Efficient sub-pixel disparity estimation for all sub-aperture images from densely sampled light field cameras
AssigneeIntel Corporation
InventorsYi Wu, Shaojun Yao, Yong Jiang
Life of this patent
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Abstract
A system for sub-pixel disparity estimation is described herein. The system includes a plenoptic camera, a memory, and a processor. The memory is configured to store imaging data. The processor is \coupled to the memory and the plenoptic camera. The processor is to obtain a plurality of sub-aperture views, select a subset of sub-aperture views as reference views for a disparity calculation, and calculate an integer disparity for the reference views. The processor is also to refine the integer disparity to sub-pixel disparity accuracy for the reference views and propagate the sub-pixel disparity from the reference views to other views of the plurality of sub-aperture views.
Claims25
A system for sub-pixel disparity estimation, comprising:
- a plenoptic camera;
- a memory configured to store imaging data;
- and
- a processor coupled to the memory and the plenoptic camera, the processor to:
- obtain a plurality of sub-aperture views;
- select a subset of the sub-aperture views as reference views for a disparity calculation;
- calculate an integer disparity for the reference views;
- refine the integer disparity to sub-pixel disparity accuracy for the reference views;
- and
- propagate the sub-pixel disparity from the reference views to other views of the plurality of sub-aperture views.
A method for sub-pixel disparity estimation, comprising:
- obtaining a plurality of sub-aperture views;
- selecting a subset of the sub-aperture views as reference views for a disparity calculation;
- calculating an integer disparity for the reference views;
- refining the integer disparity to sub-pixel disparity accuracy for the reference views;
- and
- propagating the sub-pixel disparity from the reference views to other views of the plurality of sub-aperture views.
An apparatus for sub-pixel disparity estimation, comprising:
- a plenoptic camera to capture a plurality of sub-aperture views;
- a reference view mechanism to select a subset of the sub-aperture views as reference views for a disparity calculation;
- a controller to calculate an integer disparity for the reference views and refine the integer disparity to sub-pixel disparity accuracy for the reference views;
- and
- a propagation mechanism to propagate the sub-pixel disparity from the reference views to other views of the plurality of sub-aperture views.
A tangible, non-transitory, computer-readable medium comprising instructions that, when executed by a processor, direct the processor to:
- obtain a plurality of sub-aperture views;
- select a subset of the sub-aperture views as reference views for a disparity calculation;
- calculate an integer disparity for the reference views;
- refine the integer disparity to sub-pixel disparity accuracy for the reference views;
- and
- propagate the sub-pixel disparity from the reference views to other views of the plurality of sub-aperture views.
Dependencies are inferred from the claim text.