Motion vector calculation circuit, with flatness-judgement circuitry, that selects a generated motion vector for output in accordance with a flatness judgement result

摘要: A circuit calculates motion vectors for use in compressing a picture signal. The signal is divided into portions, each portion representing picture. portions include current subdivided blocks. Each block represents rectangular of the picture, and includes luminance signal, first color second prediction derives from vector generating generates vector, vector. respective are generated by performing matching between components corresponding to block. flatness judgment judges whether component, or component not flat and, when one judged be flat, identifies determined as result. Finally, selecting selects response result circuit.