Patent · US Active

Method, a video encoder, and a video camera for encoding a video stream

US10382780B2 · kind B2 · utility

0Cited by

1References

11Claims

0Family size

Assignee

Axis AB · SE

Inventors

Anton Öhrn · Lund, SE
Viktor Edpalm · Lund, SE
Henrik Eliasson · Lund, SE
Björn Benderius · Lund, SE
Niclas Svensson · Lund, SE
Xing Fan · Beijing, CN
Fredrik Pihl · Lund, SE

Key dates

Filing date	Mar 22, 2018
Grant date	Aug 13, 2019
Priority date	—
Expiry date	Mar 25, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH04N19/593
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A method of encoding a video stream comprising receiving a frame of a video stream to be encoded, performing motion detection in the frame to identify steady regions, and temporally filtering the frame so as to provide temporally filtered pixel values. For a pixel in the steady regions of the frame, the temporally filtered pixel value is used when encoding the pixel, on a condition that the pixel belongs to a block of pixels of the frame that will be intra-coded. On a condition that the pixel instead belongs to a block of pixels of the frame that will be inter-coded, a value that was used when encoding a corresponding pixel of the immediately preceding frame is used when encoding the pixel.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.