화소 유사성에 따라 적응적인 DCT 계수 스캐닝을 이용한 부호화 및 복호화 방법, 그 장치
이영렬, 심동규, 김대연, 김동균, 안창범, 오승준, 장인선, 최해철, 백승권, 서정일, 정세윤, 문경애, 김재곤, 장대영, 김진웅, 홍진우, 임성창, 김휘용, 최진수, 이진호
- 9225982 (2015.12.29)
- 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.
- KSP 제안 키워드
- An encoding, DCT coefficients, Discrete cosine, Discrete cosine Transform, Encoding and decoding, Intra prediction, Mode Selection, Residual coefficients, Scanning mode, adaptive scanning, cosine transform, pixel similarity