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Importing Wikidata short description: "System used in computer graphics applications" |
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{{Short description|System used in computer graphics applications}}
A '''Block Matching Algorithm''' is a way of locating matching [[macroblock]]s in a sequence of [[digital video]] frames for the purposes of [[motion estimation]]. The underlying supposition behind motion estimation is that the patterns corresponding to objects and background in a frame of video sequence move within the frame to form corresponding objects on the subsequent frame. This can be used to discover temporal redundancy in the video sequence, increasing the effectiveness of inter-frame [[video compression]] by defining the contents of a macroblock by reference to the contents of a known macroblock which is minimally different.
[[File:Block-matching algorithm.png|thumb|405x405px]]
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