Data generation apparatus, data generating method, data reproduction apparatus, and data reproducing method

• US 9,596,430 B2
• Filed: 07/10/2014
• Issued: 03/14/2017
• Est. Priority Date: 07/19/2013
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Takahashi, Ryohei, Uchimura, Kouichi, Hattori, Shinobu
• Primary Examiner(s): ADAMS, EILEEN M
• Application Number:
  US14/416,446
• Publication Number:
  US 20150208024A1
• Time in Patent Office: 978 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: G11B 20/10 Digital recording or reproducing
• CPC Class Codes: G11B 20/10527 Audio or video recording; Data buffering arrangements G11B20/12 - G11B20/18 take precedence
• CPC Class Codes: G11B 2020/10537 Audio or video recording
• CPC Class Codes: H04N 21/2343 involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements video transcoding H04N19/40; media packet handling at the source H04L65/762
• CPC Class Codes: H04N 21/431 Generation of visual interfaces for content selection or interaction; Content or additional data rendering
• CPC Class Codes: H04N 21/4402 involving reformatting operations of video signals for household redistribution, storage or real-time display details of conversion of video standards at pixel level H04N7/01; video transcoding H04N19/40; adapting incoming signals to the display format of the display terminal G09G5/005; media handling at the source in data packet switching networks H04L65/764
• CPC Class Codes: H04N 21/4854 for modifying image parameters, e.g. image brightness, contrast
• CPC Class Codes: H04N 21/8453 by locking or enabling a set of features, e.g. optional functionalities in an executable program
• CPC Class Codes: H04N 21/8543 using a description language, e.g. Multimedia and Hypermedia information coding Expert Group [MHEG], eXtensible Markup Language [XML] information retrieval of semistructured data, the underlying structure being taken into account, e.g. mark-up language structure data G06F16/80
• CPC Class Codes: H04N 5/76 Television signal recording
• CPC Class Codes: H04N 7/01 Conversion of standards , e.g. involving analogue television standards or digital television standards processed at pixel level
• CPC Class Codes: H04N 9/8205 involving the multiplexing of an additional signal and the colour video signal
• CPC Class Codes: H04N 9/87 Regeneration of colour television signals H04N9/80 takes precedence

Abstract

The present technique relates to a data generation apparatus, a data generating method, a data reproduction apparatus, and a data reproducing method capable of enabling a user to enjoy an HDR image.

HDR information designated by HDR designating information is acquired from a file storing a track of a stream including the HDR information which is configured with feature information representing features of luminance of an HDR (high dynamic range) image having a dynamic range higher than that of an STD (standard) image and conversion information representing a conversion rule of converting the one of the STD image and the HDR image into the other and a target track including the HDR designating information designating the HDR information which is to be applied to the target track of interest in the HDR information of the track. The present technique can be applied, for example, to the case of applying HDR information to a subtitle having an SMPTE-TT format using XML.

Claims

1. A data generation apparatus, comprising,

circuitry configured to generate data of markup language including an HDR storing element which stores, as an element of the markup language:

HDR information which is configured with feature information representing features of luminance of an HDR (high dynamic range) image having a dynamic range higher than that of an STD (standard) image, wherein the HDR information is included in subtitle data, and

conversion information representing a conversion rule of converting the one of the STD image and the HDR image into the other,

the conversion rule comprising at least one of a tone curve, a step function, and a polygonal line function;

wherein, as the HDR storing element, there are an element storing the feature information and an element storing the conversion information.

2. The data generation apparatus according to claim 1, wherein the HDR storing element is arranged in a predetermined element of the markup language.

3. The data generation apparatus according to claim 2, wherein the markup language is XML (Extensible Markup Language).

4. The data generation apparatus according to claim 3, wherein the HDR storing element is arranged in a tt, head, body, region, div, p, span, or set element.

5. The data generation apparatus according to claim 3, wherein the data is data having an SMPTE (Society of Motion Picture and Television Engineers)-TT (Timed Text) format.

6. A data generation apparatus, comprising:

circuitry configured to generate data of markup language including an HDR storing element which stores, as an element of the markup language;

HDR information which is configured with feature information representing features of luminance of an HDR (high dynamic range) image having a dynamic range higher than that of an STD (standard) image, wherein the HDR information is included in subtitle data, and

conversion information representing a conversion rule of converting the one of the STD image and the HDR image into the other,

the conversion rule comprising at least one of a tone curve, a step function, and a polygonal line function;

wherein the data further includes an element having a designation attribute which is defined as an attribute of designating the HDR storing element storing the HDR information which is to be applied to an image.

7. The data generation apparatus according to claim 6, wherein the HDR storing element is arranged in a predetermined element of the markup language.

8. The data generation apparatus according to claim 7, wherein the markup language is XML (Extensible Markup Language).

9. The data generation apparatus according to claim 8, wherein the HDR storing element is arranged in a tt, head, body, region, div, p, span, or set element.

10. The data generation apparatus according to claim 8, wherein the data is data having an SMPTE (Society of Motion Picture and Television Engineers)-TT (Timed Text) format.

11. A data generating method, comprising:

generating data of markup language including an HDR storing element which stores, as an element of the markup language;

HDR information which is configured with feature information representing features of luminance of an HDR (high dynamic range) image having a dynamic range higher than that of an STD (standard) image, wherein the HDR information is included in subtitle data, and

conversion information representing a conversion rule of converting the one of the STD image and the HDR image into the other,

the conversion rule comprising at least one of a tone curve, a step function, and a polygonal line function;

wherein, as the HDR storing element, there are an element storing the feature information and an element storing the conversion information.

12. A data generation apparatus, comprising,

circuitry configured to acquire HDR information stored in an HDR storing element from data of markup language including the HDR storing element which stores, as an element of the markup language:

the HDR information which is configured with feature information representing features of luminance of an HDR (high dynamic range) image having a dynamic range higher than that of an STD (standard) image, wherein the HDR information is included in subtitle data, and

conversion information representing a conversion rule of converting the one of the STD image and the HDR image into the other,

the conversion rule comprising at least one of a tone curve, a step function, and a polygonal line function;

wherein, as the HDR storing element, there are an element storing the feature information and an element storing the conversion information.

13. The data reproduction apparatus according to claim 12,

wherein the HDR storing element is arranged in a predetermined element of the markup language, and

wherein the circuitry is further configured to acquire the HDR information which is to be applied to an image displayed in the predetermined element from the HDR storing element arranged in the predetermined element.

14. The data reproduction apparatus according to claim 13, wherein the markup language is XML (Extensible Markup Language).

15. The data reproduction apparatus according to claim 14, wherein the HDR storing element is arranged in a tt, head, body, region, div, p, span, or set element.

16. The data reproduction apparatus according to claim 14, wherein the data is data having an SMPTE (Society of Motion Picture and Television Engineers)-TT (Timed Text) format.

17. A data generation apparatus, comprising,

circuitry configured to acquire HDR information stored in an HDR storing element from data of markup language including the HDR storing element which stores, as an element of the markup language:

the HDR information which is configured with feature information representing features of luminance of an HDR (high dynamic range) image having a dynamic range higher than that of an STD (standard) image, wherein the HDR information is included in subtitle data, and

conversion information representing a conversion rule of converting the one of the STD image and the HDR image into the other,

the conversion rule comprising at least one of a tone curve, a step function, and a polygonal line function;

wherein the data further includes an element having a designation attribute which is defined as an attribute of designating the HDR storing element storing the HDR information which is to be applied to an image, and

wherein the circuitry is further configured to acquire the HDR information which is to be applied to an image displayed with the element from the HDR storing element designated by the designation attribute included in the element.

18. The data reproduction apparatus according to claim 17,

wherein the HDR storing element is arranged in a predetermined element of the markup language, and

wherein the circuitry is further configured to acquire the HDR information which is to be applied to an image displayed in the predetermined element from the HDR storing element arranged in the predetermined element.

19. The data reproduction apparatus according to claim 18, wherein the markup language is XML (Extensible Markup Language).

20. The data reproduction apparatus according to claim 19, wherein the HDR storing element is arranged in a tt, head, body, region, div, p, span, or set element.

21. The data reproduction apparatus according to claim 19, wherein the data is data having an SMPTE (Society of Motion Picture and Television Engineers)-TT (Timed Text) format.

22. A data reproducing method comprising

acquiring HDR information stored in an HDR storing element from data of markup language including the HDR storing element which stores, as an element of the markup language:

the HDR information which is configured with feature information representing features of luminance of an HDR (high dynamic range) image having a dynamic range higher than that of an STD (standard) image, wherein the HDR information is included in subtitle data, and

conversion information representing a conversion rule of converting the one of the STD image and the HDR image into the other,

the conversion rule comprising at least one of a tone curve, a step function, and a polygonal line function;

wherein, as the HDR storing element, there are an element storing the feature information and an element storing the conversion information.

23. A data generating method, comprising:

generating data of markup language including an HDR storing element which stores, as an element of the markup language;

HDR information which is configured with feature information representing features of luminance of an HDR (high dynamic range) image having a dynamic range higher than that of an STD (standard) image, wherein the HDR information is included in subtitle data, and

conversion information representing a conversion rule of converting the one of the STD image and the HDR image into the other,

the conversion rule comprising at least one of a tone curve, a step function, and a polygonal line function;

wherein the data further includes an element having a designation attribute which is defined as an attribute of designating the HDR storing element storing the HDR information which is to be applied to an image.

24. A data reproducing method, comprising

acquiring HDR information stored in an HDR storing element from data of markup language including the HDR storing element which stores, as an element of the markup language:

the HDR information which is configured with feature information representing features of luminance of an HDR (high dynamic range) image having a dynamic range higher than that of an STD (standard) image, wherein the HDR information is included in subtitle data, and

conversion information representing a conversion rule of converting the one of the STD image and the HDR image into the other,

the conversion rule comprising at least one of a tone curve, a step function, and a polygonal line function;

wherein the data further includes an element having a designation attribute which is defined as an attribute of designating the HDR storing element storing the HDR information which is to be applied to an image, and

wherein the acquired HDR information which is to be applied to an image displayed with the element from the HDR storing element designated by the designation attribute included in the element.