Data compression research.
In current electronic systems the amount of power needed by the memory components can represent a large percentage of overall power requirements, and while modern DRAM memories offer very low idle power states, the reduction in active power is much more modest. Motivated by these observations, this paper presents a system architecture in which a hardware lossless data compressor/decompressor is connected to the application processor present in the same chip
Learn about this open-source project and get the VHDL core.
Peng Sun, Jose Nunez-Yanez, Optimizing Memory Power in Hybrid ARM-FPGA Chips With Lossless Data Compression, FPGAworld 2015, Stockholm, Sep 9th, Sweden, 2015
J.L Nunez-Yanez, V.A.Chouliaras, 'Gigabyte per Second Streaming Lossless Data Compression Hardware Based on a Configurable Variable-Geometry CAM Dictionary', IEE Proceedings - Computers and Digital Techniques, Vol. 153, Issue: 1, pp. 47-58, January 2006
J.L Nunez-Yanez, S. Jones, 'Gbit/Second Lossless Data Compression Hardware', IEEE Transactions in VLSI Systems (TVLSI), Vol. 11, No. 3, pp. 499-510, June, 2003.
VHDL core used in the papers and demo software
Learn about the benefits of data compression in machine health monitoring.
Y. Zhang, P. Hutchinson, N. A.J. Lieven, J. Nunez-Yanez,Adaptive event-triggered anomaly detection in compressed vibration data,Mechanical Systems and Signal Processing,Volume 122,Pages 480-501,2019
Y. Zhang, P. Hutchinson, N. A. J. Lieven and J. Nunez-Yanez, Optimal compression of vibration data with lifting wavelet transform and context-based arithmetic coding, (EUSIPCO), 2017.
Lossless data compression hardware for image and general data
Jose L. Nunez-Yanez, Xiaolin Chen, Nishan Canagarajah, Raffaele Vitulli,,,Statistical Lossless Compression of Space Imagery and General Data in a Reconfigurable Architecture', 2008 NASA/ESA conference on Adaptive Hardware Systems, pp. 172-178, 22-25 June, Noordwijjk, Netherlands, 2008.
Xiaolin Chen, Nishan Canagarajah, Jose L. Nunez-Yanez, 'Hardware Architecture for Lossless Image Compression Based on Context-based Modeling and Arithmetic Coding', IEEE International SOC conference, September, Hsinchu Taiwan, pp. 251-254, 2007.
Trevor Spiteri& Nunez-Yanez, Jose. (2012). Scalable video coding with multi-layer motion vector palettes. IET Image Processing. 6. 1319-1330. 10.1049/iet-ipr.2012.0048.