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US Patent 11395009 Image reshaping in video coding using rate distortion optimization

Patent 11395009 was granted and assigned to Dolby Laboratories on July, 2022 by the United States Patent and Trademark Office.

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Patent attributes

Patent Applicant

Dolby Laboratories

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Current Assignee

Dolby Laboratories

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Patent Jurisdiction

United States Patent and Trademark Office

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Patent Number

Patent Inventor Names

Fangjun Pu0

Peng Yin0

Sean Thomas McCarthy0

Tao Chen0

Taoran Lu0

Walter J. Husak0

Date of Patent

July 19, 2022

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Patent Application Number

169685740

Date Filed

February 13, 2019

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Patent Citations

US Patent 10542289 Signal reshaping and coding for HDR and wide color gamut signals

US Patent 10015491 In-loop block-based image reshaping in high dynamic range video coding

US Patent 10165275 Content-adaptive reshaping for high dynamic range images

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Given a sequence of images in a first codeword representation, methods, processes, and systems are presented for image reshaping using rate distortion optimization, wherein reshaping allows the images to be coded in a second codeword representation which allows more efficient compression than using the first codeword representation. Syntax methods for signaling reshaping parameters are also presented.

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