Patent ID: 9049431
Filing Date: 2015-06-02
Classification: H04N

Abstract:
1. A method of generating a caption over a multiplexed, stereoscopic 3D image comprising: determining a desired amount of parallax for the caption; determining initial x and y positional values for the caption from signaling used to transport the multiplexed, stereoscopic 3D image, the initial x and y positional values specifying positioning of the caption for two-dimensional (2D) output such that the initial x and y positional values are provided without conveying placement of the caption within any of a plurality of left viewpoint and right viewpoint images used by an output device to render the 3D image; adding the caption to each of the plurality of left viewpoint and right viewpoint images after determining the initial x and y positional values such that the caption added to the left viewpoint image, referred to as a left caption, is shifted relative to the initial x and y positional values and the caption added to the right viewpoint image, referred to as a right caption, is shifted relative to the initial x and y positional values, the left caption and the right caption being shifted in proportion to the desired amount of parallax; the initial x and y positional values specifying placement of the caption at a two-dimensional (2D) location within a screen of the output device used to render the 3D image, the screen defined by an x-y coordinate system where an x-axis defines a width of the screen and a y-axis defines a height of the screen, the initial x positional value defining the 2D location of the caption within the x-axis and the initial y positional value defining the 2D location of the caption within the y-axis; and shifting the left caption to appear at a first location within the x-y coordinate system and the right caption to appear at a second location within the x-y coordinate system such that: (i) the first location is different from the second location; (ii) the first location is different from the 2D location; and (iii) the second location is different from the 2D location.