Patent · US Active

Adaptive transforms

US7792390B2 · kind B2 · utility

18Cited by

26References

34Claims

0Family size

Assignee

Altera Corporation · US

Inventors

Adityo Prakash · Redwood Shores, US
Edward Ratner · Los Altos, US
Dimitri Antsos · San Marino, US

Key dates

Filing date	Dec 19, 2001
Grant date	Sep 7, 2010
Priority date	—
Expiry date	Jun 24, 2026

Classification

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

Abstract

In one embodiment, an image is broken up into multiple regions or segments, where each segment may be of arbitrary shape, and a transform (multi-scale or otherwise) is applied on the set of segments. In another embodiment, pattern adaptive prediction is used when predicting the next finer level of the transform pyramid. The pattern adaptive prediction uses the parent grid to determine what geometry of a filter is to be used when predicting the child grid. At the boundaries of the domain, the pattern adaptive prediction can be coupled with the domain adaptive prediction technique.

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