Stereo image data transmitting apparatus, stereo image data transmitting method, stereo image data receiving apparatus, and stereo image data receiving method

A stereo image data transmitting method comprising:

• an image data output step of outputting stereo image data including left-eye image data and right-eye image data;
• a superimposition information data output step of outputting data of superimposition information that is to be superimposed on images that are based on the left-eye image data and the right-eye image data;
• a disparity information output step of outputting disparity information for giving disparity by shifting the superimposition information that is to be superimposed on the images that are based on the left-eye image data and the right-eye image data;
• and
• a data transmitting step of transmitting a multiplexed data stream including a first data stream and a second data stream, the first data stream including the stereo image data output in the image data output step, the second data stream including the data of the superimposition information output in the superimposition information data output step and the disparity information output in the disparity information output step,
• wherein the second data stream includes a data unit for transmitting display control information about the superimposition information, and
• wherein the data unit includes the disparity information inserted thereinto.

A stereo image data receiving apparatus comprising:

• a data receiving unit that receives a multiplexed data stream including a first data stream and a second data stream,
• the first data stream including stereo image data including left-eye image data and right-eye image data for displaying a stereo image,
• the second data stream including data of superimposition information that is to be superimposed on images that are based on the left-eye image data and the right-eye image data and disparity information for giving disparity by shifting the superimposition information that is to be superimposed on the images that are based on the left-eye image data and the right-eye image data,
• the second data stream including a data unit for transmitting display control information about the superimposition information, the disparity information being inserted into the data unit;
• an image data obtaining unit that obtains the stereo image data from the first data stream included in the multiplexed data stream received by the data receiving unit;
• a superimposition information data obtaining unit that obtains the data of the superimposition information from the second data stream included in the multiplexed data stream received by the data receiving unit;
• a disparity information obtaining unit that obtains the disparity information from the second data stream included in the multiplexed data stream received by the data receiving unit;
• and
• an image data processing unit that gives disparity to the same superimposition information that is to be superimposed on a left-eye image and a right-eye image using the left-eye image data and the right-eye image data included in the stereo image data obtained by the image data obtaining unit, the disparity information obtained by the disparity information obtaining unit, and the data of the superimposition information obtained by the superimposition information data obtaining unit, thereby obtaining data of the left-eye image on which the superimposition information is superimposed and data of the right-eye image on which the superimposition information is superimposed.

A stereo image data receiving method comprising:

• a data receiving step of receiving a multiplexed data stream including a first data stream and a second data stream,
• the first data stream including stereo image data including left-eye image data and right-eye image data for displaying a stereo image,
• the second data stream including data of superimposition information that is to be superimposed on images that are based on the left-eye image data and the right-eye image data and disparity information for giving disparity by shifting the superimposition information that is to be superimposed on the images that are based on the left-eye image data and the right-eye image data,
• the second data stream including a data unit for transmitting display control information about the superimposition information, the disparity information being inserted into the data unit;
• an image data obtaining step of obtaining the stereo image data from the first data stream included in the multiplexed data stream received in the data receiving step;
• a superimposition information data obtaining step of obtaining the data of the superimposition information from the second data stream included in the multiplexed data stream received in the data receiving step;
• a disparity information obtaining step of obtaining the disparity information from the second data stream included in the multiplexed data stream received in the data receiving step;
• and
• an image data processing step of giving disparity to the same superimposition information that is to be superimposed on a left-eye image and a right-eye image using the left-eye image data and the right-eye image data included in the stereo image data obtained in the image data obtaining step, the disparity information obtained in the disparity information obtaining step, and the data of the superimposition information obtained in the superimposition information data obtaining step, thereby obtaining data of the left-eye image on which the superimposition information is superimposed and data of the right-eye image on which the superimposition information is superimposed.