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1. (WO2018066992) IMAGE DATA ENCODING/DECODING METHOD AND APPARATUS

Pub. No.:    WO/2018/066992    International Application No.:    PCT/KR2017/011153
Publication Date: Fri Apr 13 01:59:59 CEST 2018 International Filing Date: Wed Oct 11 01:59:59 CEST 2017
IPC: H04N 19/625
H04N 19/176
H04N 19/129
H04N 19/13
H04N 19/124
H04N 19/122
H04N 19/105
H04N 19/11
H04N 19/119
H04N 19/134
Applicants: KIM, Ki Baek
김기백
Inventors: KIM, Ki Baek
김기백
Title: IMAGE DATA ENCODING/DECODING METHOD AND APPARATUS
Abstract:
Disclosed is an image data encoding/decoding method and apparatus. A method for decoding a 360-degree image comprises the steps of: receiving a bitstream obtained by encoding a 360-degree image; generating a prediction image by making reference to syntax information obtained from the received bitstream; combining the generated prediction image with a residual image obtained by dequantizing and inverse-transforming the bitstream, so as to obtain a decoded image; and reconstructing the decoded image into a 360-degree image according to a projection format. Here, the step of generating the prediction image comprises a step of generating a prediction block for a current block to be decoded, from a reference region belonging to at least one reference picture, by making reference to motion information obtained from the syntax information.