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A Fully Parallel Vector-Quantization Processor for Real-Time Motion-Picture Compression
A Fully Parallel Vector-Quantization Processor for Real-Time Motion-Picture Compression
- Source :
- IEEE Journal of Solid-State Circuits. 34(6):822-830
- Publication Year :
- 1999
- Publisher :
- Institute of Electrical and Electronics Engineers, 1999.
-
Abstract
- A vector-quantization (VQ) processor system has been developed aiming at real-time compression of motion pictures using a 0.6-/spl mu/m triple-metal CMOS technology. The chip employs a fully parallel single-instruction, multiple-data architecture having a two-stage pipeline. Each pipeline segment consists of 19 cycles, thus enabling the execution of a single VQ operation in only 19 clock cycles. As a result, it has become possible to encode a full-color picture of 640/spl times/480 pixels in less than 33 ms, i.e., the real-time compression of moving pictures has become available. The chip is scalable up to eight-chip master-slave configuration in conducting fully parallel search for 2-K template vectors. The chip operates at 17 MHz with a power dissipation of 0.29 W under a power-supply voltage of 3.3 V.
Details
- Language :
- English
- ISSN :
- 00189200
- Volume :
- 34
- Issue :
- 6
- Database :
- OpenAIRE
- Journal :
- IEEE Journal of Solid-State Circuits
- Accession number :
- edsair.doi.dedup.....2e83926f870e2df77c6e3f5d2810de4c