Broadcast receiver and 3D subtitle data processing method thereof
AssigneeLG Electronics Inc.
InventorsJong Yeul Suh, Jin Pil Kim, Ho Taek Hong
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Abstract
A broadcast receiver and a 3D subtitle data processing method thereof are disclosed. A method for processing three dimensional (3D) subtitle data includes receiving, by a receiver, a broadcast signal including 3D subtitle data, extracting, by an extracting unit, subtitle display information for a base view and extended subtitle display information for an extended view from the 3D subtitle data, and controlling, by a controller, a 3D subtitle display using the subtitle display information for the base view and the extended subtitle display information for the extended view.
Claims8
A method of processing a digital broadcast signal for a 3-dimensional, 3D, content, the method comprising:
- encoding video data for the 3D content into a stream, the video data comprising a left picture for a left view and a right picture for a right view for a 3D image;
- generating signaling information for the video data, the signaling information including a Program Map table (PMT) providing a mapping between a program number and program elements of a program including the 3D content,
- wherein the PMT includes subtitling descriptor including subtitling type information, and
- wherein the subtitling type information indicates an existence of a 3D subtitle for the 3D content;
- generating packet data for subtitling of the 3D content, the packet data including subtitle segment,
- wherein the subtitle segment includes disparity information indicating a difference between horizontal positions of subtitles representing a same point in space in the right and left view of the 3D image for a page;
- and
- transmitting the broadcast signal including the video data, the packet data, and the signaling information;
- wherein the subtitle segment further includes region information identifying at least one region within the page, and region disparity information indicating differences between horizontal positions of subtitles in the at least one region identified by the region information;
- wherein the subtitle segment further includes region size information specifying a horizontal width of the at least one region which is expressed in pixels.
An apparatus for receiving a digital broadcast signal for a 3-dimensional, 3D, content, the method comprising:
- a receiving unit configured to receive a broadcast signal including video data for the 3D content, wherein the video data comprise a left picture for a left view and a right picture for a right view for a 3D image;
- signaling information for the video data, the signaling information including a Program Map table (PMT) and to extract packet data for subtitling of the 3D content from the received broadcast signal,
- wherein the PMT includes subtitling descriptor including subtitling type information,
- wherein the subtitling type information indicates an existence of a 3D subtitle for the 3D content,
- wherein the packet data includes a subtitle segment, and
- wherein the subtitle segment includes disparity information indicating a difference between horizontal positions of subtitles representing a same point in space in the right and left view of the 3D image for a page;
- a controller configured to control a display of subtitle in the 3D image for the 3D content based on the subtitling type information and the subtitle segment;
- wherein the subtitle segment further includes region information identifying at least one region within the page, and region disparity information indicating differences between horizontal positions of subtitles in the at least one region identified by the region information;
- wherein the subtitle segment further includes region size information specifying a horizontal width of the at least one region which is expressed in pixels;
- wherein the subtitle segment further includes region size information specifying a horizontal width of the at least one region which is expressed in pixels.
Dependencies are inferred from the claim text.