21 September 1994 Adaptive subregion variable shape block compensated prediction
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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, 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
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