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柳在熙,裵埈徹 弘益大學校 科學技術硏究所 2002 科學技術硏究論文集 Vol.13 No.-
Based on Constant geometry Discrete cosine transform algorithm, an architecture with identical hardware cascaded by pipeline style, which is capable of high throughput as well as shape adaptive edge pel processing for object based coding is proposed. For shape adaptive DCT, input pels are fed into data buffer, appropriate pel input is shuffled with MUX, average of pel based on nearby pels is computed for pel padding and finally the outputs are shuffled for 8 X 8 matrix format for DCT post processing. The presented DCT architecture can be utilized for MPEG2 and MPEG4 codec by programming the presented padding hardware.