ADAPTIVE FRAME INTERPOLATION SYSTEM FOR INTER-FRAME PREDICTION DECODER WITH MOVEMENT COMPENSATION

摘要

PURPOSE:To prevent deterioration in picture quality caused in the case of interpolation through the use of an erroneous moving vector by using selectively a method of interpolation to an interleaved frame through the use of a moving vector based on a predetermined criterion and the method of interpolation with other method not using a moving vector. CONSTITUTION:A means 105 which uses a predicted error signal 107 in a moving vector block from an inter-frame prediction decoding section 102 with moving compensation for each moving vector detection block, calculates an evaluation from a moving vector evaluation section 103 based on the predetermined evaluation function, compares the result of calculation with a predetermined threshold level and interpolates the interleaved frame through the use of the moving vector, and a means 104 interpolating the frame through the use of preceding and succeeding frames of the interleaved frame are used selectively to move Jarkieness due to frame interleaving while deterioration in the picture quality due to the interpolation of the moving vector caused due to inaccurate moving vector is suppressed.