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Integer cosine transform for image compression
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Pollara, F. Cheung, K.-M. Shahshahani, M. |
| Copyright Year | 1991 |
| Description | 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 is particularly relevant, since this stage accounts for most (typically over 80 percent) of the computational load. |
| File Size | 485709 |
| Page Count | 9 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19940025116 |
| Archival Resource Key | ark:/13960/t0rr6rk1p |
| Language | English |
| Publisher Date | 1991-05-15 |
| Access Restriction | Open |
| Subject Keyword | Computer Programming And Software Integers Algorithms Image Processing Coding Data Compression Cosine Series Matrices Mathematics Transformations Mathematics Interplanetary Communication Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
