Patent · US Active

Reducing digital image noise

US8571347B2 · kind B2 · utility

7Cited by

9References

20Claims

0Family size

Assignee

Marvell World Trade Ltd. · BB

Inventors

Sujith Srinivasan · Bengaluru, IN
Byas Muni · Bachra, IN
Sanjay Garg · Savanuru, IN

Key dates

Filing date	Sep 9, 2009
Grant date	Oct 29, 2013
Priority date	—
Expiry date	Aug 16, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/20012
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Devices, systems, methods, and other embodiments associated with reducing digital image noise are described. In one embodiment, a method includes determining, on a per pixel basis, mosquito noise values associated with pixels of a digital image. The method determines, on a per pixel basis, block noise values associated with the digital image. The method filters the digital image with a plurality of adaptive filters. A compression artifact in the digital image is reduced. The compression artifact is reduced by combining filter outputs from the plurality of adaptive filters. The filter outputs are combined based, at least in part, on the mosquito noise values and the block noise values.

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