Patent ID: 8165412
Filing Date: 2012-04-24
Classification: H04N

Abstract:
1. A method of decoding a binary image at a high speed, the method comprising: determining whether a predetermined number of sequential pixels including a target pixel to be decoded in the binary image corresponds to any one of a white_run, a black_run, and a combined_run; and decoding the predetermined number of sequential pixels in a block per clock unit if the predetermined number of sequential pixels corresponds to any one of the white_run, the black_run, and the combined_run, wherein the predetermined number of sequential pixels including the target pixel corresponds to: the predetermined number of sequential pixels have same context values in peripheral pixels of the target pixel when the predetermined number of sequential pixels corresponds to the white_run or the black_run, and the predetermined number of sequential pixels have same pixel values in a peripheral block of the target pixel when the predetermined number of sequential pixels corresponds to the white_run or the black_run.