Intensity estimation/compensation for interlaced forward-predicted fields
US8009739B2 · kind B2 · utility
35Cited by
24References
16Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 2, 2004 |
| Grant date | Aug 30, 2011 |
| Priority date | — |
| Expiry date | Jan 17, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/70
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Techniques and tools for intensity compensation for interlaced forward-predicted fields are described. For example, a video decoder receives and decodes a variable length code that indicates which of two reference fields for an interlaced forward-predicted field use intensity compensation (e.g., both, only the first, or only the second). The decoder performs intensity compensation on each of the two reference fields that uses intensity compensation. A video encoder performs corresponding intensity estimation/compensation and signaling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.