公开(公告)号：US20220086468A1

公开(公告)日：2022-03-17

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 ,  H04N19/137 ,  H04N5/232 ,  H04N19/119 ,  H04N5/91 ,  H04N19/142 ,  G06F16/71 ,  G06F21/64

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：US20220086450A1

公开(公告)日：2022-03-17

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 ,  H04N19/114 ,  H04N19/159 ,  G06K9/00 ,  H04N19/52

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.

公开(公告)号：US20210405601A1

公开(公告)日：2021-12-30

申请号：US17336992

申请日：2021-06-02

Applicant: Axis AB

Inventor： Sebastian HULTQVIST ,  Axel KESKIKANGAS

IPC: G05B19/042

Abstract: A method, implemented in a device, for remote resetting of the device to factory default settings, the device comprising an electric circuit adapted to carry out the factory default reset and a secure processing and storage environment, SPSE, the method comprising: receiving, at the SPSE, a request to reset the device to factory default settings and a challenge associated with the request, wherein the request and the challenge are received via a network; initiating, by the SPSE, a reset to factory default settings of the device by communicating with the electric circuit via a communication channel; and sending, by the SPSE, a confirmation via the network, wherein the confirmation includes a response to the challenge as produced by the SPSE and an attestation report, the attestation report being a declaration by the SPSE that the reset to factory default settings is initiated or carried out.