적응적 스캐닝을 이용한 동영상 부호화/복호화 장치 및 그 방법
김욱중, 서정일, 이영렬, 홍진우, 강경옥, 김규헌, 심동규, 임성창, 김휘용, 오승준, 최진수, 이진호, 허재호, 한기훈
- 8199819 (2012.06.12)
- Provided is an apparatus and method for encoding/decoding moving pictures based on adaptive scanning. The moving picture apparatus and method can increase a compression rate based on adaptive scanning by performing intra prediction onto blocks of a predetermined size, and scanning coefficients acquired from Discrete Cosine Transform (DCT) of a residue signal and quantization differently according to the intra prediction mode. The moving picture encoding apparatus includes: a mode selector for selecting and outputting a prediction mode; a predictor for predicting pixel values of pixels to be encoded of an input video based on the prediction mode to thereby output a residue signal block; a transform/quantization unit for performing DCT onto the residue signal block and quantizing the transformed residue signal block; and an encoder for adaptively scanning and encoding the quantized residue signal block based on the prediction mode.
- KSP 제안 키워드
- Compression rate, Discrete cosine, Discrete cosine Transform, Encoding and decoding, Intra prediction, Mode Selector, Moving picture, Pixel Value, Prediction mode, adaptive scanning, cosine transform, intra prediction mode, video based