Variable Size Block Matching Motion Coding
نویسندگان
چکیده
Recently developed object-based video coding schemes require the estimation of motion in arbitrary-shaped objects. A quad-tree structured variable size block matching technique is described. The inherent motion is represented by significantly fewer blocks than if conventional fixed size block matching had been used to provide a similar quality prediction.
منابع مشابه
Variable size block matching motion compensation with applications to video coding - Communications, Speech and Vision, IEE Proceedings I
In block matching type motion compensation schemes, the image is divided into blocks of the same size. For each block a search is conducted in the previous frame to locate the best correspondence. For the scheme to succeed an implicit assumption has to be made that the motion within each block is uniform, an assumption which may not necessarily be correct, and as a result the quality of the pre...
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