US 11,790,655 B2
Video sampling method and apparatus using the same
Jiahui Yuan, Beijing (CN); Wei Wen, Beijing (CN); and Jianhua Fan, Beijing (CN)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Dec. 29, 2020, as Appl. No. 17/136,368.
Claims priority of application No. 201911392891.9 (CN), filed on Dec. 30, 2019.
Prior Publication US 2021/0201043 A1, Jul. 1, 2021
Int. Cl. G06K 9/00 (2022.01); G06K 9/62 (2022.01); G06V 20/40 (2022.01); G06F 18/214 (2023.01); G06V 10/82 (2022.01); G06V 10/44 (2022.01); G06V 40/20 (2022.01)
CPC G06V 20/46 (2022.01) [G06F 18/214 (2023.01); G06V 10/454 (2022.01); G06V 10/82 (2022.01); G06V 20/41 (2022.01); G06V 20/44 (2022.01); G06V 40/20 (2022.01)] 11 Claims
OG exemplary drawing
 
1. A video sampling method, comprising:
sampling a video based on a sampling window to obtain a current sequence of sampled images;
acquiring action parameters corresponding to the current sequence of sampled images, wherein the action parameters comprise a probability that an action is contained in the current sequence of sampled images, and a completeness degree which indicates a completeness of the action contained in the current sequence of sampled images;
selecting a candidate action having a highest probability from among candidate actions included in the current sequence of sampled images sequence as the action;
determining whether the action is finished and whether the current sequence of sampled images contains the action based on a comparison between the probability and at least one first threshold, and a comparison between the completeness degree and at least one second threshold;
based on determining that the action contained in the current sequence of sampled images is not finished, calculating an incremental size of the sampling window according to the action parameters;
performing smoothing processing on the incremental size according to historical adjustment information of the sampling window;
determining a shifted position of the sampling window according to the incremental size;
adjusting the sampling window based on the shifted position; and
sampling the video based on the adjusted sampling window.