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:
Mar. 21, 2017
Filed:
Sep. 30, 2015
Canon Kabushiki Kaisha, Tokyo, JP;
Hideyuki Matsui, Tokyo, JP;
Tomokazu Sato, Yokohama, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
The invention provide an apparatus that enables encoding while suppressing a maximum distortion due to a compression of pixel values to an allowable error. The apparatus comprises a setting unit that sets transformation information for transforming a pixel value of a target image into a second pixel value in accordance with the allowable error information; a transformation unit that transforms each pixel value of the image based on the transformation information to generate a second image; a first unit that encodes the second image using an encoding unit for encoding such that a difference in a pixel value before and after encoding is within a constant δ; and a second unit that generates inverse transformation information for transforming a pixel value of the second image into a value related to a pixel value of the target image, and lossless-encodes the generated information.