Patent · US Active

Region-of-interest aware video coding

US9167255B2 · kind B2 · utility

1Cited by

4References

20Claims

0Family size

Assignee

MICROSOFT TECHNOLOGY LICENSING, LLC · US

Inventors

Pontus Carlsson · Bromma, SE
Magnus Hemmendorff · Kramfors, SE
Konrad Hofbauer · Stockholm, SE
Sergei Nikiforov · Stockholm, SE
David Yuheng Zhao · Solna, SE

Key dates

Filing date	Sep 26, 2013
Grant date	Oct 20, 2015
Priority date	—
Expiry date	Jan 1, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH04N19/198
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

An encoder comprising an encoding module and an adaptation module. The encoding module is configured to encode video in at least one region-of-interest and outside the region-of-interest. The encoding comprises quantization, and the encoding module is operable to apply a difference in quantization granularity between the encoding inside and outside the region-of-interest. The adaptation module is configured to determine at least one metric representative of a difference in benefit of the quantization inside and outside the region-of-interest, and to adapt the difference in quantization granularity in dependence on this metric.

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