Block implementation of arithmetic coding for image compression

Jun Wei; Marco Ma; Pongskorn Saipetch; Keh-Shih Chuang; Bruce Kuo Ting Ho

doi:10.1117/12.174024

1 May 1994 Block implementation of arithmetic coding for image compression

Jun Wei, Marco Ma, Pongskorn Saipetch, Keh-Shih Chuang, Bruce Kuo Ting Ho

Proceedings Volume 2164, Medical Imaging 1994: Image Capture, Formatting, and Display; (1994) https://doi.org/10.1117/12.174024
Event: Medical Imaging 1994, 1994, Newport Beach, CA, United States

Abstract

The full frame discrete cosine transform (FFDCT) compression method has the capability to eliminate block artifacts that exist in JPEG and MPEG compressed images. Previous FFDCT algorithm used an adaptive bit allocation (BA) method to pack quantized DCT coefficients. In this work, we replaced BA with arithmetic coding (AC) to improve compression performance markedly. We also show that by partitioning the quantized cosine domain much higher arithmetic coding efficiency can be achieved, especially in highly quantized images.

Citation Download Citation

Jun Wei, Marco Ma, Pongskorn Saipetch, Keh-Shih Chuang, and Bruce Kuo Ting Ho "Block implementation of arithmetic coding for image compression", Proc. SPIE 2164, Medical Imaging 1994: Image Capture, Formatting, and Display, (1 May 1994); https://doi.org/10.1117/12.174024

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