公开(公告)号：US10742995B2

公开(公告)日：2020-08-11

申请号：US15855922

申请日：2017-12-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yo Won Jeong ,  Jung Yeop Yang ,  Young Beom Jung ,  Byeung Woo Jeon ,  Sung Hyun Cha ,  Seong Jin Kang ,  Quoc Khanh Dinh

IPC: H04N19/159 ,  H04N19/44 ,  H04N19/124 ,  H04N19/172 ,  H04N19/103 ,  H04N19/147 ,  H04N19/176 ,  H04N19/154

Abstract: An encoding system includes a prediction mode decision unit and an encoding unit. The prediction mode decision unit is configured to receive a target image and decide an optimized mode by applying rate-distortion optimization (RDO) to n (n is a natural number) modes of the target image. The encoding unit is configured to encode the target image according to the decided mode. The prediction mode decision unit includes a distortion calculation unit configured to calculate distortion by mean squared error (MSE) calculation between the target image and the n modes, a Lagrangian multiplier calculation unit configured to calculate a Lagrangian multiplier based on multi-scale structural similarity (MS-SSIM) calculation, and a bitrate calculation unit configured to calculate a bit rate of the n modes.