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.

Date of Patent:
Jul. 30, 2002

Filed:

Aug. 08, 1997
Applicant:
Inventors:

Ioana Donescu, Paris, FR;

Olivier Avaro, Paris, FR;

Christian Roux, St. Renan, FR;

Assignee:

France Telecome, Paris, FR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/36 ;
U.S. Cl.
CPC ...
G06K 9/36 ;
Abstract

A linear transformation of the image signal on a segment with an arbitrary geometrical shape includes the following steps: the sub-division of the segment into sub-segments of regular shapes (rectangular, square or linear shapes), the application of an orthogonal linear transformation to each sub-segment, the combining of the coefficients coming from the first transformation into classes of coefficients according to a predetermined criterion, and the iteration of the transformation on the classes of coefficients, and which can be applied to the processing of images for encoding.


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