NDLI: Reducing energy consumption of video memory by bit-width compression

Content Provider	IEEE Xplore Digital Library
Author	Moshnyaga, V.G. Inoue, K. Fukagawa, M.
Copyright Year	2002
Description	Author affiliation: Dept. of Electron. Eng. & Comput. Sci., Fukuoka Univ., Japan (Moshnyaga, V.G.; Inoue, K.; Fukagawa, M.)
Abstract	A new architectural technique to reduce energy dissipation of video memory is proposed. Unlike existing approaches, the technique exploits the pixel correlation in video sequences, dynamically adjusting the memory bit-width to the number of bits changed per pixel. Instead of treating the data bits independently, we group the most significant bits together, activating the corresponding group of bit-lines adaptively to data variation. The method is not restricted to the specific bit-patterns nor depends on the storage phase. It works equally well on read and write accesses, as well as during precharging. Simulation results show that using this method we can reduce the total energy consumption of video memory by 20% without affecting the picture quality.
Sponsorship	ACM SIGDA IEEE Circuits & Syst. Soc. IEEE Solid-State Circuits Soc. IEEE Electron Devices Soc
Starting Page	142
Ending Page	147
File Size	637256
Page Count	6
File Format	PDF
ISBN	1581134754
DOI	10.1109/LPE.2002.146727
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-08-14
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Association for Computing Machinery, Inc. (ACM)
Subject Keyword	Energy consumption Video compression Random access memory Hardware Energy dissipation Video sequences Permission Power engineering and energy Computer science Encoding
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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