Motion compensating coder employing an image coding control method
US5333012A · kind A · utility
107Cited by
1References
14Claims
0Family size
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Key dates
| Filing date | Oct 14, 1992 |
| Grant date | Jul 26, 1994 |
| Priority date | — |
| Expiry date | Oct 14, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/152
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A motion compensating coder which includes a control section for setting quantizer step size accounts for both the buffer occupancy and the texture of the image being coded. The coding control method, using well-accepted assumptions relating to the human visual sensitivity to quantization distortion in an image, employs a recursive strategy that maintains a coding rate which closely approximates the number of target bits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.