Optimized scanning of transform coefficients in video coding
US5500678A · kind A · utility
130Cited by
1References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 18, 1994 |
| Grant date | Mar 19, 1996 |
| Priority date | — |
| Expiry date | Mar 18, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/46
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An improved scanning apparatus and method which allows for increased coding efficiency over conventional zigzag scans is disclosed. The invention advantageously allows for total compatibility with the MPEG-1 standard, and accomodates video sequences which may be composed of both the progressive and interlaced format frames.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.