NSIP Law
Apparatus for encoding and decoding image using adaptive DCT coefficient scanning based on pixel similarity and method therefor
The present invention discloses an encoding apparatus using a Discrete Cosine Transform (DCT) scanning, which includes a mode selection means for selecting an optimal mode for intra prediction; an intra prediction means for performing intra prediction onto video inputted based on the mode selected in the mode selection means; a DCT and quantization means for performing DCT and quantization onto residual coefficients of a block outputted from the intra prediction means; and an entropy encoding means for performing entropy encoding onto DCT coefficients acquired from the DCT and quantization by using a scanning mode decided based on pixel similarity of the residual coefficients.
Electronics and Telecommunications Research Institute Kwangwoon University Research Insitute of Industry Cooperation Industry-Academia Cooperation Group of Sejong University
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Dong-Kyun Seoung-Jun Se-Yoon Yung-Lyul Dae-Young Chang-Beom Jeong-Il Jin-Woo Jin-Woong Dae-Yeon Kyung-Ae Seung-Kwon Dong-Gyu In-Seon Jae-Gon Hae-Chul
Kim Oh Jeong Lee Jang Ahn Seo Hong Kim Kim Moon Beack Sim Jang Kim Choi