US 12,273,537 B2
Image encoding/decoding method and apparatus using intra-screen prediction
Je Chang Jeong, Seoul (KR); and Ki Baek Kim, Seoul (KR)
Assigned to Industry-University Cooperation Foundation Hanyang University, Seoul (KR)
Filed by Industry-University Cooperation Foundation Hanyang University, Seoul (KR)
Filed on Oct. 5, 2023, as Appl. No. 18/481,623.
Application 18/481,623 is a continuation of application No. 18/105,968, filed on Feb. 6, 2023, granted, now 11,825,099.
Application 18/105,968 is a continuation of application No. 17/037,887, filed on Sep. 30, 2020, abandoned.
Application 17/037,887 is a continuation of application No. 16/098,325, granted, now 10,834,408, issued on Nov. 10, 2020, previously published as PCT/KR2017/004696, filed on May 2, 2017.
Claims priority of application No. 10-2016-0054279 (KR), filed on May 2, 2016.
Prior Publication US 2024/0107029 A1, Mar. 28, 2024
Int. Cl. H04N 19/159 (2014.01); H04N 19/105 (2014.01); H04N 19/11 (2014.01); H04N 19/174 (2014.01); H04N 19/176 (2014.01); H04N 19/44 (2014.01); H04N 19/96 (2014.01)
CPC H04N 19/159 (2014.11) [H04N 19/105 (2014.11); H04N 19/11 (2014.11); H04N 19/174 (2014.11); H04N 19/176 (2014.11); H04N 19/44 (2014.11); H04N 19/96 (2014.11)] 11 Claims
OG exemplary drawing
 
6. A encoding method which uses intra prediction performed in a encoding apparatus, the encoding method comprising the steps of:
generating a prediction block of a current block to be encoded;
obtaining a residual block of the current block by using an original block of the current block and the prediction block;
encoding the residual block of the current block into a bitstream
wherein encoding information generated based on the prediction block is encoded into the bitstream,
wherein generating the prediction block comprises:
predicting a pixel of a first region belonging to the current block, by using a neighboring block adjacent to the current block; and
predicting a pixel of a second region belonging to the current block, by using the predicted pixel of the first region and a restored pixel of the neighboring block,
wherein the first region includes only at least one pixel of even-numbered pixel lines within the current block,
wherein the second region includes at least one pixel of odd-numbered pixel lines within the current block,
wherein the pixel of the second region is predicted using a weighted sum of the predicted pixel of the first region and the restored pixel of the neighboring block, and
wherein the neighboring block includes a left block adjacent to a left of the current block and a top block adjacent to a top of the current block.