Title:
VIDEO PROCESSING DEVICE, DISPLAY APPARTUS, VIDEO PROCESSING METHOD, CONTROL PROGRAM, AND RECORDING MEDIUM
Document Type and Number:
WIPO Patent Application WO/2019/039111
Kind Code:
A1
Abstract:
The present invention efficiently converts, even in a display apparatus that supports an SDR signal, a gradation characteristic indicated by an HDR signal into a gradation characteristic suitable to the display apparatus to improve display quality. A video processing device (2) is provided with: a virtual maximum luminance level setting unit (4) which sets a virtual maximum luminance level that does not exceed a maximum luminance level indicated by metadata included in a video signal; and a gradation value conversion unit (5) which converts gradation values corresponding to luminance levels lower than or equal to the virtual maximum luminance level among gradation values taken by respective pixels in the video signal.
Inventors:
KANDA TAKASHI
SHIMODA HIRONORI
SHIMODA HIRONORI
Application Number:
PCT/JP2018/025554
Publication Date:
February 28, 2019
Filing Date:
July 05, 2018
Export Citation:
Assignee:
SHARP KK (JP)
International Classes:
H04N5/66; G09G3/20; G09G5/00; G09G5/10; G09G5/391; H04N5/20
Domestic Patent References:
| WO2017110823A1 | 2017-06-29 | |||
| WO2015198554A1 | 2015-12-30 |
Foreign References:
| JP2016149753A | 2016-08-18 | |||
| JPH07226863A | 1995-08-22 | |||
| JP2006109327A | 2006-04-20 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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