Dolby Laboratories Licensing Corporation

Dolby International Ab

Dolby Laboratories Corporation

The University of British Columbia

Dobly Laboratories Licensing Corporation

Dolby Laboratories Licensing Corproation

Robin Atkins

Scott J Daly

Neil W Messmer

Jaclyn Anne Pytlarz

Steve Margerm

Peter William Longhurst

Tao Chen

Peng Yin

Jon Scott Miller

Gregory John Ward

Mahdi Nezamabadi

Guan-Ming Su

Taoran Lu

Walter J Husak

Samir N Hulyalkar

Timo Kunkel

Sean Thomas McCarthy

Fangjun Pu

Raymond Yeung

Thaddeus Beier

Jon S McElvain

Rabab K Ward

Anustup Kumar Atanu Choudhury

Robert Wanat

Ajit Ninan

Kimball Darr Thurston, Iii

Walter Christian Gish

Sheng Qu

Anders Ballestad

Alexandre Chapiro

Patrick Griffis

Elizabeth G Pieri

Jan Froehlich

Craig C Todd

Chun Chi Wan

Qian Chen

Suzanne Farrell

William Brent Wilson

Jonathan Robert Miller

Ian Godin

Anne Webster

Lorne Arthur Whitehead

Ning Xu

Helge Seetzen

Gerwin Damberg

Michael J Rockwell

Ali Zandifar

Eric Kozak

James E Crenshaw

Stephen Decker Vernon

Lewis Ajax Johnson

Gopi Lakshminarayanan

David Brooks

Vincent Kwong

Per Jonas Andreas Klittmark

Jake William Zuena

Brent Wilson

Alexander Partin

Jon Scott Mcelvain

Hariharan Ganapathy Kathirvelu

Qiuwei Wang

Eldon Lee Rivers

Terence Ka Wing Lau

Henry Hang Kei Ip

Douglas Campbell

Sean Thomas Mccarthy

Lewis Johnson

Kimball Darr Iii Thurston

Stephen D Vernon

Kimball D Thurston Iii

Several embodiments of scalable image processing systems and methods are disclosed herein whereby color management processing of source image data to be displayed on a target display is changed according to varying levels of metadata.

Scalable systems for controlling color management comprising varying levels of metadata

One or more media contents are received. A viewer's light adaptive states are predicted as a function of time as if the viewer is watching display mapped images derived from the one or more media contents. The viewer's light adaptive states are used to detect an excessive change in luminance in a specific media content portion of the one or more media contents. The excessive change in luminance in the specific media content portion of the one or more media contents is caused to be reduced while the viewer is watching one or more corresponding display mapped images derived from the specific media content portion of the one or more media contents.

Luminance adaption to minimize discomfort and improve visibility

A handheld imaging device has a data receiver that is configured to receive reference encoded image data. The data includes reference code values, which are encoded by an external coding system. The reference code values represent reference gray levels, which are being selected using a reference grayscale display function that is based on perceptual non-linearity of human vision adapted at different light levels to spatial frequencies. The imaging device also has a data converter that is configured to access a code mapping between the reference code values and device-specific code values of the imaging device. The device-specific code values are configured to produce gray levels that are specific to the imaging device. Based on the code mapping, the data converter is configured to transcode the reference encoded image data into device-specific image data, which is encoded with the device-specific code values.

Perceptual luminance nonlinearity-based image data exchange across different display capabilities

Methods and systems for frame rate scalability are described. Support is provided for input and output video sequences with variable frame rate and variable shutter angle across scenes, or for input video sequences with fixed input frame rate and input shutter angle, but allowing a decoder to generate a video output at a different output frame rate and shutter angle than the corresponding input values. Techniques allowing a decoder to decode more computationally-efficiently a specific backward compatible target frame rate and shutter angle among those allowed are also presented.

Frame-rate scalable video coding

Metadata and methods for variable-frame rate (VFR) video playback are presented. Proposed metadata include syntax parameters related to the presentation time duration, picture source type (e.g., original, duplicate, or interpolated), picture position in a scene (e.g., first, last, or in the middle), and motion-related information with respect to a previous picture. A decoder may use these metadata to apply appropriate frame-rate conversion techniques to reduce artifacts during VFR playback.

Picture metadata for variable frame-rate video

Methods and systems for chromatic ambient-light support are provided. Given an input surround correlated color temperature (CCT), its normalized value is mapped to a preferred gray CCT value using a sigmoid-like function model generated based on viewer experimental data. The preferred gray CCT value is then mapped to an adjusted CCT value so that viewing conditions on a display with the input surround CCT value match a D65 surround CCT value.

Chromatic ambient light correction

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Campbell, CA, United States of America

Robin Atkins