Patent ID: 6269191
Filing Date: 2001-07-31
Classification: G06T,H04N

Abstract:
A prediction image generating apparatus using a plurality of masks, comprising:a maximum value searching unit to search a maximum value of element values of one of the masks corresponding to first pixels having one binary level among a plurality of pixels located in front of a current pixel having a current binary level to be predicted in a window of a predetermined size of an image;a minimum value searching unit to search a minimum value of the element values of the one mask corresponding to second pixels having the other binary level among the plurality of pixels located in front of the current pixel having the current binary level to be predicted in the window of the predetermined size;a mean calculation unit to determine an average of the maximum value and the minimum value searched from the maximum value searching unit and the minimum value searching unit;a binarization unit to binarize the average determined by the mean calculation unit; anda comparing unit to compare the binarized average with the current binary level of the current pixel, to output prediction image data indicating successful or failed prediction.