公开(公告)号：US11770545B2

公开(公告)日：2023-09-26

申请号：US17398665

申请日：2021-08-10

Applicant: Axis AB

Inventor： Sebastian Hultqvist ,  Viktor Edpalm ,  Axel Keskikangas ,  Anton Eliasson

IPC: H04N19/30 ,  H04N23/80 ,  H04N19/119 ,  H04N19/137 ,  H04N19/142 ,  G06F16/71 ,  G06F21/64 ,  H04N5/91

CPC classification number: H04N19/30 ,  G06F16/71 ,  G06F21/64 ,  H04N5/91 ,  H04N19/119 ,  H04N19/137 ,  H04N19/142 ,  H04N23/80

Abstract: A method of encoding a video stream for the provision of prunable video data, comprising: receiving, in an encoder, a video stream in which each image frame of the video stream is divided into a number of subviews, providing each subview with an assigned category based on a content of the particular subview, monitoring the evolution of category assigned for each subview, and encoding the video stream using a hierarchical P-frame encoding structure, in such manner that each change in category for a subview starts a new hierarchical P-frame structure.

公开(公告)号：US11770538B2

公开(公告)日：2023-09-26

申请号：US17398658

申请日：2021-08-10

Applicant: Axis AB

Inventor： Sebastian Hultqvist ,  Viktor Edpalm ,  Axel Keskikangas ,  Anton Eliasson

IPC: H04N19/137 ,  G06V20/52 ,  H04N19/114 ,  H04N19/159 ,  H04N19/52 ,  G06V20/40

CPC classification number: H04N19/137 ,  G06V20/40 ,  G06V20/52 ,  H04N19/114 ,  H04N19/159 ,  H04N19/52 ,  G06V20/44

Abstract: A method for encoding a video stream for the provision of prunable video data, comprising identifying, in the video stream, a first event-generating occurrence in one or more frames of the video stream, and, in an encoder, using the event-generating occurrence to initiate a hierarchical branch extending from a base-layer when encoding the video stream.