METHOD AND APPARATUS FOR DETERMINING MOTION REGION IN VIDEO CODING TECHNIQUE USING FEATURE POINT BASED MOTION COMPENSATION

摘要

According to the present invention, in the feature-based motion compensation, a regular motion region of a moving object in an image for extracting a feature point based on an error signal between a corresponding block of a current frame and a previous frame can be set. After calculating the difference signal between each pixel in the corresponding blocks between the input current frame to be encoded and the reconstructed previous frame, the difference signal between each pixel and the predetermined threshold value is calculated based on the calculated threshold value. Detects a motion area including a moving object, removes spot noise by using a relationship between each pixel and other pixels adjacent thereto in the motion area including the detected moving object, and removes the spot noise from the frame. A motion zero including a moving object and a moving object pixel by pixel for each pixel The frame is divided into a plurality of blocks of a predetermined size by substituting an integer value of 0 or 1, which can be distinguished between an inverse and a motion region not including a moving object, and each partitioned block each having integer values is moved in units of blocks. The motion area information is generated by substituting different integer values of 0 or 1 which are distinguishable between the area including the object and the area not including the moving object. Accordingly, the present invention performs feature estimation based motion compensation only on blocks having moving objects based on the motion region information in the corresponding blocks of the current frame and the reconstructed previous frame. It can effectively increase the accuracy of the.