Invention Grant
- Patent Title: Video encoding method and device and decoding method and device
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Application No.: US16025391Application Date: 2018-07-02
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Publication No.: US10455252B2Publication Date: 2019-10-22
- Inventor: Yoon-Mi Hong , Woo-Jin Han , Min-Su Cheon , Jianle Chen
- Applicant: SAMSUNG ELECTRONICS CO., LTD.
- Applicant Address: KR Suwon-si
- Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee Address: KR Suwon-si
- Agency: Sughrue Mion, PLLC
- Main IPC: H04N19/60
- IPC: H04N19/60 ; G06F17/14 ; H04N19/625 ; H04N19/126 ; H04N19/176

Abstract:
A video encoding method, a video encoding apparatus, a video decoding method, and a video decoding apparatus are provided. The video encoding method includes producing a fast transform matrix based on a transform matrix which is used for frequency transformation on a block which has a predetermined size; producing a transformed block by transforming the block having the predetermined size by using the fast transform matrix; and performing scaling with respect to the transformed block in order to correct a difference between the transform matrix used for the frequency transformation and the fast transform matrix.
Public/Granted literature
- US20180310026A1 VIDEO ENCODING METHOD AND DEVICE AND DECODING METHOD AND DEVICE Public/Granted day:2018-10-25
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