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A high throughput context-based adaptive arithmetic codec for JPEG2000 | IEEE Conference Publication | IEEE Xplore

A high throughput context-based adaptive arithmetic codec for JPEG2000


Abstract:

In JPEG2000 image compression standard, context-based arithmetic coding is adopted for improving compression rate. Efficient and high throughput codec design is required ...Show More

Abstract:

In JPEG2000 image compression standard, context-based arithmetic coding is adopted for improving compression rate. Efficient and high throughput codec design is required for handling high-resolution images. We propose an efficient architecture for context-based adaptive arithmetic coding, which can achieve high throughput performance. Based on parallel leading zeros detection and bit-stuffing handling, a symbol can be encoded and decoded within one cycle. Therefore, throughput rate can be increased as high as codec operating frequency. The modified encoding and decoding flows are compatible with JPEG2000 standard. For 0.35/spl mu/m IP4M CMOS technology, encoding and decoding rate can run up to 200 M symbol/sec and 175 M symbol/sec respectively. They only cost 6.8 K and 9.8 K gate count. These high throughput performances can meet high-resolution real time application requirement.
Date of Conference: 26-29 May 2002
Date Added to IEEE Xplore: 07 August 2002
Print ISBN:0-7803-7448-7
Conference Location: Phoenix-Scottsdale, AZ, USA

References

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