Apparatus and method for mapping an image to blocks to provide for robust error recovery in a lossy transmission environment
US6311297A · kind A · utility
9Cited by
93References
15Claims
0Family size
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Key dates
| Filing date | Jul 6, 1998 |
| Grant date | Oct 30, 2001 |
| Priority date | — |
| Expiry date | Jul 6, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/426
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for generating blocks of data for an image is described. An image is divided into a localized area. For each localized area, pixels are assigned to blocks following a complementary pattern. The complementary pattern is designed such that most pixels are adjacent to pixels arising from other blocks. The neighboring pixels provide information that is useful for reconstructing data that is lost due to burst error. In one embodiment, this is used in the transmission of video signals over a potentially lossy communications channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.