The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 28, 2012
Filed:
Apr. 17, 2007
Leo Jan Velthoven, Eindhoven, NL;
Michiel Adriaanszoon Klompenhouwer, Eindhoven, NL;
Remco Theodorus Johannes Muijs, Eindhoven, NL;
Gerben Johan Hekstra, Eindhoven, NL;
Leo Jan Velthoven, Eindhoven, NL;
Michiel Adriaanszoon Klompenhouwer, Eindhoven, NL;
Remco Theodorus Johannes Muijs, Eindhoven, NL;
Gerben Johan Hekstra, Eindhoven, NL;
TP Vision Holding B.V., Eindhoven, NL;
Abstract
An apparatus for enhancing at least a region of an input picture having input pixel values enabling a reduction of quantization banding artifacts including an estimation unit arranged to estimate a quantization precision of at least the region of the input picture, a pattern analysis unit arranged to determine positions in the input picture of changes in input pixel value of less than or equal to the quantization precision, and to output analysis information representing the positions, and an adaptive filter, arranged to calculate an output picture corresponding to at least the region of the input picture, comprising output pixels being determined on the basis of adaptive combinations of input pixels, and arranged to determine the adaptive combinations in dependence on the analysis information.