Apparatus for estimating a half-pel motion in a video compression method
US5694179A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Sep 19, 1996 |
| Grant date | Dec 2, 1997 |
| Priority date | — |
| Expiry date | Sep 19, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/523
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus for estimating a half-pel motion comprising: a memory for storing motion-compensation errors in integer-pel positions; an address generator for generating an address of the integer-pel positions to the memory; an operator for receiving the motion-compensation errors from the memory, and calculating motion-compensation errors in the eight half-pel positions which are on the outskirts of the integer-pel position having a minimum motion-compensation error; and a comparator and half-pel motion vector selector for comparing the motion-compensation errors in the eight half-pel positions with the minimum motion-compensation error in the integer-pel position and selecting a position having a minimum motion-compensation error as a final half-pel motion vector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.