Patent · US Active

Image processing using resolution numbers to determine additional component values

US8369629B2 · kind B2 · utility

0Cited by

9References

7Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Tomas G. Akenine-Moller · Lund, SE
Jacob Munkberg · Malmö, SE
Petrik Clarberg · Lund, SE
Jon N. Hasselgren · Bunkeflostrand, SE
Jacob Ström · Stockholm, SE

Key dates

Filing date	Jan 22, 2007
Grant date	Feb 5, 2013
Priority date	—
Expiry date	Jun 6, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH04N19/90
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

First and second codewords are determined, based on first feature vector components of the image elements in an image block, as representations of a first and second component value. Third and fourth codewords are determined, based on second vector components, as representations of a third and fourth component value. First N1 and second N2 resolution numbers are selected based on the relation of a distribution of the first vector components and a distribution of the second vector components. N1 additional component values are generated based on the first and second component values and N2 additional component values are generated based on the third and fourth component values. Component indices indicative of the generated component values are then provided for the different image elements.

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