Methods and systems for generating color images
First Claim
Patent Images
1. A system for generating a focused color image of an object, the system comprising:
- a light source that produces light comprising a first wavelength and light comprising a second wavelength different from the first wavelength;
an optics system optically coupled to the light source and operable to;
focus the first wavelength to a first wavelength focal length and scan the first wavelength focal length through a plurality of different first wavelength focal lengths; and
focus the second wavelength to a second wavelength focal length and scan the second wavelength focal length through a plurality of different second wavelength focal lengths;
a detector configured to collect first wavelength image data corresponding to the first wavelength of light reflected from the object for the plurality of first wavelength focal lengths and second wavelength image data corresponding to the second wavelength of light reflected from the object for the plurality of second wavelength focal lengths; and
a processor configured to, for each of a plurality of different locations in the focused color image;
select one of the first wavelength focal lengths for which the first wavelength is focused relative to the object at the respective location;
select one of the second wavelength focal lengths for which the second wavelength is focused relative to the object at the respective location; and
combine the first wavelength image data corresponding to the selected first wavelength focal length for the respective location and the second wavelength image data corresponding to the selected second wavelength focal length for the respective location, thereby generating focused color image data for the respective image location for the focused color image of the object.
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Abstract
Systems for generating in-focus color images are provided. Related methods and devices are also provided.
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Citations
33 Claims
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1. A system for generating a focused color image of an object, the system comprising:
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a light source that produces light comprising a first wavelength and light comprising a second wavelength different from the first wavelength; an optics system optically coupled to the light source and operable to; focus the first wavelength to a first wavelength focal length and scan the first wavelength focal length through a plurality of different first wavelength focal lengths; and focus the second wavelength to a second wavelength focal length and scan the second wavelength focal length through a plurality of different second wavelength focal lengths; a detector configured to collect first wavelength image data corresponding to the first wavelength of light reflected from the object for the plurality of first wavelength focal lengths and second wavelength image data corresponding to the second wavelength of light reflected from the object for the plurality of second wavelength focal lengths; and a processor configured to, for each of a plurality of different locations in the focused color image; select one of the first wavelength focal lengths for which the first wavelength is focused relative to the object at the respective location; select one of the second wavelength focal lengths for which the second wavelength is focused relative to the object at the respective location; and combine the first wavelength image data corresponding to the selected first wavelength focal length for the respective location and the second wavelength image data corresponding to the selected second wavelength focal length for the respective location, thereby generating focused color image data for the respective image location for the focused color image of the object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A computer-implemented method for generating a focused color image of an object, the method comprising:
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processing image signals corresponding to a first wavelength of light of a plurality of different focal lengths that is reflected from the object so as to generate first wavelength image data; processing image signals corresponding to a second wavelength of light of a plurality of different focal lengths that is reflected from the object so as to generate second wavelength image data, the second wavelength being different from the first wavelength; and for each of a plurality of different locations in the focused color image; selecting one of the first wavelength focal lengths for which the first wavelength is focused relative to the object at the respective location; selecting one of the second wavelength focal lengths for which the second wavelength is focused relative to the object at the respective location; and combining the first wavelength image data corresponding to the selected first wavelength focal length for the respective location and the second wavelength image data corresponding to the selected second wavelength focal length for the respective location, thereby generating focused color image data for the respective image location for the focused color image of the object. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A system for generating a focused color image of an object in low-light conditions, the system comprising:
- a color detector comprising a two-dimensional pixel array that includes;
(a) a plurality of red pixels distributed within the pixel array, (b) a plurality of green pixels distributed within the pixel array, and (c) a plurality of blue pixels distributed within the pixel array;
wherein each of the red pixels is configured to detect a red wavelength of light reflected from the object, each of the green pixels is configured to detect a green wavelength of light reflected from the object, and each of the blue pixels is configured to detect a blue wavelength of light reflected from the object, and wherein the number of red pixels is greater than the number of green pixels, and the number of red pixels is greater than the number of blue pixels;and a processor configured to process signals received from the red pixels, the green pixels, and the blue pixels to;
generate red wavelength image data corresponding to the red wavelength of light reflected from the object for a plurality of red wavelength focal lengths;generate green wavelength image data corresponding to the green wavelength of light reflected from the object for a plurality of green wavelength focal lengths; generate blue wavelength image data corresponding to the blue wavelength of light reflected from the object for a plurality of blue wavelength focal lengths; for each of a plurality of different locations in the focused color image;
select one of the red wavelength focal lengths for which the red wavelength is relative to the object at the respective location, wherein the selected red wavelength focal lengths for the plurality of different locations in the focused color image comprise at least two different focal lengths;select one of the green wavelength focal lengths for which the green wavelength is focused relative to the object at the respective location, wherein the selected green wavelength focal lengths for the plurality of different locations in the focused color image comprise at least two different focal lengths; select one of the blue wavelength focal lengths for which the blue wavelength is focused relative to the object at the respective location, wherein the selected blue wavelength focal lengths for the plurality of different locations in the focused color image comprise at least two different focal lengths; and combining the red wavelength image data corresponding to the selected red wavelength focal length for the respective location, the green wavelength image data corresponding to the selected green wavelength focal length for the respective location, and the blue wavelength data corresponding to the selected blue wavelength focal length for the respective location, thereby generating the focused color image data for the respective image location for the focused color image of the object. - View Dependent Claims (29, 30, 31, 32, 33)
- a color detector comprising a two-dimensional pixel array that includes;
Specification