System and methods to efficiently measure stereoscopic disparity and to generate related mismatch images
First Claim
Patent Images
1. A method, comprising:
- accepting a left-eye image and a right-eye image of a stereoscopic image;
creating a set of differential data from differences between at least a portion of the left image and at least a portion of the right image by performing a set of pixelwise comparisons between the portion of the left image to the portion of the right image in which, for each pixelwise comparison, the portion of the left image and the portion of the right image are incrementally shifted relative to each other;
generating a two-dimensional mismatch image in which each pixel of a line of the mismatch image corresponds to one of the set of pixelwise comparisons; and
assigning a color to each pixel of the mismatch image, in which the color is indicative of a level of match of the set of differential data.
4 Assignments
0 Petitions
Accused Products
Abstract
Embodiments of the invention include a system and methods for measuring disparity and mismatch of stereoscopic images of three-dimensional video, which may indicate a level of discomfort on the part of the viewer. Measuring these parameters may also be used to give an indication that certain processes have or have not adversely effected perceived depth (i.e. through conversion from disparity to depth given a display size and viewing distance), verify camera setup or 2-dimension to 3-dimension synthesizing processes. Generating the indications and other data about the stereoscopic images uses techniques that allow processing with much less computing resources than was possible in previous systems.
-
Citations
20 Claims
-
1. A method, comprising:
-
accepting a left-eye image and a right-eye image of a stereoscopic image; creating a set of differential data from differences between at least a portion of the left image and at least a portion of the right image by performing a set of pixelwise comparisons between the portion of the left image to the portion of the right image in which, for each pixelwise comparison, the portion of the left image and the portion of the right image are incrementally shifted relative to each other; generating a two-dimensional mismatch image in which each pixel of a line of the mismatch image corresponds to one of the set of pixelwise comparisons; and assigning a color to each pixel of the mismatch image, in which the color is indicative of a level of match of the set of differential data. - View Dependent Claims (2, 3, 4)
-
-
5. A method of generating differential data from a stereoscopic image having a left-eye image and a right-eye image, the method comprising:
-
vertically downsampling at least one of the left-eye image and the right-eye image into a set of downsampled image lines; creating an unsharp mask for a downsampled image line of the set of downsampled image lines by filtering the downsampled image line with an IIR low pass filter to create a filtered downsampled image line and removing the filtered downsampled image line from the downsampled image line; and generating a set of difference data for the downsampled image line by comparing the downsampled image line to its own unsharp mask and storing the comparison, the set of difference data comprising absolute value differences. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12)
-
-
13. An image processing device, comprising:
-
an input for receiving a stereoscopic video including a left-eye image and a right-eye image; a difference measurer structured to generate a set of outputs corresponding to a plurality of comparisons between the left-eye image and the right-eye image, the comparisons made at a plurality of relative shifts between the left-eye image and right-eye image; and a mismatch image creator structured to accept the set of outputs of the difference measurer as an input, to generate a two-dimensional mismatch image, and to assign a color to each region of the mismatch image, in which each region of the mismatch image corresponds to one of the set of outputs and the assigned color is indicative of an amount of relative disparity between portions of the left-eye image and the right-eye image for one of the plurality of relative shifts. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
-
Specification