Reproduction device, reproduction method, and recording medium

• US 10,469,817 B2
• Filed: 04/16/2019
• Issued: 11/05/2019
• Est. Priority Date: 06/24/2013
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Uchimura, Kouichi, Takahashi, Ryohei
• Primary Examiner(s): Adams, Eileen M
• Application Number:
  US16/385,206
• Publication Number:
  US 20190246086A1
• Time in Patent Office: 203 Days
• Field of Search: None
• CPC Class Codes: G11B 20/10 Digital recording or reproducing
• CPC Class Codes: G11B 2220/2541 Blu-ray discs; Blue laser DVR discs
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/329 on a disc [VTOC]
• CPC Class Codes: H04N 19/30 using hierarchical techniques, e.g. scalability H04N19/63 takes precedence
• CPC Class Codes: H04N 19/40 using video transcoding, i.e. partial or full decoding of a coded input stream followed by re-encoding of the decoded output stream
• CPC Class Codes: H04N 19/46 Embedding additional information in the video signal during the compression process H04N19/517, H04N19/68, H04N19/70 take precedence
• CPC Class Codes: H04N 5/76 Television signal recording
• CPC Class Codes: H04N 9/793 for controlling the level of the chrominance signal, e.g. by means of automatic chroma control circuits
• CPC Class Codes: H04N 9/8205 involving the multiplexing of an additional signal and the colour video signal
• CPC Class Codes: H04N 9/8707 using a demodulator and a remodulator, e.g. for standard conversion

Abstract

The present technology relates to a reproduction device, a reproduction method, and a recording medium capable of displaying graphics with a broader dynamic range of luminance and appropriate brightness.

An optical disc records STN_table associating HDR graphics, which are graphics having a second luminance range different from and broader than a first luminance range, with tone_mapping_info including HDR information indicating a luminance characteristic of the HDR graphics and tone_mapping_info, which is tone mapping definition information used when luminance conversion from the HDR graphics to STD graphics which are graphics having the first luminance range is performed, the HDR graphics, and the tone_mapping_info. The present technology is applicable to a recording medium recording graphics.

Claims

1. A reproduction device, comprising:

circuitry configured to;

receive display information of a display device, brightness characteristic information, and first data including coded video and coded graphics,

wherein a first brightness range of the first data is wider than a second brightness range of second data,

decode the first data that includes the coded video and the coded graphics,

convert the decoded first data to the second data,

control output of the first data, the brightness characteristic information, and the second data to the display device based on the display information.

2. The reproduction device according to claim 1, wherein the circuitry is further configured to output the first data and the brightness characteristic information based on the display information to the display device, and wherein the first brightness range of the first data is wider than the second brightness range.

3. The reproduction device according to claim 1, wherein the circuitry is further configured to output the second data, having the second brightness range, based on the display information to the display device.

4. The reproduction device according to claim 1, wherein the first data is decoded based on High Efficiency Video Coding (HEVC) scheme.

5. The reproduction device according to claim 1, wherein values of Y, Cr, and Cb of the coded graphics are obtained based on the decoded coded graphics.

6. The reproduction device according to claim 1, wherein the first data is decoded based on tone mapping definition information.

7. The reproduction device according to claim 1, wherein the conversion of the decoded first data to the second data is based on tone mapping definition information.

8. A reproduction method, comprising:

in a reproduction device;

receiving display information of a display device, brightness characteristic information, and first data including coded video and coded graphics,

wherein a first brightness range of the first data is wider than a second brightness range of second data,

decoding the first data that includes the coded video and the coded graphics,

converting the decoded first data to the second data,

controlling output of the first data, the brightness characteristic information, and the second data to the display device based on the display information.

9. The reproduction method according to claim 8, further comprising outputting the first data and the brightness characteristic information based on the display information to the display device, wherein the first brightness range of the first data is wider than the second brightness range.

10. The reproduction method according to claim 8, further comprising outputting the second data, having the second brightness range, based on the display information, to the display device.

11. The reproduction method according to claim 8, wherein the decoding of the first data is based on High Efficiency Video Coding (HEVC) scheme.

12. The reproduction method according to claim 8, wherein values of Y, Cr, and Cb of the coded graphics are obtained based on the decoding of the coded graphics.

13. The reproduction method according to claim 8, wherein the decoding of the first data is based on tone mapping definition information.

14. The reproduction method according to claim 8, wherein the conversion of the decoded first data to the second data is based on tone mapping definition information.