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A Low-Power Block-Matching Cell for Video Compression

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Abstract

This paper describes theimplementation of a block-matching modulewith digital I/O. Algorithmic analysisdemonstrates that the precisionrequirements can be met by a compactcircuit that processes the signal in thecharge domain. The required conversionbetween voltages and charges is achieved byMOS capacitors. As a result, it can befabricated by any inexpensive digital CMOStechnology. A test chip has beenimplemented in a standard CMOS 1.6 μmtechnology and the measured energyconsumption is 1.2 nJ per block match usingan \(8 \times 8\) pixel matrix. Simulations ofthe same cell in 0.35 μm and 0.25 μmCMOS technology are presented, showing thescalability of the approach.

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Tartagni, M., Leone, A. & Guerrieri, R. A Low-Power Block-Matching Cell for Video Compression. Analog Integrated Circuits and Signal Processing 27, 261–273 (2001). https://doi.org/10.1023/A:1011249724522

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  • DOI: https://doi.org/10.1023/A:1011249724522

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