Patent · US Active

Enhancing a chroma-subsampled video stream

US10771797B2 · kind B2 · utility

0Cited by

5References

19Claims

0Family size

Assignee

LogMeIn, Inc. · US

Inventors

Andreas Erwin Heindel · Erlangen, DE
Benjamin Prestele · Dresden, DE
Alexander Gehlert · Radeberg, DE
André Kaup · Hohenkirchen, DE

Key dates

Filing date	Jul 30, 2018
Grant date	Sep 8, 2020
Priority date	—
Expiry date	Aug 31, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH04N19/59
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Techniques are provided for sending and receiving digital video in high-quality compressed form over a network. Such techniques may include (a) performing chroma subsampling on an original video stream to yield an altered video stream; (b) applying video compression to the altered video stream to yield a compressed base layer (BL) stream; (c) creating an enhancement layer (EL) stream based on differences between the original video stream and a decompressed version of the BL stream, the EL stream including additional chroma information, which, when combined with the BL stream, encodes a video stream that has higher chroma fidelity to that of the original video stream than does the BL stream alone; and (d) sending both streams to a receiver device across the network to enable the receiver device to generate a version of the original video stream by combining the BL stream with the EL stream's additional chroma information.

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