Patent ID: 6061397
Filing Date: 2000-05-09
Classification: H04N

Abstract:
A motion vector detecting device, comprising:a reference block memory for storing image data of a reference block having N.times.M pixels, where N and M are integers greater than or equal to one;a search block memory for storing image data of a search block having said N.times.M pixels;a first matching operational circuit for detecting correlation between said N.times.M pixels of said image data of said reference block stored in said reference block memory and said N.times.M pixels of said image data of said search block stored in said search block memory with integer-pel accuracy;a reference block buffer memory for storing said image data of said reference block;a search block buffer memory for storing said image data of said search block;a second matching operational circuit for detecting correlation between said N.times.M pixels of said image data of said reference block stored in said reference block buffer memory and said N.times.M pixels of said image data of said search block stored in said search block buffer memory with less than or equal to half-pel accuracy, said first matching operational circuit and said second matching operational circuit being operated in parallel.