Video decoder

摘要

An image processing apparatus which performs motion compensation prediction image decompression by a small circuit scale. The apparatus comprises: an image memory which is equivalent to a processing region and executes the motion compensation; and an adder. The adder executes interpolation calculation in the event that a reference image is constructed from a motion vector of 1/2 accuracy, and its result therefrom is stored in said image memory. Addition process of the reference image and difference data is processed by the same adder in a time sharing manner.