	US 12,192,516 B2
	Video encoding and decoding method and apparatus using selective subblock split information signaling
Byeung Woo Jeon, Seongnam-si (KR); Jee Yoon Park, Seoul (KR); Bum Yoon Kim, Yongin-si (KR); and Seung Wook Park, Yongin-si (KR)
Assigned to HYUNDAI MOTOR COMPANY, Seoul (KR); KIA CORPORATION, Seoul (KR); and RESEARCH &BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY, Suwon-si (KR)
Filed by HYUNDAI MOTOR COMPANY, Seoul (KR); KIA CORPORATION, Seoul (KR); and RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY, Suwon-si (KR)
Filed on May 16, 2023, as Appl. No. 18/198,061.
Application 18/198,061 is a continuation of application No. PCT/KR2021/017261, filed on Nov. 23, 2021.
Claims priority of application No. 10-2020-0157793 (KR), filed on Nov. 23, 2020; and application No. 10-2021-0161995 (KR), filed on Nov. 23, 2021.
Prior Publication US 2023/0291928 A1, Sep. 14, 2023
Int. Cl. H04N 19/593 (2014.01); H04N 19/103 (2014.01); H04N 19/105 (2014.01); H04N 19/176 (2014.01)

CPC H04N 19/593 (2014.11) [H04N 19/103 (2014.11); H04N 19/105 (2014.11); H04N 19/176 (2014.11)]

13 Claims

1. An intra prediction method for applying an intra prediction mode of a current block to subblocks obtained by splitting the current block performed by a video decoding apparatus, the method comprising:

decoding the size and an intra prediction mode of the current block;

generating a pre-prunable range of the subblocks based on the size of the current block and the number of partitioned subblocks, wherein the pre-prunable range includes a vertical pre-prunable range and a horizontal pre-prunable range and represents a set of intra prediction directions in which constructed samples of newly reconstructed neighboring subblocks are not used by the subblocks when prediction is performed; and

setting a splitting direction of the subblocks according to whether the intra prediction mode is included in the vertical pre-prunable range or the horizontal pre-prunable range.