macroblock

Noun

Meaning

(signal processing, video compression) A block of adjacent pixels, typically a rectangular 16×16 block

(archaeology) An area of a dig where there are multiple adjacent block excavations

Related terms

Examples

For clarity, the 8x8 macroblock in this example is magnified by 10x using bilinear interpolation. Source: Internet

A predicted macroblock rarely matches the current picture perfectly, however. Source: Internet

If a match is found, only the direction and distance (i.e. the vector of the motion) from the previous video area to the current macroblock need to be encoded into the inter-frame (P- or B- frame). Source: Internet

Motion vectors (see below) operate solely at the macroblock level. Source: Internet

P-frames have one motion vector per macroblock, relative to the previous anchor frame. Source: Internet

The difference between a P-frame and its anchor frame is calculated using motion vectors on each macroblock of the frame (see below). Source: Internet

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