Patent ID: 6490321
Filing Date: 2002-12-03
Classification: H04N

Abstract:
An apparatus for efficiently encoding a moving picture signal, comprising:a first encoder to encode progressively scanned specific frames that exit for every predetermined period in a moving picture signal to be encoded by intra-frame processing or by uni-directional prediction using other encoded specific frames and by orthogonal transform at the 2n-th (n being an integer) order in a vertical direction for a specific number of blocks of each of the specific frames having a specific number of scanning lines; a predictor to predict a field of an interlaced picture having scanning lines that is half the specific number of scanning lines of the moving picture signal other than the specific frames by using a preceding progressively scanned reference frame and/or an upcoming progressively scanned reference frame, each of the reference frames having the specific number of scanning lines, thus producing a predictive error signal for the field; and a second encoder to encode the predictive error signal for the field by orthogonal transform at the 2nâˆ’1-th order in the vertical direction for each of a specific number of blocks of the field.