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Data generation method, data reproduction method, data generation device and data reproduction device

  • US 10,123,392 B2
  • Filed: 01/31/2018
  • Issued: 11/06/2018
  • Est. Priority Date: 12/03/2014
  • Status: Active Grant
First Claim
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1. A data generation method for generating video data that covers a second luminance dynamic range wider than a first luminance dynamic range and has reproduction compatibility with a first device that does not support reproduction of video having the second luminance dynamic range and supports reproduction of video having the first luminance dynamic range, the data generation method comprising:

  • generating a video signal to be included in the video data using a second opto-electrical transfer function (OETF) to be referred to by a second device when the second device decodes the video data, the second device supporting reproduction of video having the second luminance dynamic range;

    storing, into video usability information (VUI) in the video data, first transfer function information for identifying a first OETF to be referred to by the first device when the first device decodes the video data; and

    storing, into supplemental enhancement information (SEI) in the video data, second transfer function information for identifying the second OETF.

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