Extended color processing on pelican array cameras
First Claim
1. A method of generating an image of a scene using a camera array including at least one camera that captures an RGB image of a scene and at least one camera that captures a black and white (B/W) image of the scene, the method comprising:
- obtaining input images captured by a plurality of cameras that includes a camera that captures an RGB image and a camera that captures a B/W image, where the input images includes a first RGB input image that includes image information captured in at least three channels (RGB) of information and a second B/W input image that includes image information captured in a single black and white (B/W) channel of information;
generate a fused image using a processor configured by software to;
measure parallax using the input images captured by the plurality of cameras to produce a depth map;
normalize the second B/W input image in the photometric reference space of the first RGB input image;
cross-channel normalize the first RGB input image with respect to the B/W input image by applying gains and offsets to pixels of the first RGB input image; and
perform cross-channel fusion using the first RGB input image and the second B/W input image to produce an image.
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Abstract
Systems and methods for extended color processing on Pelican array cameras in accordance with embodiments of the invention are disclosed. In one embodiment, a method of generating a high resolution image includes obtaining input images, where a first set of images includes information in a first band of visible wavelengths and a second set of images includes information in a second band of visible wavelengths and non-visible wavelengths, determining an initial estimate by combining the first set of images into a first fused image, combining the second set of images into a second fused image, spatially registering the fused images, denoising the fused images using bilateral filters, normalizing the second fused image in the photometric reference space of the first fused image, combining the fused images, determining a high resolution image that when mapped through a forward imaging transformation matches the input images within at least one predetermined criterion.
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Citations
14 Claims
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1. A method of generating an image of a scene using a camera array including at least one camera that captures an RGB image of a scene and at least one camera that captures a black and white (B/W) image of the scene, the method comprising:
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obtaining input images captured by a plurality of cameras that includes a camera that captures an RGB image and a camera that captures a B/W image, where the input images includes a first RGB input image that includes image information captured in at least three channels (RGB) of information and a second B/W input image that includes image information captured in a single black and white (B/W) channel of information; generate a fused image using a processor configured by software to; measure parallax using the input images captured by the plurality of cameras to produce a depth map; normalize the second B/W input image in the photometric reference space of the first RGB input image; cross-channel normalize the first RGB input image with respect to the B/W input image by applying gains and offsets to pixels of the first RGB input image; and perform cross-channel fusion using the first RGB input image and the second B/W input image to produce an image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An array camera configured to generate an image of a scene using an array camera including at least one camera that captures an RGB image of a scene and at least one camera that captures a B/W image of the scene, the array camera comprising:
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an array camera including a plurality of cameras that includes a camera that captures an RGB image and a camera that captures a B/W image; and a processor configured by software to; obtain input images captured by the plurality of cameras that includes a camera that captures an RGB image and a camera that captures a B/W image, where the input images includes a first RGB input image that includes image information captured in at least three channels (RGB) of information and a second B/W input image that includes image information captured in a single black and white (B/W) channel of information; generate a fused image by; measuring parallax using the input images captured by the plurality of cameras to produce a depth map; normalizing the second B/W input image in the photometric reference space of the first RGB input image; cross-channel normalize the first RGB input image with respect to the B/W input image by applying gains and offsets to pixels of the first RGB input image; and perform cross-channel fusion using the first RGB input image the second B/W input image to produce an image. - View Dependent Claims (13, 14)
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Specification