21 September 1994 Adaptive subregion variable shape block compensated prediction
Author Affiliations +
Abstract
This paper describes a general approach to interframe video coding using a method of local feature-based motion compensation. Used in conjunction with a DPCM/DCT interframe coding technique, such as the CCITT H.261 algorithm, this technique is computationally viable at real-time rates, employing a simple process of evaluating the nature and content of features and their subsequent displacement. As a secondary means of interframe coding, it has proved possible to introduce mode-value blocking and quantization to speed the motion estimation process and results indicate that as part of a hybrid encoding algorithm, this approach is quite acceptable as no long-term errors are propagated. In addition to a description of feature analysis as a combinational coding method, it is shown that the process of feature extraction and evaluation provides, in its own right, scope to form the basis of a complete, efficient codec of low complexity.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Nigel W. Garnham, Nigel W. Garnham, Mohammad K. Ibrahim, Mohammad K. Ibrahim, } "Adaptive subregion variable shape block compensated prediction", Proc. SPIE 2298, Applications of Digital Image Processing XVII, (21 September 1994); doi: 10.1117/12.186554; https://doi.org/10.1117/12.186554
PROCEEDINGS
10 PAGES


SHARE
Back to Top