Patent ID: 8279937
Filing Date: 2012-10-02
Classification: H04N

Abstract:
1. An apparatus for correcting moving image wavering, comprising: a selecting unit to select at least one reference macroblock from an input image of a first frame and to select at least one search area from an input image of a second frame, wherein the selected at least one search area corresponds to the at least one reference macroblock selected from the input image of the first frame; an operating unit to communicate with the selecting unit and to perform a statistical operation by matching the at least one reference macroblock of the first frame to each of search blocks included in the at least one search area of the second frame; a vector calculating unit to communicate with the operating unit and to calculate a motion vector to correct an output image of the second frame based on a resultant value of the statistical operation; and an input processing unit to communicate with the selecting unit to receive images of a first and second frames from an external source, downsize the received images from 50% to 70%, and convert pixel values of the downsized images into gray level values to generate the input image of the first frame and the input image of the second frame, wherein the operating unit comprises a statistical operation unit to communicate with the first input unit and the second input unit, wherein the statistical operation unit is configured to calculate an operation matrix by performing the statistical operation while shifting the reference macroblock of the first frame in a vertical or horizontal direction such that the reference macroblock corresponds to each search block included in the search area of the second frame, and stores the calculated operation matrix in a memory.