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.
Industry-Academia Cooperation Group of Sejong University Kwangwoon University Research Institute for Industry Cooperation Electronics and Telecommunications Research Institute
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Seoung-Jun Jae-Gon Yung-Lyul Chang-Beom Dong-Gyu Dae-Young Kyung-Ae Jin-Woong Jeong-Il Hae-Chul Se-Yoon Dae-Yeon Jin-Woo Dong-Kyun Seung-Kwon In-Seon
Oh Kim Lee Ahn Sim Jang Moon Kim Seo Choi Jeong Kim Hong Kim Beack Jang