Title:
Devices and methods for improving perceptual luminance nonlinearity-based image data exchange between different display functions
Document Type and Number:
Japanese Patent JP6366641
Kind Code:
B2
Abstract:
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.
Inventors:
Miller, John Scott
Scott Dally
Nezama Buddy, Mahdi
Atkins, Robin
Scott Dally
Nezama Buddy, Mahdi
Atkins, Robin
Application Number:
JP2016114271A
Publication Date:
August 01, 2018
Filing Date:
June 08, 2016
Export Citation:
Assignee:
Dolby Laboratories Licensing Corporation
International Classes:
H04N9/64; G09G5/00; G09G5/02; G09G5/10; G09G5/36; H04N7/01; H04N21/431
Domestic Patent References:
| JP2009211048A | ||||
| JP2011133877A | ||||
| JP2005303972A | ||||
| JP2008234315A |
Other References:
PEIRCE, Jonathan W.,The potential importance of saturating and supersaturating contrast response functions in visual cortex,journal of Vision,米国,National Center for Biotechnology Information(NCBI),2007年 4月30日,Vol.7(6):13,p.1-3,[検索日 2017.07.10], インターネット:
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Shinsuke Onuki
Tadahiko Ito
Shinsuke Onuki