Real time decompression and post-decompress manipulation of compressed full motion video
US5781184A · kind A · utility
Inventors
Key dates
| Filing date | Sep 23, 1994 |
| Grant date | Jul 14, 1998 |
| Priority date | — |
| Expiry date | Sep 23, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/262
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus are provided for real time decompression and post-decompress manipulation of compressed full motion video. A decompressed play-back signal is supplied to a real-time video processing system by way of an adaptor for post-decompress manipulation. The post-decompress manipulations include real-time, interactive geometry transformations and color re-mappings. The adaptor includes a range expansion module for eliminating dead space such as found in CCIR-601 outputs. The adaptor further includes a resampling module for programmably converting the pixels-per-line format of the decompressed play-back signal. The adaptor additionally includes a clip-and-dither module for altering the bits-per-pixel format of the adaptor output signal and for applying a programmably-defined dither to the adaptor output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.