US 11,683,502 B2
Image encoder and decoder using unidirectional prediction
Hae Chul Choi, Daejeon (KR); Se Yoon Jeong, Daejeon (KR); Sung-Chang Lim, Daejeon (KR); Jin Soo Choi, Daejeon (KR); Jin Woo Hong, Daejeon (KR); Dong Gyu Sim, Daejeon (KR); Seoung-Jun Oh, Seongnam-si (KR); Chang-Beom Ahn, Seoul (KR); Gwang Hoon Park, Seongnam-si (KR); Seung Ryong Kook, Suwon-si (KR); Sea-Nae Park, Seoul (KR); and Kwang-Su Jeong, Seoul (KR)
Assigned to Electronics and Telecommunications Research Institute, Daejeon (KR); Kwangwoon University Industry-Academic Collaboration Foundation, Seoul (KR); and University-Industry Cooperation Group of Kyung Hee University, Seoul (KR)
Filed by Electronics and Telecommunications Research Institute, Daejeon (KR); Kwangwoon University Industry-Academic Collaboration Foundation, Seoul (KR); and University-Industry Cooperation Group of Kyung Hee University, Seoul (KR)
Filed on Jan. 5, 2021, as Appl. No. 17/141,509.
Application 17/141,509 is a continuation of application No. 16/388,382, filed on Apr. 18, 2019, granted, now 10,742,996.
Application 16/388,382 is a continuation of application No. 15/288,942, filed on Oct. 7, 2016, granted, now 10,321,137, issued on Jun. 11, 2019.
Application 15/288,942 is a continuation of application No. 15/192,627, filed on Jun. 24, 2016, granted, now 9,942,554, issued on Apr. 10, 2018.
Application 15/192,627 is a continuation of application No. 14/469,288, filed on Aug. 26, 2014, granted, now 9,407,937, issued on Aug. 2, 2016.
Application 14/469,288 is a continuation of application No. 13/738,463, filed on Jan. 10, 2013, granted, now 8,867,854, issued on Oct. 21, 2014.
Application 13/738,463 is a continuation of application No. 13/129,570, granted, now 8,363,965, issued on Jan. 29, 2013, previously published as PCT/KR2009/005647, filed on Oct. 1, 2009.
Claims priority of application No. 10-2008-0096658 (KR), filed on Oct. 1, 2008; application No. 10-2009-0001240 (KR), filed on Jan. 7, 2009; and application No. 10-2009-0093128 (KR), filed on Sep. 30, 2009.
Prior Publication US 2021/0127121 A1, Apr. 29, 2021
Int. Cl. G06V 30/00 (2022.01); H04N 19/159 (2014.01); H04N 19/132 (2014.01); H04N 19/587 (2014.01); H04N 19/593 (2014.01); H04N 19/61 (2014.01); H04N 19/70 (2014.01); H04N 19/11 (2014.01); H04N 19/124 (2014.01); H04N 19/44 (2014.01); H04N 19/50 (2014.01); H04N 19/625 (2014.01); H04N 19/91 (2014.01); H04N 19/147 (2014.01); H04N 19/176 (2014.01); H04N 19/182 (2014.01); H04N 19/51 (2014.01); H04N 19/615 (2014.01); H04N 19/105 (2014.01); H04N 19/117 (2014.01); H04N 19/43 (2014.01); H04N 19/172 (2014.01)
CPC H04N 19/159 (2014.11) [H04N 19/105 (2014.11); H04N 19/11 (2014.11); H04N 19/117 (2014.11); H04N 19/124 (2014.11); H04N 19/132 (2014.11); H04N 19/147 (2014.11); H04N 19/176 (2014.11); H04N 19/182 (2014.11); H04N 19/43 (2014.11); H04N 19/44 (2014.11); H04N 19/50 (2014.11); H04N 19/51 (2014.11); H04N 19/587 (2014.11); H04N 19/593 (2014.11); H04N 19/61 (2014.11); H04N 19/615 (2014.11); H04N 19/625 (2014.11); H04N 19/70 (2014.11); H04N 19/91 (2014.11); H04N 19/172 (2014.11)] 7 Claims
OG exemplary drawing
 
1. An image decoding apparatus, comprising:
an intra-prediction unit configured to perform intra prediction on a first block, perform intra prediction on a second block adjacent to a right side of the first block, perform intra prediction on a third block adjacent to a bottom of the first block, and perform intra prediction on a fourth block adjacent to a right bottom of the first block,
wherein the first block, the second block, the third block, and the fourth block are predicted in one intra prediction mode,
wherein the first block, the second block, the third block, and the fourth block form a prediction block predicted in one intra prediction mode,
wherein the first block, the second block, the third block, and the fourth block are transform blocks on which intra prediction is performed,
wherein a size of the first block, a size of the second block, a size of the third block and a size of the fourth block are the same, and
wherein a width of the prediction block is equal to a height of the prediction block.