| 摘要 |
<P>PROBLEM TO BE SOLVED: To maintain consistency of perspective between captions(caption units) by ARIB standards and individual objects in an image, when performing overlay display of the captions. <P>SOLUTION: A multiplexed data stream having a video data stream and a caption data stream is transmitted from a broadcasting station to a set-top box. The video data stream includes stereoscopic image data. In the caption data stream, caption data for each of the caption units is inserted as caption sentence data (a caption code) of a caption sentence data group. Also in the caption data stream, a parallax vector for each of the caption units is inserted as caption control data (a control code) of a caption control data group. From such a method of insertion, the caption data is mapped with the parallax vector. In a receiving side, an appropriate parallax is applied to a caption to be overlaid on a left-eye image and a right-eye image, by using a parallax vector associating with each caption. <P>COPYRIGHT: (C)2012,JPO&INPIT |
