Apparatus and method for encoding and decoding moving picture using adaptive scanning

• Main Authors: Hong, Jin-Woo, Han, Ki-Hun, Oh, Seoung-Jun, Seo, Jeong-Il, Lee, Yung-Lyul, Kim, Kyu-Heon, Kim, Wook-Joong, Hur, Jae-Ho, Kang, Kyeong-Ok, Sim, Dong-Gyu
• Format: Patent
• Language: English
• Published: 22.01.2019
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

Provided is an apparatus and method for encoding/decoding a moving picture 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.