macroblock

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macroblock

A square group of pixels, typically 8x8 or 16x16, that is treated as an entity for compression and decompression. See chroma subsampling and blocking artifacts.
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References in periodicals archive ?
With regard to fixed-size macroblocks in H.264, HEVC provides CU sizes from 64 x 64 to 8 x 8, and their corresponding depths are 0 to 3 respectively.
HEVC and AV1 take the efficiency one step higher by being more content-aware, allocating more bits where there is more motion, and grouping similar macroblocks together in areas that don't have much change, like a flat wall.
Unlike H.264 macroblocks, H.265 processes information in what's called Coding Tree Units (CTUs).
For video encoding, a group of pictures and macroblocks are used where three types of frames are considered.
Full search VBSME architectures [2-9] are able to perform a full motion search on various size of macroblocks.
(4) Every subimage block can be seen as four 2 x 2 macroblocks; each of the macroblocks' edge detection operator in each direction is not the same.
[4] suggested two techniques for mode decision, namely, skip mode decision and adaptive early termination, which utilize both coding information on spatial neighbor macroblocks (MBs) within the same frame and neighbor MBs in the BL.
where m is the number of macroblocks and mv[f.sub.t] is the credible MV matched by referring MBs in frame [F.sub.t-1].
The data in the cache is organized into large blocks, or macroblocks, so that the processor knows where to find whatever data it needs.
The individual image is divided into macroblocks of desired dimensions (i.e.