Patent ID: 8866886
Filing Date: 2014-10-21
Classification: H04N

Abstract:
1. A method for processing a digital broadcast signal including a 3-dimensional, 3D, content, the method comprising: encoding 3D video data for the 3D content, the 3D video data including a left picture for a left view and a right picture for a right view for a 3D image; generating signaling data including a subtitle segment having information for signaling 3D subtitles for the 3D content, wherein the subtitle segment includes region identification information identifying multiple regions for the 3D subtitles, and sub-region disparity information indicating values of disparities applied to each of sub-regions included in each of the multiple regions of the 3D image for the 3D subtitles when each region is divided into the sub-regions, wherein when there are two or more 3D subtitles in a sub-region a value of the values of the disparities is applied simultaneously to all 3D subtitles included in the sub-region, wherein the disparity is a difference between horizontal positions of a pixel representing a same point in space in the right and left view of the 3D image, wherein the region is an area for displaying the 3D subtitles on a 3D display and the sub-region is a certain area included in the region, wherein the signaling data further includes region horizontal address information indicating a horizontal address of a top left pixel of the region and region vertical address information indicating a vertical address of a top line of the region, and wherein the subtitle segment further includes sub-region horizontal information specifying horizontal position of each of the sub-regions in the region, and sub-region width information specifying horizontal width of each of the sub-regions in the region; and transmitting the digital broadcast signal including the encoded 3D video data and generated signaling data, wherein the subtitle segment further includes sub-region extent information indicating whether the region includes more than one sub-region or not.