Access Restriction

Author Yang, K.-M. ♦ Fujiwara, H. ♦ Ishida, Y. ♦ Maruyama, M. ♦ Sakaguchi, T. ♦ Uwabu, H.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1990
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Electricity & electronics ♦ Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Motion estimation ♦ Video codecs ♦ Circuit testing ♦ CMOS technology ♦ Buildings ♦ Parallel processing ♦ Video compression ♦ Pipelines ♦ Computer architecture ♦ Circuit simulation
Abstract The implementation of a versatile full-search block-matching motion estimation chip is described. This chip calculates a motion vector for a block, with a block size of 8*8, 16*16, or 32*32, and outputs the minimum block difference and the block difference of no motion. This chip is one of the most computationally intensive building modules in a video codec. A novel data flow design is reviewed, which allows sequential inputs and performs parallel processing with 100% efficiency. Implementation of this chip is targeted at high performance for real-time video compression. An optimization of the processing elements was performed using pipeline architecture to reduce the cycle time. Each comparison performed in the comparator module was distributed into two cycles to avoid speed bottleneck. Testing circuitry was included to reduce the huge testing patterns. The implementation was carried out by using 1 mu m CMOS technology. Simulation showed that 30 MHz operation can be achieved.<<ETX>>
Description Author affiliation: Bellcore, Morristown, NJ, USA (Yang, K.-M.)
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 1990-05-13
Publisher Place USA
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 255.94 kB

Source: IEEE Xplore Digital Library