US 11,758,128 B2
Method and device for encoding/decoding image using geometrically modified picture
Jung Won Kang, Daejeon (KR); Hyun Suk Ko, Daejeon (KR); Sung Chang Lim, Daejeon (KR); Jin Ho Lee, Daejeon (KR); Dong San Jun, Daejeon (KR); Hui Yong Kim, Daejeon (KR); Gwang Hoon Park, Seongnam-si (KR); Jin Soo Choi, Daejeon (KR); Tae Hyun Kim, Hwaseong-si (KR); Dae Young Lee, Ansan-si (KR); and Young Su Heo, Suwon-si (KR)
Assigned to Electronics and Telecommunications Research Institute, Daejeon (KR); and University-Industry Cooperation Group of Kyung Hee University, Yongin-si (KR)
Filed by Electronics and Telecommunications Research Institute, Daejeon (KR); and University-Industry Cooperation Group of Kyung Hee University, Yongin-si (KR)
Filed on Aug. 17, 2022, as Appl. No. 17/820,539.
Application 17/820,539 is a continuation of application No. 17/221,195, filed on Apr. 2, 2021, granted, now 11,425,370.
Application 17/221,195 is a continuation of application No. 15/776,292, granted, now 11,412,209, issued on Aug. 9, 2022, previously published as PCT/KR2016/013364, filed on Nov. 18, 2016.
Claims priority of application No. 10-2015-0163246 (KR), filed on Nov. 20, 2015.
Prior Publication US 2022/0408083 A1, Dec. 22, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/105 (2014.01); G06T 5/00 (2006.01); G06T 5/50 (2006.01); G06T 7/246 (2017.01); H04N 19/139 (2014.01); H04N 19/159 (2014.01); H04N 19/176 (2014.01); H04N 19/513 (2014.01); G06T 3/00 (2006.01); H04N 19/137 (2014.01); H04N 19/51 (2014.01); H04N 19/172 (2014.01); H04N 19/174 (2014.01)
CPC H04N 19/105 (2014.11) [G06T 5/006 (2013.01); G06T 5/50 (2013.01); G06T 7/248 (2017.01); H04N 19/137 (2014.11); H04N 19/139 (2014.11); H04N 19/159 (2014.11); H04N 19/172 (2014.11); H04N 19/176 (2014.11); H04N 19/51 (2014.11); H04N 19/521 (2014.11); G06T 3/0006 (2013.01); H04N 19/174 (2014.11)] 8 Claims
OG exemplary drawing
 
1. A method for decoding an image, the method comprising:
receiving a bitstream including a frame header including a plurality of flag syntax elements, each of the plurality of flag syntax elements being associated with a respective one of a plurality of reference pictures, wherein each of the plurality of flag syntax elements indicates whether the frame header includes global geometric modification information syntax elements for an associated reference picture;
if a flag syntax element indicates that the frame header includes global geometric modification syntax elements for a reference picture associated with the flag syntax element, reading, from the frame header, global geometric modification information syntax elements for the reference picture associated with the flag syntax element;
reconstructing geometric modification information for the reference picture associated with the flag syntax element based on the global geometric modification information syntax elements for the reference picture associated with the flag syntax element;
geometrically modifying the reference picture associated with the flag syntax element based on the reconstructed geometric modification information for the reference picture associated with the flag syntax element to generate a prediction block; and
reconstructing a current picture based on a residual block and the prediction block.