Apparatus for processing hierarchically-coded image data
US5608862A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 17, 1995 |
| Grant date | Mar 4, 1997 |
| Priority date | — |
| Expiry date | Apr 17, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/532
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Apparatus and method for processing hierarchically-coded image data includes structure and steps for storing hierarchically-coded image data and providing a first image data by decoding the hierarchically-coded image data. The first image data having a first resolution is stored in a display memory. The stored first image data is displayed on a display, and an area within the displayed first image is designated for a second image. The second image data is provided by decoding the hierarchically-coded image data and is representative of an image in the designated area of the first image. The second image data having a second resolution is stored in a portion of the display memory while the memory maintains the first image data stored therein. Finally, the display displays a combined image including the first image having the first resolution and the second image having the second resolution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.