Hybrid coders with motion compensation
| Autor: | K. K. Pang, Chi-Fa Chen |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
Moving parts
Motion compensation Autocorrelation coefficient Covariance matrix business.industry Applied Mathematics Inter frame Computer Science Applications Quarter-pixel motion Artificial Intelligence Hardware and Architecture Motion estimation Signal Processing Computer vision Artificial intelligence business Software Information Systems Coding (social sciences) Mathematics |
| Zdroj: | Multidimensional Systems and Signal Processing. 3:241-266 |
| ISSN: | 1573-0824 0923-6082 |
| Popis: | This paper investigates analytically the effects of motion compensation in a coder based on the observed properties of motion-compensated frame difference (MCFD) signals. The AR(1) processes with a given pixel-to-pixel autocorrelation coefficient will be used to model the intraframe images. For interframe motion, each image is allowed to have both moving and nonmoving parts, with the moving parts executing a range of translational motion. From this mathematical model, the statistical characteristics of MCFD signals are derived. Motion compensation gain, 2-D intraframe transform gain, and hybrid gain are next evaluated to ascertain their suitability for the coding process. Experimental results on the Trevor sequence seem to confirm the model and conform with its analytical results. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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