Citation
Abstract
This article describes a recently introduced transform algorithm called the integer cosine transform (ICT), which is used in transform-based data compression schemes. The ICT algorithm requires only integer operations on small integers and at the same time gives a rate-distortion performance comparable to that offered by the floating-point discrete cosine transform (DCT). The article addresses the issue of implementation complexity, which is of prime concern for source coding applications of interest in deep-space communications. Complexity reduction in the transform stage of the compression scheme ts particularly relevant, since this stage accounts for most (typically over 80 percent) of the computational load.
Details
- Volume
- 42-105
- Published
- May 15, 1991
- Pages
- 45–53
- File Size
- 367.4 KB