Invention Grant
- Patent Title: Encoding apparatus and method of controlling the same
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Application No.: US14871024Application Date: 2015-09-30
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Publication No.: US09602842B2Publication Date: 2017-03-21
- Inventor: Hideyuki Matsui , Tomokazu Sato
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Carter, DeLuca, Farrell & Schmidt, LLP
- Priority: JP2014-206674 20141007; JP2015-148849 20150728
- Main IPC: G06K9/36
- IPC: G06K9/36 ; H04N19/89 ; H04N19/182 ; H04N19/85 ; H04N19/597

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.
Public/Granted literature
- US20160100198A1 ENCODING APPARATUS AND METHOD OF CONTROLLING THE SAME Public/Granted day:2016-04-07
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