Patent · US Active

Method and device for generating a super-resolution version of a low resolution input data structure

US9105086B2 · kind B2 · utility

2Cited by

2References

15Claims

0Family size

Assignee

Thomson Licensing · FR

Inventors

Jordi Salvador · Hamburg, DE
Axel Kochale · Springe, DE
Malte Borsum · Hannover, DE

Key dates

Filing date	May 8, 2013
Grant date	Aug 11, 2015
Priority date	—
Expiry date	Aug 3, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG06T3/4053
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

The invention relates to an improved robustness in upscaling the resolution of regularly sampled multi-dimensional signals, where a single low-resolution signal is available. These methods are referred to as example-based super-resolution or single-image super-resolution. A method for super-resolving a single image comprises three stages. First, an interpolation-based up-scaling of the input image is performed, followed by a Local De-noising step in contour regions. The second stage comprises extrapolation through cross-scale block matching, wherein an extrapolated high-frequency band is obtained that is de-noised through regularization in the same contour regions. The third stage comprises adding the contributions of the low-frequency band of the high-resolution image and the extrapolated high-frequency band.

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