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US 2016/0261845 A1Published application
Coherent Motion Estimation for Stereoscopic Video
AssigneeDolby Laboratories Licensing Corporation
InventorsNing XU, Georgios GEORGIADIS, James E. CRENSHAW
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Abstract
Methods and systems for enhancing motion estimation are disclosed for stereoscopic video sequences. The motion vector parameters and disparity values for consecutive frames may be calculated to estimate motion in a coherent manner between two channels, such as a left channel and a right channel in stereoscopic images. Occlusion handling is also applied to improve the estimation.
Claims20
A method to estimate motion of pixels in an image pair with a computer, the method comprising:
- providing, by a computer, a first and a second video frame at a first time value, the first and the second video frames forming a stereoscopic image at the first time value;
- generating, by a computer and for at least one pixel, a first disparity value for the at least one pixel between the first and second video frames;
- storing the first disparity value in a first memory location;
- generating two motion vector parameters for the at least one pixel between the first and second video frames and a third and a fourth video frame at a second time value, the third and the fourth video frames forming a stereoscopic image at the second time value;
- storing the two motion vector parameters in a second memory location;
- generating a second disparity value for the at least one pixel between the third and fourth video frames at the second time value;
- storing the second disparity value in a third memory location;
- estimating a coherent motion of the at least one pixel, based on the first disparity value, the two motion vector parameters, and the second disparity value;
- and
- storing estimated coherent motion values in a fourth memory location,
- wherein the estimating a coherent motion of the at least one pixel comprises minimizing a cost function.
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