. A. Al Na’mneh, W. D. Pan, and B. E. Wells, “Two parallel implementations for one dimensional FFT on symmetric multiprocessors,” in Proc. of the 42nd ACM Southeast Conference, Huntsville, Alabama, April 2004.

M. Nalasani, W. D. Pan, and S.-M. Yoo, “Motion Estimation with integrated motion models,” in Proc. of the 42nd ACM Southeast Conference, Huntsville, Alabama, April 2004.

W. D. Pan, “Quantization of Fano metrics using relative entropy in modeling channels with memory,” in Proc. of IEEE Southeastern Symposium on System Theory, Atlanta, Georgia, March 2004.

M. Nalasani and W. D. Pan, “On the complexity and accuracy of motion estimation using Lie operators,” in Proc. of IEEE Southeastern Symposium on System Theory, Atlanta, Georgia, March 2004.
W. D. Pan, “Accurate motion estimation in very low bit-rate video coding using low-complexity linear motion models,” in Proc. of UAH Young Faculty Research Proceedings, Dec. 2003.

W. D. Pan, “Improved buffer control of Fano decoders using channel memory,” in Proc. of IEEE Globecom Conference, San Francisco, California. Dec. 2003.
W. D. Pan and M. Nalasani, “Accurate motion estimation with linear motion models in video compression,” in Proc. of Huntsville Simulation Conference, Huntsville, Alabama, Oct. 2003.

W. D. Pan, “Accurate metric calculation in simulating Fano decoders,” in Proc. of Huntsville Simulation Conference, Huntsville, Alabama, Oct. 2003.

W. D. Pan and S.-M. Yoo, “Computation control of distributed image decoders in mobile computing,” in Proc. of 16th International Conference on Parallel and Distributed Computing Systems, Reno, Nevada, August 2003.
W. D. Pan, Basso and Bottou, “An iterative algorithm for accurate motion estimation under very low bit rate constraint in video coding,” in Proc. of International Signal Processing Conference (ISPC), Dallas, Texas. April 2003.

W. D. Pan, S.-M. Yoo and R. Adhami, “Prediction of Rayleigh fading channels based on hidden Markov modeling of sequential channel decoding complexity,” in Proc. of 35^th IEEE SSST, Morgantown, West Virginia, March 2003.

A. M. Shams, W. D. Pan, A. Chidanandan and M. A. Bayoumi, “A low power high performance distributed DCT architecture,” IEEE Computer Society Annual Symposium on VLSI (ISVLSI 2002), April 2002, Pittsburgh, Pennsylvania.

W. D. Pan and A. Ortega, "Buffer Control for Variable Complexity Fano Decoders," in proceedings of IEEE Globecom 2001, pp.176-180, Nov. 2001, San Antonio, Texas.
W. D. Pan, A. Ortega, I. Hajj-Ahmad and R. Sannino, "Proxy-Based Approaches for IDCT Acceleration," in proceedings of IS&T and SPIE Conf. on Visual Communications and Image Processing (VCIP 2001), pp.625-636, January 2001, San Jose, California.
W. D. Pan, "A Fast 2-D DCT Algorithm via Distributed Arithmetic Optimization," in proceedings of International Conference on Image Processing (ICIP 2000), pp. 114-117, September 10-13, 2000, Vancouver, BC, Canada.
A. M. Shams, W. D. Pan, A. Chandanandan, and M. A. Bayoumi, "A High-Performance 1D-DCT Architecture," in proceedings of IEEE International Symposium on Circuits and Systems (ISCAS 2000), pp.521-524, May 28-31, 2000, Geneva, Switzerland.
W. D. Pan and Ortega, "Complexity-scalable Transform Coding using Variable Complexity Algorithms," in Proc. of Data Compression Conference (DCC'00), pp.263-272, March 2000. Snowbird, Utah.
W. D. Pan, A. M. Shams and M. A. Bayoumi, "NEDA: A New Distributed Arithmetic Architecture and its Application to One Dimensional Discrete Cosine Transform," in Proc. of IEEE Workshop on Signal Processing Systems Design and Implementation (SiPS'99), pp.159-168, Taipei, Taiwan, Oct. 20-22, 1999.
W. D. Pan and Z. Xiao, "Improved Motion-Compensation Coding Algorithm for an MPEG Video-Codec," in Proc. of International Conference on Neural Networks and Signal Processing (ICNNSP'94), pp.908-912, Guangzhou, China, Nov.1-3, 1994.

Reviewer:

o IEEE Transactions on Circuits and Systems-I

o IEEE Transactions on Circuits and Systems for Video Technology

o IEEE Signal Processing Letters

o IEEE Transactions on Signal Processing

o IEEE Transactions on Multimedia

o IEEE Transactions on Image Processing

o ACM Journal of Wireless Networks

o Multimedia System Journal

o Pattern Recognition Letters

o The International Journal for Computers and Their Applications

o International Conference on Parallel and Distributed Computing Systems

o IEEE Vehicular Technology Conference Fall 2003

o IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)

o IEEE International Conference on Image Processing (ICIP)

o IEEE SoutheastCon

o ACMSE Conference