System and method for frame-differencing based video compression/decompression with forward and reverse playback capability
US5298992A · kind A · utility
82Cited by
15References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 8, 1992 |
| Grant date | Mar 29, 1994 |
| Priority date | — |
| Expiry date | Oct 8, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/85
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A process for coding a plurality of compressed video data streams in a time ordered sequence. Each compressed data stream includes coding of frame to frame differences of a video segment, which are represented as a compressed M.times.N exclusive-OR plane of pixel change values and location displacement control values for an output pointer into a decompressed video frame. By coding frame to frame differences in an exclusive-OR values, the replay process is made bidirectional, allowing for both forward and reverse playback of the video segment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.