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Methods and systems for displays with chromatic correction with differing chromatic ranges

A color correction, display technology, applied in the field of color correction methods and systems, capable of solving problems such as incorrect image artifacts

Active Publication Date: 2010-02-03
INTERDIGITAL CE PATENT HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If a monitor with a color gamut not equal to RCG (CG2) is used for the display, the image will look incorrect and the artifacts described above will appear

Method used

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  • Methods and systems for displays with chromatic correction with differing chromatic ranges
  • Methods and systems for displays with chromatic correction with differing chromatic ranges
  • Methods and systems for displays with chromatic correction with differing chromatic ranges

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Embodiment Construction

[0040] The present invention relates to color correction methods and systems for providing predictable display results on displays having different color gamuts.

[0041] This specification explains the principles of the invention. Although not described in this specification, those of ordinary skill in the art can conceive various embodiments within the principle and scope of the invention.

[0042] The purpose of the exemplary and conditional language used in this specification is to help the reader understand the principles and concepts of the present invention, which is improved by the inventor on the prior art, and the present invention is not limited to such specific examples and conditions .

[0043] Moreover, all statements reciting principles, aspects, and embodiments of the invention, as well as specific examples, are intended to encompass structural and functional equivalents. Additionally, such equivalent structures and functions include both currently known and ...

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Abstract

The invention relates to methods and systems for displays with chromatic correction with differing chromatic ranges. A method comprises carrying out a chromatic correction on the content of an image source, by means of at least one of a display of non-reference type with a non-reference chromatic range and a display of the reference type with a reference chromatic range. The above step includes reformatting (530) the content of the image source to give a reformatted image source content which has undergone a chromatic correction for display on displays of the non-reference type with a non-reference chromatic range. The above step also comprises generation (586) of metadata for mapping chromatic range which chromatically transforms the reformatted image content which has undergone a chromatic correction for display on displays of the reference type with a reference chromatic range. The source image content is only reformatted for display of the non-reference type with the non-referencechromatic range.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Patent Application 60 / 921,579, filed April 3, 2007, which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates generally to television displays and, more particularly, to color correction methods and systems for providing predictable display results on displays having different color gamuts. Background technique [0004] In today's motion picture industry, the color of motion picture content is largely graded for displays with a single color gamut defined by cathode ray tube (CRT) phosphor colors, which correspond to European Broadcasting Union (EBU) or Society of Motion Picture and Television Engineers Color Standard (SMPTE-C) for SD and International Telecommunication Union (ITU) 709 colors for HD. These are the current standards for determining the reference color gamut (RCG) for display. However, the majorit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/60H04N9/64
CPCH04N1/6058G09G5/02H04N9/64H04N1/46H04N1/465
Inventor 英戈·多塞于尔根·施陶德尔李奉顺
Owner INTERDIGITAL CE PATENT HLDG
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