公开(公告)号：US20210168379A1

公开(公告)日：2021-06-03

申请号：US17069921

申请日：2020-10-14

Applicant: Axis AB

Inventor： Xing Danielsson FAN ,  Maya SHAH ,  Mattias PETTERSSON ,  Adam Schill COLLBERG ,  Fredrik PIHL ,  Magnus SÖDERDAHL ,  Peter WILHELMSSON

IPC: H04N19/176 ,  H04N19/61 ,  H04N19/172 ,  H04N19/593

Abstract: Video encoding, and specifically to a method and an encoder which can adapt the probability of intra refresh of image frame subdivisions based on a count of image frames since a previous refresh and modulated through convex or concave shaped distribution functions are set forth herein.

公开(公告)号：US20210168086A1

公开(公告)日：2021-06-03

申请号：US17082111

申请日：2020-10-28

Applicant: Axis AB

Inventor： Viktor EDPALM ,  Maya SHAH

IPC: H04L12/823 ,  H04N19/172

Abstract: A method for encoding and transmitting a plurality of image frames of a video stream includes: intra refresh encoding the plurality of image frames; encoding one image frame of the plurality of image frames to produce encoded image data of the one image frame, the encoded image data being organized in a plurality of data packets, wherein the encoding comprises intra frame encoding the one image frame; transmitting, over a time period, the intra refresh encoded image frames; transmitting the plurality of data packets, wherein the transmission of the plurality of data packets is distributed over the time period during which the intra refresh encoded image frames are transmitted. An interrelated method for receiving and storing the plurality of image frames, as well as devices and computer program products for performing the methods, are also provided.