公开(公告)号：US09154784B2

公开(公告)日：2015-10-06

申请号：US13975213

申请日：2013-08-23

Applicant: Electronics and Telecommunications Research Institute ,  Kwangwoon University Research Institute for Industry Cooperation ,  Industry-Academia Cooperation Group of Sejong University

Inventor： Se-Yoon Jeong ,  Hae-Chul Choi ,  Jeong-Il Seo ,  Seung-Kwon Beack ,  In-Seon Jang ,  Jae-Gon Kim ,  Kyung-Ae Moon ,  Dae-Young Jang ,  Jin-Woo Hong ,  Jin-Woong Kim ,  Yung-Lyul Lee ,  Dong-Gyu Sim ,  Seoung-Jun Oh ,  Chang-Beom Ahn ,  Dae-Yeon Kim ,  Dong-Kyun Kim

IPC: H04N7/26 ,  H04N19/159 ,  H04N19/176 ,  H04N19/129 ,  H04N19/61 ,  H04N19/11 ,  H04N19/103 ,  H04N19/136

CPC classification number: H04N19/159 ,  H04N19/103 ,  H04N19/11 ,  H04N19/129 ,  H04N19/13 ,  H04N19/136 ,  H04N19/176 ,  H04N19/18 ,  H04N19/182 ,  H04N19/61 ,  H04N19/91

Abstract: 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.

Abstract translation: 本发明公开了一种使用离散余弦变换（DCT）扫描的编码装置，其包括用于选择用于帧内预测的最佳模式的模式选择装置; 帧内预测装置，用于根据在模式选择装置中选择的模式对输入的视频执行帧内预测; DCT和量化装置，用于对从帧内预测装置输出的块的残余系数进行DCT和量化; 以及熵编码装置，用于通过使用基于残差系数的像素相似度确定的扫描模式，对从DCT获取的DCT系数和量化执行熵编码。

公开(公告)号：US20130343452A1

公开(公告)日：2013-12-26

申请号：US13975213

申请日：2013-08-23

Applicant: Electronics and Telecommunications Research Institute ,  Industry-Academia Cooperation Group of Sejong University ,  Kwangwoon University Research Institute for Industry Cooperation

Inventor： Se-Yoon Jeong ,  Hae-Chul Choi ,  Jeong-Il Seo ,  Seung-Kwon Beack ,  In-Seon Jang ,  Jae-Gon Kim ,  Kyung-Ae Moon ,  Dae-Young Jang ,  Jin-Woo Hong ,  Jin-Woong Kim ,  Yung-Lyul Lee ,  Dong-Gyu Sim ,  Seoung-Jun Oh ,  Chang-Beom Ahn ,  Dae-Yeon Kim ,  Dong-Kyun Kim

IPC: H04N7/26

CPC classification number: H04N19/159 ,  H04N19/103 ,  H04N19/11 ,  H04N19/129 ,  H04N19/13 ,  H04N19/136 ,  H04N19/176 ,  H04N19/18 ,  H04N19/182 ,  H04N19/61 ,  H04N19/91

Abstract: 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.

公开(公告)号：US20130266068A1

公开(公告)日：2013-10-10

申请号：US13910639

申请日：2013-06-05

Applicant: Kwangwoon University Research Institute for Industry Cooperation ,  Electronics and Telecommunications Research Institute

Inventor： Jeong-Il Seo ,  Wook-Joong Kim ,  Kyu-Heon Kim ,  Kyeong-Ok Kang ,  Jin-Woo Hong ,  Yung-Lyul Lee ,  Ki-Hun Han ,  Jae-Ho Hur ,  Dong-Gyu Sim ,  Seoung-Jun Oh

IPC: H04N7/26

CPC classification number: H04N19/61 ,  H04N19/129 ,  H04N19/159 ,  H04N19/176

Abstract: 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.