Patent Document ID: 9432690
Application ID: 13754210
Patent Status: 1

Claim One:
1. A method of video processing comprising: determining, for a search block within a first frame, a relative location of a corresponding block in a second frame with respect to the search block based on comparative searching at a predetermined granularity to produce a motion vector for the search block with a first precision; determining correlation values with respect to the search block for the corresponding block and for at least one block defined at a relative location of less than the predetermined granularity with respect to the corresponding block; and determining a refined motion vector for the search block with a second higher precision based on the relative location of the block having a selected correlation value that is selected from among the correlation values with respect to the corresponding block and the at least one block, wherein the at least one block is produced by up-sampling the corresponding block at less than the predetermined granularity in different directions relative to the corresponding block to generate an alternating pattern of corresponding block pixels and oversampled pixels.