Data generation method, data reproduction method, data generation device and data reproduction device
First Claim
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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Abstract
A data generation method is 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, and includes: generating a video signal to be included in the video data using a second OETF; storing, into 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 SEI in the video data, second transfer function information for identifying a second OETF to be referred to by a second device supporting reproduction of video having the second luminance dynamic range when the second device decodes the video data.
16 Citations
20 Claims
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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:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A data reproduction method for reproducing 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 video data including:
- video usability information (VUI) storing first transfer function information for identifying a first opto-electrical transfer function (OETF) to be referred to by the first device when the first device decodes the video data; and
supplemental enhancement information (SEI) storing second transfer function information for identifying a second 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, the data reproduction method comprising;obtaining the second transfer function information included in the SEI; and reproducing a video signal included in the video data by referring to the second OETF identified in the second transfer function information obtained. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
- video usability information (VUI) storing first transfer function information for identifying a first opto-electrical transfer function (OETF) to be referred to by the first device when the first device decodes the video data; and
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19. A data generation device which generates 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 device comprising:
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a generator that generates 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; a first storage that stores, 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 a second storage that stores, into supplemental enhancement information (SEI) in the video data, second transfer function information for identifying the second OETF.
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20. A data reproduction device which reproduces 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 video data including:
- video usability information (VUI) storing first transfer function information for identifying a first opto-electrical transfer function (OETF) to be referred to by the first device when the first device decodes the video data; and
supplemental enhancement information (SEI) storing second transfer function information for identifying a second 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, the data reproduction device comprising;an obtainer that obtains the second transfer function information included in the SEI; and a reproducer that reproduces a video signal included in the video data by referring to the second OETF identified in the second transfer function information obtained.
- video usability information (VUI) storing first transfer function information for identifying a first opto-electrical transfer function (OETF) to be referred to by the first device when the first device decodes the video data; and
Specification