Patent ID: 8861604

Claim:
A motion picture decoding method for decoding an encoded motion picture signal composed of a plurality of fields with an inter-field motion compensating prediction, comprising: generating a chrominance motion vector from a luminance motion vector according to a calculation method represented by the formula: MVC y =MV y −2 when a reference source field is a top field and a reference destination field is a bottom field, so that the generated chrominance motion vector and the luminance motion vector are thereby parallel, wherein MV y implies a luminance motion vector indicating a vertical direction movement of a luminance pixel of a field image with vector component values of the luminance motion vector displaced by a value of 4, MVC y implies a chrominance motion vector indicating a vertical direction movement of a chrominance pixel of the field image with the vector component values of the chrominance motion vector displaced by a value of 8, and a motion vector is a vector that connects two corresponding pixels between a reference source field and a reference destination field.