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Proceedings Paper

Hardware implementation of LOTRRP compression for real-time image compression
Author(s): Marc W. Crooks; Charles Capps; Eric Hawkins; Michael Wesley
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Paper Abstract

Lapped Orthogonal Transforms (LOT) are becoming more widely used in image coding applications for image transmission and archival schemes. Previously sponsored U.S. Army Missile Command research has developed a LOT Recursive Residual Projection (RRP) that uses the following multiple bases functions: Discrete Cosine Transform (DCT), Discrete Walsh Transform (DWT), and Discrete Slant Transform (DST). For high compression ratios the LOTRRP was shown no outperform the single bases transforms at the cost increased computations. The work presented in this paper describes a VHSIC Hardware Description Language (VHDL) design of the LOTDCT, LOTDWT, and LOTDST targeted for implementation on Application Specific Integrated Circuits (ASICs). This hardware solution was chosen to compress RS-170 standard video for real-time image transmission on a very low bandwidth packetized data link.

Paper Details

Date Published: 13 March 1996
PDF: 7 pages
Proc. SPIE 2669, Still-Image Compression II, (13 March 1996); doi: 10.1117/12.234770
Show Author Affiliations
Marc W. Crooks, U.S. Army Missile Command (United States)
Charles Capps, Nichols Research Corp. (United States)
Eric Hawkins, Nichols Research Corp. (United States)
Michael Wesley, Nichols Research Corp. (United States)


Published in SPIE Proceedings Vol. 2669:
Still-Image Compression II
Robert L. Stevenson; Alexander I. Drukarev; Thomas R. Gardos, Editor(s)

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