Broadcast receiver and 3D subtitle data processing method thereof

摘要

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.

主权项

1. A method of processing a 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 the 3D content; generating signaling information for the video data, wherein the signaling information includes subtitling descriptor including subtitling type information, wherein the subtitling type information indicates that type of subtitle is a 3D subtitle with disparity information for the 3D content; generating packet data including subtitle segment for subtitling of the 3D content; and transmitting the broadcast signal including the video data, the packet data and the signaling information, wherein the subtitle segment includes a segment type information indicating type of data in the subtitle segment, a page identifier indicating a page on which the 3D subtitle is displayed, region information identifying at least one region within the page, object part horizontal position indicating a horizontal position of the top left pixel of an object part in the at least one region, and the 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 content for the page, and wherein the subtitle segment further includes region size information specifying a horizontal width of the at least one region which is expressed in pixels.