US 12,301,864 B2
Method and device for image encoding and decoding, and recording medium having bit stream stored therein
Ha Hyun Lee, Seoul (KR); Jung Won Kang, Daejeon (KR); Sung Chang Lim, Daejeon (KR); Jin Ho Lee, Daejeon (KR); Hui Yong Kim, Daejeon (KR); Dae Yeon Kim, Seoul (KR); and Dong Jin Park, Seoul (KR)
Assigned to Electronics and Telecommunications Research Institute, Daejeon (KR); and CHIPS & MEDIA, INC, Seoul (KR)
Filed by Electronics and Telecommunications Research Institute, Daejeon (KR); and CHIPS & MEDIA, INC, Seoul (KR)
Filed on Nov. 8, 2023, as Appl. No. 18/504,867.
Application 18/504,867 is a continuation of application No. 17/878,630, filed on Aug. 1, 2022, granted, now 11,856,221.
Application 17/878,630 is a continuation of application No. 16/958,612, granted, now 11,445,215, issued on Sep. 13, 2022, previously published as PCT/KR2018/016842, filed on Dec. 28, 2018.
Claims priority of application No. 10-2017-0181766 (KR), filed on Dec. 28, 2017.
Prior Publication US 2024/0073445 A1, Feb. 29, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/55 (2014.01); H04N 19/182 (2014.01); H04N 19/563 (2014.01)
CPC H04N 19/55 (2014.11) [H04N 19/182 (2014.11); H04N 19/563 (2014.11)] 3 Claims
OG exemplary drawing
 
1. A method of decoding an image, comprising:
obtaining motion-constrained region information,
deriving motion information of a current block; and
performing inter prediction based on the motion-constrained region information and the motion information to generate a prediction block of the current block; and
generate a reconstruction block of the current block based on the prediction block,
when the motion-constrained region information indicates that motion-constrained region is applied, a configuration of motion-constrained region of a reference picture used for inter prediction is equal to a configuration of motion-constrained region of a current picture, and
when a reference sample value outside the motion-constrained region of the reference picture is required for the inter prediction, wherein the inter prediction is performed by using a sample value of a boundary of the motion-constrained region of the reference picture instead of the reference sample value outside the motion-constrained region of the reference picture.