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This algorithm calculates the [[Loss function|cost function]] at each possible ___location in the search window. This leads to the best possible match of the macro-block in the reference frame with a block in another frame. The resulting motion compensated image has highest peak signal-to-noise ratio as compared to any other block matching algorithm.
However this is the most computationally extensive block matching algorithm among all. A larger search window requires greater number of computations.
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==== Optimized hierarchical block matching (OHBM) ====
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