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Proceedings Paper

VLSI chip solution for lossless medical imagery compression
Author(s): Jack Venbrux; Pen-Shu Yeh; Gregory C. Zweigle; John F. Vesel
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Paper Abstract

This paper describes two VLSI implementations that provide an effective solution to compressing medical image data in real time. The implementations employ a lossless data compression algorithm, known as the Rice algorithm. The first chip set was fabricated in 1991. The encoder can compress at 20 Msamples/sec and the decoder decompresses at the rate of 10 Msamples/sec. The chip set is available commercially. The second VLSI chip development is a recently fabricated encoder that provides improvements for coding low entropy data and incorporates features that simplify system integration. A new decoder is scheduled to be designed and fabricated in 1994. The performance of the compression chips on a suite of medical images has been simulated. The image suite includes CT, MR, angiographic images, and nuclear images. In general, the single-pass Rice algorithm compression performance exceeds that of two-pass, lossless, Huffman-based JPEG. The overall compression performance of the Rice algorithm implementations exceeds that of all algorithms tested including arithmetic coding, UNIX compress, UNIX pack, and gzip.

Paper Details

Date Published: 1 May 1994
PDF: 12 pages
Proc. SPIE 2164, Medical Imaging 1994: Image Capture, Formatting, and Display, (1 May 1994); doi: 10.1117/12.174041
Show Author Affiliations
Jack Venbrux, Univ. of New Mexico (United States)
Pen-Shu Yeh, NASA Goddard Space Flight Ctr. (United States)
Gregory C. Zweigle, Advanced Hardware Architectures (United States)
John F. Vesel, Picker International Inc. (United States)


Published in SPIE Proceedings Vol. 2164:
Medical Imaging 1994: Image Capture, Formatting, and Display
Yongmin Kim, Editor(s)

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