IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD
First Claim
1. An image processing apparatus comprising:
- a calculating unit configured to calculate correlation values of captured images of a plurality of pairs of viewpoints, using captured images of the viewpoints; and
a generating unit configured to generate parallax images of different hierarchical levels of a reference viewpoint based on the correlation values calculated by the calculating unit, the parallax images being a viewpoint parallax image formed with a disparity value of the reference viewpoint and an occlusion parallax image formed with a disparity value of an occlusion region, the reference viewpoint being one of the viewpoints.
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Abstract
The present disclosure relates to an image processing apparatus and an image processing method that enable high-precision generation of parallax images of viewpoints with a small amount of calculation.
A correlation generating unit calculates correlation values of captured images of pairs of viewpoints, using captured images of viewpoints. A generating unit generates parallax images of different hierarchical levels of a reference viewpoint based on the correlation values. The parallax images are a parallax image formed with the disparity value of the reference viewpoint, and a parallax image formed with the disparity value of an occlusion region. The reference viewpoint is one of the viewpoints. The present disclosure can be applied to the image processing apparatus of a light field camera, for example.
23 Citations
10 Claims
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1. An image processing apparatus comprising:
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a calculating unit configured to calculate correlation values of captured images of a plurality of pairs of viewpoints, using captured images of the viewpoints; and a generating unit configured to generate parallax images of different hierarchical levels of a reference viewpoint based on the correlation values calculated by the calculating unit, the parallax images being a viewpoint parallax image formed with a disparity value of the reference viewpoint and an occlusion parallax image formed with a disparity value of an occlusion region, the reference viewpoint being one of the viewpoints. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An image processing method comprising:
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a calculation step of calculating correlation values of captured images of a plurality of pairs of viewpoints, using captured images of the viewpoints; and a generation step of generating parallax images of different hierarchical levels of a reference viewpoint based on the correlation values calculated in the calculation step, the parallax images being a viewpoint parallax image formed with a disparity value of the reference viewpoint and an occlusion parallax image formed with a disparity value of an occlusion region, the reference viewpoint being one of the viewpoints, the calculation step and the generation step being carried out by an image processing apparatus.
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9. An image processing apparatus comprising:
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a calculating unit configured to calculate correlation values of captured images of a plurality of pairs of viewpoints, using captured images of the viewpoints; and a generating unit configured to generate a viewpoint parallax image based on a table associating a pattern of the correlation values of the respective pairs with a predetermined pair among the pairs of viewpoints, the viewpoint parallax image being generated from a highest correlation disparity value as a disparity value corresponding to a highest correlation value of the predetermined pair, the viewpoint parallax image being formed with a disparity value of a reference viewpoint, the reference viewpoint being one of the viewpoints.
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10. An image processing method comprising:
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a calculation step of calculating correlation values of captured images of a plurality of pairs of viewpoints, using captured images of the viewpoints; and a generation step of generating a viewpoint parallax image based on a table associating a pattern of the correlation values of the respective pairs with a predetermined pair among the pairs of viewpoints, the viewpoint parallax image being generated from a highest correlation disparity value as the disparity value corresponding to the highest correlation value of the predetermined pair, the viewpoint parallax image being formed with a disparity value of a reference viewpoint, the reference viewpoint being one of the viewpoints, the calculation step and the generation step being carried out by an image processing apparatus.
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Specification