Displacement measurement and its application in interframe image coding
Abstract
A new technique for estimating interframe displacement of small blocks with minimum mean square error is presented. An efficient algorithm for searching the direction of displacement has been described. The results of applying the technique to two sets of images are presented which show 8-10 dB improvement in interframe variance reduction due to motion compensation. The motion compensation is applied for analysis and design of a hybrid coding scheme and the results show a factor of two gain at low bit rates.
- Publication:
-
IEEE Transactions on Communications
- Pub Date:
- December 1981
- Bibcode:
- 1981ITCom..29.1799J
- Keywords:
-
- Data Compression;
- Displacement Measurement;
- Image Motion Compensation;
- Image Processing;
- Signal Encoding;
- Video Communication;
- Algorithms;
- Design Analysis;
- Root-Mean-Square Errors;
- Satellite Transmission;
- Television Transmission;
- Transmission Efficiency;
- Variance (Statistics);
- Communications and Radar