Digital image data storage, data transfer and data broadcast apparatus and method
US6266081A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 1997 |
| Grant date | Jul 24, 2001 |
| Priority date | — |
| Expiry date | Feb 19, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/783
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A image signal processing apparatus and method for static image display are provided. Deformation at an edge of an image can be reduced by eliminating a temporal factor and vertical resolution can be retained even after data supplementation. In the process of compressing and decompressing interlace-scanned image data, one of two fields of a frame is selected by a field selector, image data is supplemented and reproduced based on the selected field data by a supplementor, and image data is outputted as a static image without deformation. As a result, more bits can be allocated for encoding by selecting and compressing one field data only and it leads to a higher quality image display. Furthermore, display deformation can be reduced by supplementing high frequency components as zero in the decompression processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.