Method and apparatus for processing and receiving digital broadcast signal for 3-dimensional display

Abstract

The disclosed method for processing a digital broadcast signal for a 3-dimensional, 3D, service comprises encoding video data for the 3D service into a video stream, the video data comprising a left picture and a right picture for a 3D image, generating the broadcast signal having the video data and service information for the 3D service, the service information including video depth range descriptor indicating a minimum disparity and a maximum disparity that occur during a given time window of the video stream, wherein the minimum disparity and the maximum disparity are a minimum difference and a maximum difference between horizontal positions of a pixel representing a same point in space in the left and right views of 3-dimensional image, respectively, and transmitting the digital broadcast signal for the 3D service.

1 . A method of processing a digital broadcast signal for a 3-dimensional, 3D, service, the method comprising:
 encoding video data for the 3D service into a video stream, the video data comprising a left picture and a right picture for a 3D image;   generating the broadcast signal having the video data and service information for the 3D service, the service information including video depth range descriptor indicating a minimum disparity and a maximum disparity that occur during a given time window of the video stream;   wherein the minimum disparity and the maximum disparity are a minimum difference and a maximum difference between horizontal positions of a pixel representing a same point in space in the left and right views of 3-dimensional image, respectively;   transmitting the digital broadcast signal for the 3D service.   
     
     
         2 . The method of  claim 1 , wherein the video depth range descriptor is included in a virtual channel table (VCT), wherein the VCT includes channel identification information identifying a channel from any other channel within a transport stream (TS), and the video depth range descriptor identifies the minimum and minimum disparity for the service identified by the service identification information. 
     
     
         3 . The method of  claim 1 , wherein the video depth range descriptor is included in a event information table (EIT), wherein the EIT includes event identification information identifying an event within a channel, and the video depth range descriptor identifies the minimum and minimum disparity for the event identified by the event identification information. 
     
     
         4 . The method of  claim 1 , wherein the service information further includes application selection information indicating range during which information in the video depth range descriptor is applied for the 3D service. 
     
     
         5 . The method of  claim 4 , wherein the application selection information includes scene start time information indicating starting time of a scene included in the 3D service for application of the information in the video depth range descriptor. 
     
     
         6 . The method of  claim 4 , wherein the application information includes scene duration information indicating duration of a scene included in the 3D service for application of the information in the video depth range descriptor. 
     
     
         7 . An apparatus for receiving a digital broadcast signal for a 3-dimensional, 3D, service, the apparatus comprising:
 a receiving unit configured to receive the broadcast signal having video data and service information for the 3D service, the video data being encoded for the 3D service into a video stream, the video data comprising a left picture and a right picture for a 3D image, the service information including video depth range descriptor indicating a minimum disparity and a maximum disparity that occur during a given time window of the video stream,   wherein the minimum disparity and the maximum disparity are a minimum difference and a maximum difference between horizontal positions of a pixel representing a same point in space in the left and right views of 3-dimensional image, respectively;   a signaling processor configured to parse the video depth range descriptor; and   a decoder configured to decode the video data.   
     
     
         8 . The apparatus of  claim 7 , further comprising:
 a displaying processor configured to control on screen display (OSD) menu of the apparatus to be displayed on top of the 3D image based on information in the video depth range descriptor.   
     
     
         9 . The apparatus of  claim 7 , wherein the signaling processor further configured to parse a virtual channel table (VCT) including channel identification information identifying a channel from any other channel within a transport stream (TS), and the video depth range descriptor included in the VCT for identifying the minimum and minimum disparity for the channel identified by the channel identification information. 
     
     
         10 . The apparatus of  claim 7 , wherein the signaling processor further configured to parse a event information table (EIT) including event identification information identifying an event within a channel, and the video depth range descriptor included in the EIT for identifying the minimum and minimum disparity for the event identified by the event identification information. 
     
     
         11 . The apparatus of  claim 7 , wherein the signaling processor further configured to parse application selection information indicating range during which information in the video depth range descriptor is applied for the 3D service from the service information. 
     
     
         12 . The apparatus of  claim 11 , wherein the signaling processor further configured to parse scene start time information indicating starting time of a scene included in the 3D service for application of the information in the video depth range descriptor from the application selection information. 
     
     
         13 . The apparatus of  claim 11 , wherein the signaling processor further configured to parse scene duration information indicating duration of a scene included in the 3D service for application of the information in the video depth range descriptor from the application selection information. 
     
     
         14 . The apparatus of  claim 13 , wherein the displaying processor configured to control on screen display (OSD) menu of the apparatus to be displayed on top of the 3D image during the duration of the scene included in the 3D service based on information in the video depth range descriptor and the scene duration information.