Broadcasting signal transmission device, broadcasting signal reception device, broadcasting signal transmission method, and broadcasting signal reception method

• US 10,270,989 B2
• Filed: 04/22/2016
• Issued: 04/23/2019
• Est. Priority Date: 04/22/2015
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Oh, Sejin, Hwang, Soojin, Suh, Jongyeul, Oh, Hyunmook
• Primary Examiner(s): Pierorazio, Michael B.
• Application Number:
  US15/557,343
• Publication Number:
  US 20180109743A1
• Time in Patent Office: 1,096 Days
• Field of Search: 725116
• CPC Class Codes: H04N 1/6019 using look-up tables H04N1/6025 takes precedence
• CPC Class Codes: H04N 21/23439 for generating different versions
• CPC Class Codes: H04N 21/235 Processing of additional data, e.g. scrambling of additional data or processing content descriptors
• CPC Class Codes: H04N 21/2362 Generation or processing of Service Information [SI]
• CPC Class Codes: H04N 21/26258 for generating a list of items to be played back in a given order, e.g. playlist, or scheduling item distribution according to such list retrieval of multimedia data based on playlists G06F16/40
• CPC Class Codes: H04N 21/8456 by decomposing the content in the time domain, e.g. in time segments
• CPC Class Codes: H04N 25/57 Control of the dynamic range
• CPC Class Codes: H04N 7/005 using at least one opto-electrical conversion device
• CPC Class Codes: H04N 7/015 High-definition television systems

Abstract

The present invention proposes a method for transmitting a broadcasting signal. The method for transmitting a broadcasting signal according to the present invention proposes a system which can support a next-generation broadcasting service in an environment that supports a next-generation hybrid broadcasting using a terrestrial broadcasting network and an Internet network. In addition, the present invention proposes an efficient signaling method which can cover both the terrestrial broadcasting network and the Internet network in the environment that supports the next-generation hybrid broadcasting.

Claims

1. A method of transmitting a broadcast signal, the method comprising:

generating video data and HDR (High Dynamic Range) configuration information including information related to a dynamic range of the video data;

generating a segment including the generated video data and an MPD (Media Presentation Description) including the generated HDR configuration information;

generating the broadcast signal including the generated segment and the generated MPD; and

transmitting the generated broadcast signal,

wherein the HDR configuration information includes OETF (optoelectronic transfer function) identification information for identifying an OETF applied to the video data, maximum luminance information indicating a maximum luminance of a mastering display for mastering the video data, minimum luminance information indicating a minimum luminance of the mastering display for mastering the video data, maximum frame luminance information indicating a maximum average luminance of a frame including the video data, maximum pixel luminance information indicating a maximum pixel luminance of the video data, and minimum pixel luminance information indicating a minimum pixel luminance of the video data.

2. The method according to claim 1, wherein the HDR configuration information further includes HDR type information for identifying a parameter set including at least one of the OETF identification information, the maximum luminance information, the minimum luminance information, the maximum frame luminance information, the maximum pixel luminance information and the minimum pixel luminance information.

3. The method according to claim 2, wherein the HDR configuration information further includes at least one of information indicating whether the video data is HDR, information indicating whether the parameter set of the video data has been changed, information indicating whether the dynamic range of the video data has been changed from HDR to SDR (Standard Dynamic Range), information indicating whether the dynamic range of the video data has been changed from SDR to HDR, and information indicating whether the video data is compatible with SDR.

4. The method according to claim 3, wherein the HDR configuration information is included in at least one of a Period element, an AdaptationSet element, a Representation element, a SubRepresentation element, a ContentComponent element, a SegmentBase element, an EssentialProperty element, a SupplementaryProperty element, an Accessibility element and a Subset element in the MPD.

5. The method according to claim 1, further comprising generating at least one of HDR metadata set information for transforming SDR of the video data into HDR, transformation curve set information indicating information about a transformation curve used to transform the SDR of the video data into HDR, LUT (Look-up Table) set information indicating information about an LUT used to transform the SDR of the video data into HDR, and SDR information indicating SDR related information of the video data when the video data is SDR video data,

wherein the MPD includes at least one of the HDR metadata set information, the transformation curve set information, the LUT set information and the SDR information.

6. The method according to claim 5, wherein at least one of the HDR metadata set information, the transformation curve set information, the LUT set information and the SDR information is included in at least one of a Period element, an AdaptationSet element, a Representation element, a SubRepresentation element, a ContentComponent element, a SegmentBase element, an EssentialProperty element, a SupplementaryProperty element, an Accessibility element and a Subset element in the MPD.

7. The method according to claim 1, wherein the MPD includes a representation element including information about association of representations, the representation element includes information for identifying a representation associated with a representation described by the representation element and association type information indicating a type of association between the associated representation and the representation described by the representation element, and the association type information includes information indicating that the representation described by the representation element includes HDR related information for the associated representation, and information indicating that the representation described by the representation element includes stereoscopic information for the associated representation.

8. A method of receiving a broadcast signal, the method comprising:

receiving the broadcast signal including a segment and an MPD (Media Presentation Description), the segment including video data, the MPD including HDR (High Dynamic Range) configuration information including information related to the dynamic range of the video data;

extracting the segment and the MPD from the received broadcast signal; and

decoding video data included in the segment using the extracted MPD,

wherein the HDR configuration information includes OETF (optoelectronic transfer function) identification information for identifying an OETF applied to the video data, maximum luminance information indicating a maximum luminance of a mastering display for mastering the video data, minimum luminance information indicating a minimum luminance of the mastering display for mastering the video data, maximum frame luminance information indicating a maximum average luminance of a frame including the video data, maximum pixel luminance information indicating a maximum pixel luminance of the video data, and minimum pixel luminance information indicating a minimum pixel luminance of the video data.

9. The method according to claim 8, wherein the HDR configuration information further includes HDR type information for identifying a parameter set including at least one of the OETF identification information, the maximum luminance information, the minimum luminance information, the maximum frame luminance information, the maximum pixel luminance information and the minimum pixel luminance information.

10. The method according to claim 9, wherein the HDR configuration information further includes at least one of information indicating whether the video data is HDR, information indicating whether the parameter set of the video data has been changed, information indicating whether the dynamic range of the video data has been changed from HDR to SDR (Standard Dynamic Range), information indicating whether the dynamic range of the video data has been changed from SDR to HDR, and information indicating whether the video data is compatible with SDR.

11. The method according to claim 10, wherein the HDR configuration information is included in at least one of a Period element, an AdaptationSet element, a Representation element, a SubRepresentation element, a ContentComponent element, a SegmentBase element, an EssentialProperty element, a SupplementaryProperty element, an Accessibility element and a Subset element in the MPD.

12. The method according to claim 8, wherein, when the video data is SDR video data, the MPD includes at least one of HDR metadata set information for transforming the SDR of the video data into HDR, transformation curve set information indicating information about a transformation curve used to transform the SDR of the video data into HDR, LUT (Look-up Table) set information indicating information about an LUT used to transform the SDR of the video data into HDR, and SDR information indicating SDR related information of the video data.

13. The method according to claim 12, wherein at least one of the HDR metadata set information, the transformation curve set information, the LUT set information and the SDR information is included in at least one of a Period element, an AdaptationSet element, a Representation element, a SubRepresentation element, a ContentComponent element, a SegmentBase element, an EssentialProperty element, a SupplementaryProperty element, an Accessibility element and a Subset element in the MPD.

14. An apparatus for receiving a broadcast signal, the apparatus comprising:

a tuner to receive the broadcast signal including a segment and an MPD (Media Presentation Description), the segment including video data, the MPD including HDR (High Dynamic Range) configuration information including information related to the dynamic range of the video data; and

a hardware processor to extract the segment and the MPD from the received broadcast signal and decode video data included in the segment using the extracted MPD,

wherein the HDR configuration information includes OETF (optoelectronic transfer function) identification information for identifying an OETF applied to the video data, maximum luminance information indicating a maximum luminance of a mastering display for mastering the video data, minimum luminance information indicating a minimum luminance of the mastering display for mastering the video data, maximum frame luminance information indicating a maximum average luminance of a frame including the video data, maximum pixel luminance information indicating a maximum pixel luminance of the video data, and minimum pixel luminance information indicating a minimum pixel luminance of the video data.

15. The apparatus according to claim 14, wherein the HDR configuration information further includes HDR type information for identifying a parameter set including at least one of the OETF identification information, the maximum luminance information, the minimum luminance information, the maximum frame luminance information, the maximum pixel luminance information and the minimum pixel luminance information.

16. The apparatus according to claim 15, wherein the HDR configuration information further includes at least one of information indicating whether the video data is HDR, information indicating whether the parameter set of the video data has been changed, information indicating whether the dynamic range of the video data has been changed from HDR to SDR (Standard Dynamic Range), information indicating whether the dynamic range of the video data has been changed from SDR to HDR, and information indicating whether the video data is compatible with SDR.

17. The apparatus according to claim 16, wherein the HDR configuration information is included in at least one of a Period element, an AdaptationSet element, a Representation element, a SubRepresentation element, a ContentComponent element, a SegmentBase element, an EssentialProperty element, a SupplementaryProperty element, an Accessibility element and a Subset element in the MPD.

18. The apparatus according to claim 14, wherein, when the video data is SDR video data, the MPD includes at least one of HDR metadata set information for transforming the SDR of the video data into HDR, transformation curve set information indicating information about a transformation curve used to transform the SDR of the video data into HDR, LUT (Look-up Table) set information indicating information about an LUT used to transform the SDR of the video data into HDR, and SDR information indicating SDR related information of the video data.

19. The apparatus according to claim 18, wherein at least one of the HDR metadata set information, the transformation curve set information, the LUT set information and the SDR information is included in at least one of a Period element, an AdaptationSet element, a Representation element, a SubRepresentation element, a ContentComponent element, a SegmentBase element, an EssentialProperty element, a SupplementaryProperty element, an Accessibility element and a Subset element in the MPD.