Image Communications Lab at UCLA
 
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Conference Papers




D. Choi, P. Monajemi, S. Kang, and J. Villasenor, "Dealing with Loud Neighbors: The Benefits and Tradeoffs of Adaptive Femtocell Access," to appear at Globecom2008.


M.D. Smith and J.D. Villasenor, "Bitrate Reduction Techniques for Stereoscopic Digital Cinema Distribution," SPIE Electronic Imaging Conference 2008 Visual Communications and Image Processing (VCIP), vol. 6822, paper #682228, pp. 1-9, Jan 2008, San Jose, CA.


D. Lee, H. Kim, S. Tu, M. Rahimi, D. Estrin, and J.D. Villasenor, "Energy-optimized image communication on resource-constrained sensor platforms," In Proc. IEEE/ACM International Conference on Information Processing in Sensor Networks: Special Track on Sensor Platforms, Tools and Design Methods (SPOTS), pp. 216-225, Cambridge, MA, Apr 2007.


M.D. Smith and J. Villasenor, "Constant Quality JPEG2000 Rate Control for Digital Cinema," In Proc. Visual Communication and Image Processing, VCIP 2007, Vol. 6508, No. 1, pp. 65081B, San Jose, CA, Jan 2007.


D. Lee, R.C.C. Cheung, J.D. Villasenor and W. Luk, "Inversion-based hardware Gaussian random number generator: a case study of function evaluation via hierarchical segmentation," Proc. IEEE International Conference on Field-Programmable Technology (FPT), pages 33-40, Bangkok, Thailand, Dec 2006.


R. Osborne and J. Villasenor, "Video Traffic Modeling for Resource-Constrained Clients," Proceedings of Globecom 2006, Nov 2006.


E. Valles, C. Jones, J. Villasenor, and R. Wesel, "Carrier and Timing Synchronization of BPSK via LDPC Code Feedback," Proceedings of the 40th Annual Asilomar Conference on Signals, Systems, and Computers, pp. 2177 - 2181, Pacific Grove, CA, Nov 2006.


Marvin Simon, Esteban Valles, Christopher Jones, Richard Wesel and John Villasenor, "Information-Reduced Carrier Synchronization of BPSK and QPSK Using Soft Decision Feedback," Proceedings of 44th Annual Allerton Conference on Communications, Control and Computing, pp. 446 - 453, Illinois, September 27-29, 2006.


D. Choi, E.P. Kwon, H. Lee, J. Chang, K. Choi, and J. Villasenor "Single-chip Integration of SRAM and Non-volatile Memory using Bit-line Sharing," Proceedings of ESSCIRC 2006, pp. 295-298, Sept 2006.


K. Lakovic, T. Tian, and J. Villasenor, "Iterative Decoder Design for Joint Source-Channel LDPC Coding," IEEE EUROCON 2005, pp. 486-489, Nov. 2005.


E.L. Valles, A.I. Vila Casado, M. Blaum, J. Villasenor, and R.D. Wesel, "Hamming Codes Are Rate-Efficient Array Codes," GLOBECOM 2005, IEEE Volume 3, pp. 1320-1324, St.Louis, MO, Dec. 2005.


H. Kim, J. Wen, and J.D. Villasenor, "Secure Arithmetic Coding Using Interval Splitting," In Proceedings of the 39th Annual Asilomar Conference on Signals, Systems, and Computers, pp. 1218-1221, October 2005, Pacific Grove, CA.


G. Zhang, P.H.W. Leong, D. Lee, J. D Villasenor, R. C.C. Cheung, W. Luk, "Ziggurat-based Hardware Gaussian Random Number Generator," In Proc. IEEE International Conference on Field Programmable Logic and its Applications (FPL), Tampere, Finland, Sep 2005.


M. Smith, J. Villasenor, "Intra-frame JPEG-2000 vs. Inter-frame Compression Comparison: The benefits and trade-offs for very high quality, high resolution sequences," In Proceedings of SMPTE Technical Conference and Exhibition, pages 1-9, October 2004, Pasadena, CA.


T. Tian, C. Jones, and J. Villasenor, "Rate-Compatible Low-Density Parity-Check Codes," In Proceedings of International Symposium on Information Theory, page 153, June-July 2004, Chicago, Illinois.


D. Lee, W. Luk, C. Wang, C. Jones, M. Smith and J.D. Villasenor," A flexible hardware encoder for low-density parity-check codes," Proceedings of IEEE Symposium on Field-Programmable Custom Computing Machines, pages 101-111, April 2004, Napa Valley, CA.


D. Lee, W. Luk, J.D. Villasenor and P.Y.K Cheung, "Hierarchical segmentation schemes for function evaluation," In Proceedings of IEEE International Conference on Field-Programmable Technology, pages 92-99, Dec. 2003, Tokyo, Japan.


C. Jones, A. Matache, T. Tian, J. Villasenor, and R. Wesel, "The Universality of LDPC Codes on Wireless Channels.", Proceedings of the 2003 IEEE Military Communications Conference, October 2003, vol. 1, pp.440-445.


C. Jones, E. Valles, M. Smith, J. Villasenor, "Approximate-MIN constraint node updating for LDPC code decoding," Military Communications Conference, IEEE Volume 1, pages 157 - 162, Oct. 2003.


D. Lee, W. Luk, J.D. Villasenor and P.Y.K Cheung, "Non uniform segmentation for hardware function evaluation," Proceedings of International Conference on Field Programmable Logic and Applications, pages 796-807, LNCS 2778, Sept. 2003, Springer-Verlag, Lisbon, Portugal.


D. Lee, W. Luk, J.D. Villasenor and P.Y.K Cheung, "A hardware Gaussian noise generator for channel code evaluation," Proceedings of IEEE Symposium on Field-Programmable Custom Computing Machines, pages 69-78, April 2003, Napa Valley, CA.


T. Tian, C. Jones, John Villasenor, and Rick Wesel, "Construction of Irregular LDPC Codes with Low Error Floors," IEEE International Conference on Communications, May 2003.


Lakovic K., Villasenor J., "Design considerations for efficient reversible variable length codes," Proceedings of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers (November 2002), pages 262-266, Monterey, CA.


C.Jones, T.Tian, Adina Matache, R.Wesel, J.Villasenor, " Robustness of LDPC Codes in Periodic Fading Channels." IEEE Conference GLOBECOM2002. Nov. 2002, Taipei, Taiwan.


K. Lakovic, J. Villasenor, "On Reversible Variable Length Codes with Turbo Codes, and Iterative Source-Channel Decoding," IEEE International Symposium on Information Theory, Jul. 2002


K. Lakovic, J. Villasenor, "Combining Variable Length Codes and Turbo Codes," IEEE VTS 55th Vehicular Technology Conference, May 7-10, 2002, Birmingham, Alabama.


Adam H. Li, Jay Fahlen, Tao Tian, Luciano Bononi, So-Young Kim, Jeong-Hoon Park, and John Villasenor, "Generic Uneven Level Protection Algorithm for Multimedia Data Transmission over Packet-Switched Networks," IEEE International Conference on Computer Communications and Networks Proceedings, pp. 340-346, Oct. 2001


Ksenija Lakovic and John Villasenor, "Parallel Concatenated Codes for Iterative Source-Channel Decoding," Proceedings of 39th Annual Allerton Conference on Communications, Control and Computing, Oct. 3-5, 2001


T. Tian, A.H. Li, J.Wen and J. Villasenor, "Priority Dropping in Network Transmission of Scalable Video," Proceedings of the 7th IEEE International Conference on Image Processing, vol.3, pp.400-403, Vancouver, BC, Canda, Sep. 2000


M. Luttrell, J.Wen and J. Villasenor, "Trellis-based R-D optimal quantization in H.263+," Proceedings of the 7th IEEE International Conference on Image Processing, vol.3, pp.852-854, Sep. 2000, Vancouver, BC, Canada.


Ksenija Lakovic, Christopher Jones, and John Villasenor, "Investigating Quasi Error Free (QEF) Operation with Turbo Codes" Proceedings of 2nd International Symposium on Turbo Codes and Related Topics, Sep. 2000, Brest, France.


Garcia-Frias, J., Villasenor, J.D., "Low complexity turbo decoding for binary hidden Markov channels," Proceedings of the 2000 IEEE 51st Vehicular Technology Conference, 840-843 (May 2000) Tokyo, Japan


Adam H. Li, Surin Kittitornkun, Yu-Hen Hu, Dong-Seek Park, John Villasenor, "Data Partitioning and Reversible Variable Length Codes for Robust Video Communications," IEEE Data Compression Conference Proceedings, pp.460-469, Mar. 2000


Ksenija Lakovic, John Villasenor, Rick Wesel, "Robust Joint Huffman and Convolutional Decoding," Proceedings of the IEEE VTS 50th Vehicular Technology Conference, pp. 2551-2555, Sep. 19-22, 1999, Amsterdam, The Netherlands.


Javier Garcia-Frias, John D. Villasenor, "Simplified Methods For Combining Hidden Markov Models And Turbo Codes," Proceedings of the IEEE VTS 50 th Vehicular Technology Conference, pp. 1580-1584, Sep. 19-22, 1999, Amsterdam, The Netherlands.


M. Luttrell, J. Villasenor, J.H. Park, and D.S. Park, "A Data Partitioning Based Video Coding Algorithm for Error Prone Channels," International Packet Video Workshop 1999 Download the document in zipped HTML format.


J. Garcia-Frias and J. Villasenor, " Combined Blind Equalization and Turbo Decoding," Proceedings of ICC'99 (Communications Theory Miniconference), Jun. 1999, Vancouver, Canada.


J. Garcia-Frias and J. Villasenor, "Blind Turbo Decoding and Equalization," Proceedings of VTC'99, May 1999, Houston, Texas.


Jiangtao Wen and John Villasenor, "Utilizing Soft Information in Decoding of Variable Length Codes," IEEE Data Compression Conference, pp. 131-139, Mar. 29-31, 1999


J. Garcia-Frias and J. Villasenor, "Exploiting Binary Markov Channels with Unknown Parameters in Turbo Coding," Proceedings of the 1998 IEEE Global Telecommunications Conference, pp. 3244-3249, Nov. 1998, Sydney, Australia.


J. Garcia-Frias and J. Villasenor, " Joint Source Channel Coding and Estimation of Hidden Markov Structures," Proceedings of 1998 IEEE Internations Symposium on Information Theory, p. 201, Aug. 16-21, 1998, MIT, Cambridge, Massachusettes.


P. Meshkat and J. Villasenor, "New Schedules for Information Processing in Turbo Decoding Algorithm," Proceedings of 1998 IEEE International Symposium on Information Theory, p. 118, Aug. 16-21 1998, MIT, Cambridge, Massachusettes.


P. Meshkat and J. Villasenor, "Generalized Versions Turbo Decoding in the Framework of Bayesian Networks and Pearl's Belief Propagation Algorithm," Proceedings of the IEEE 1998 International Conference on Communications, pp. 121-125, Jun. 7-11, 1998, Atlanta, Georgia.


J. Garcia-Frias and J. Villasenor, "Turbo Codes for Binary Markov Channels," Proceedings of the IEEE 1998 International Conference on Communications, pp. 110-115, Jun. 7-11, 1998, Atlanta, Geogia.


J. Garcia-Frias and J. Villasenor, "Turbo Decoding of Hidden Markov Sources with Unknown Parameters," Proceedings of the 1998 IEEE Data Compression Conference, pp. 159-168, Mar. 1998, Snowbird, Utah.


Jiangtao Wen and John Villasenor, "Reversible Variable Length Codes for Efficient and Robust Image and Video Coding," Proceedings of the IEEE 1998 Data Compression Conference, pp. 471-480, Mar. 1998, Snowbird, Utah.


J. Garcia-Frias and J. Villasenor, "Markov Structures in Turbo Decoding," Proceedings of the Winter 1998 Information Theory Workshop, pp. 54-55, Feb. 1998, San Diego, California.


G. Wen and J. Villasenor, "A Class of Reversible Variable Length Codes for Robust Image and Video Coding," Proceedings of the IEEE International Conference on Image Processing, vol. 2, pp. 65-68, Oct. 1997, Santa Barbara, CA.


J. Garcia-Frias, D. Benyamin, and J. Villasenor, "Rate-Distortion Optimal Parameter Choice in a Wavelet Image Communications System," Proceedings of the IEEE International Conf. on Image Proc., vol. 2, pp. 25-28, Oct. 1997, Santa Barbara, California.


J. Garcia-Frias and J. Villasenor, "Joint Source Channel Decoding of Turbo Codes," Proceedings of the 1997 International Symposium on Turbo Codes, pp. 259-262, Sep. 1997, Brest, France.


J. Garcia-Frias and J. Villasenor, " An Analytical Treatment of Channel-Induced Distortion in Run Length Coded Subbands," Proceedings of the IEEE 1997 Data Compression Conference, pp. 52-61, Mar. 1997, Snowbird, Utah.


J. Wen, P. Meshkat, J. Villasenor, "Structured Trees for Lossless Coding of Quantized Wavelet Coefficients," 30th Asilomar Conference on Signals, Systems, & Computers, vol. 2, pp 931-937, Nov. 3-6, 1996, Pacific Grove, CA.


M.J. Tsai, J. Villasenor, and F. Chen, "Stack-run Coding for Low Bit Rate Image Communication," Proceedings of the 1996 IEEE International Conference on Image Processing, vol. 1, pp. 681-684, Sep. 1996, Lausanne, Switzerland.


F. Chen, J. Villasenor and D.S. Park, "A Low-Complexity Rate-distortion Model for Motion Estimation in H.263," Proceedings of the 1996 IEEE International Conference on Image Processing, vol. 2, pp. 517-520, Sep. 1996, Lausanne, Switzerland.


J.Y. Liao and J. Villasenor, "Adaptive Intra Update for Video Coding Under Noisy Channels," Proceedings of the 1996 International Conference of Image Processing, vol. 3, pp. 763-766, Sep. 1996, Lausanne, Switzerland.


J. Villasenor, B. Schoner, K.N. Chia, and C. Zapata, H.J. Kim, C. Jones, S. Lansing, and B. Mangione-Smith, "Configurable Computing Solutions for Automatic Target Recognition," Proceedings of the IEEE Symposium of FPGAs for Custom Computing Machines, pp. 70-79, Apr. 17-19, 1996, Napa, California.


J. Villasenor, R.A. Ergas, and P.L. Donoho, "Seismic Data Compression Using High-Dimensional Wavelet Transforms," Proceedings of the IEEE 1996 Data Compression Conference, pp. 396-405, Apr. 1996, Snowbird, Utah.


B. Belzer and J. Villasenor, "Symmetric Trellis Coded Vector Quantization," Proceedings of the IEEE 1996 Data Compression Conference, pp. 13-22, Apr. 1996, Snowbird, Utah.


J. Villasenor, "Image Compression for Defense Applications--Perspectives and Directions," Proceedings of the 1995 IEEE Military Communications Conference, Nov. 1995, Los Angeles, California.


P.L. Donoho, R.A. Ergas, and J. Villasenor, " High Performance Seismic Trace Compression," Proceedings of the 65th Society of Exploration Geophysicists Conference, pp. 160-163, Oct. 1995, Houston, Texas.


Benjamin Belzer, J. Villasenor, Bernd Girod, "Joint Source Channel Coding of Images with Trellis Coded Quantization and Convolutional Codes," Proceedings of the 1995 IEEE International Conference on Image Processing, vol. 2, pp. 85-88, Oct. 1995.


F. Chen, Z. Gao, and J. Villasenor, "A Lattice Vector Quantizer for Generalized Gaussian Sources," Proceedings of the IEEE Conference on Image Processing, pp. 105-108, Oct. 23-26, 1995.


M.J. Tsai, J.D. Villasenor, A. Chatziioannou, M. Dahlbom, "Positron Emission Tomograph Compression by Using Wavelet Transforms," Proceedings of the IEEE 1995 Nuclear Science Symposium and Medical Imaging Conference, Medical Imaging, Paper No. 7M10, Oct. 21-28, 1995, San Francisco, California.


R. Jain, J. Short, S. Nazareth, L. Kleinrock, and J. Villasenor, "PC-Notebook-Based Mobile Networking: Algorithms, Architectures, and Implementation," Proceedings of the IEEE 1995 International Communications Conference, Jun. 1995, Seattle, Washington.


B. Schoner, C. Jones and J. Villasenor, "Issues in Wireless Video Coding Using Run-time-reconfigurable FPGAs," Proceedings of the IEEE Symposium on FPGAs for Custom Computing Machines, pp. 85-89, Apr. 1995, Napa, California.


J. Villasenor, R. Jain, B. Belzer, W. Boring, C. Jones, "Wireless Video Coding System Demonstration," Proceedings of the IEEE 1995 Data Compression Conference, pp. 448, Mar. 1995, Snowbird, Utah.


Z. Gao, F. Chen, B. Belzer, and J. Villasenor, "A Comparison of the Z, E8, and Leech Lattices for Image Subband Quantization," Proceedings of the 1995 IEEE Data Compression Conference, pp. 312-321, 1995.


B. Schoner, J. Villasenor, S. Molloy, R. Jain, "Techniques for FPGA Implementation of Video Compression," ACM/SIGBA International Symposium on Field-Programmable Gate Arrays, 1995.


H. Chou, F. Chen, Daniel Valentino, L. Huang, J. Villasenor, "Large Scale Implementation of Optimal Image Compression Algorithms," SPIE Medical Imaging, Image Display Conference, SPIE Proceedings vol. 2431. paper 2431-22, Feb. 1995, San Diego, California.


B. Belzer, J. Liao, J. Villasenor, "Adaptive Video Coding for Mobile Wireless Networks," Proceedings of IEEE ICIP-94, pp. 972-976, 1994, Austin, Texas.


M.J. Tsai, J. Villasenor, B.K.T. Ho, "Coronary Angiogram Video Compression," Proceedings of the IEEE 1994 Nuclear Science Symposium and Medical Imaging Conference, Medical Imaging, paper No. 8M65, Oct. 30-Nov. 5, 1994, Norfolk, Virginia.


J. Villasenor, B. Belzer, and J. Liao, "Filter Evaluation and Selection in Wavelet Image Compression," 1994 IEEE Proceedings of the Data Compression Conference, pp. 351-360, Snowbird, Utah.


M.J. Tsai, B.K.T. Ho, J. Villasenor, "Motion Estimation and Wavelet Transform in Angiogram Video Coding," 1993 IEEE Conference Record Nuclear Science Symposium and Medical Imaging Conference, vol. 2, pp.1121-1125, Oct.-Nov. 6 1993.


J. Villasenor, "Full-Frame Compression of Tomographic Images using Discrete Fourier Transform," Proceedings of the IEEE 1993 Data Compression Conference, pp. 195-203, Apr. 1993, Snowbird, Utah.