Image coding system which limits number of variable length code words
US5844611A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 1995 |
| Grant date | Dec 1, 1998 |
| Priority date | — |
| Expiry date | May 30, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/91
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image encoding control system includes an orthogonal transform encoder for carrying out orthogonal transform coding for each block which includes transform coefficients related to a plurality of blocks, each block obtained by dividing one picture of an input image signal into the plurality of blocks, a code control for controlling the transform coefficients obtained for each block so that the number of variable-length code words obtained for each block is equal to or smaller than a predetermined number of variable-length code words, a variable-length encoder for converting the transform coefficients obtained for each block into variable-length code words, and a buffer memory for temporarily storing the variable-length code words output by the variable-length encoder for each block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.