Microscope control device and optical distortion correction method
First Claim
Patent Images
1. A camera control device comprising:
- an imaging processing unit configured to output phase contrast images recorded by a camera, the phase contrast images being derived from an image of a same perspective of a sample;
an offset processing unit configured to correct phase contrast information regarding a phase contrast between the corresponding phase contrast images by;
determining a phase contrast between the phase contrast images,selecting an offset pattern of a plurality of offset patterns, each offset pattern corresponding to a defocus amount, anddetermining a phase contrast difference as a difference between i) a phase contrast of the selected offset pattern and ii) the phase contrast of the phase contrast images;
a defocus amount calculation unit configured to calculate a defocus amount of the sample based on the phase contrast difference determined by the offset processing unit;
a pattern selection unit configured to;
determine whether the calculated defocus amount fits with the selected offset pattern, andresponsive to the calculated defocus amount not fitting with the selected offset pattern, select another different offset pattern closer to the calculated defocus amount and cause the offset processing unit to correct the phase contrast information using the other offset pattern; and
a distortion correction unit configured to output the calculated defocus amount to a driving control unit responsive to the pattern selection unit determining the calculated defocus amount fits with the selected offset pattern,wherein the offset processing unit is configured to determine the phase contrast information based on a parallax between the corresponding phase contrast images derived from the image of the same perspective.
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Abstract
A microscope control device includes an offset processing unit that corrects phase contrast information regarding a phase contrast between corresponding phase contrast images, which is generated based on a set of the phase contrast images of a sample which are captured by a microscope, based on offset information of phase contrasts caused by optical distortions unique to the microscope, and a defocus amount calculation unit that calculates a defocus amount of the sample on the basis of the phase contrast information after offset correction.
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Citations
16 Claims
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1. A camera control device comprising:
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an imaging processing unit configured to output phase contrast images recorded by a camera, the phase contrast images being derived from an image of a same perspective of a sample; an offset processing unit configured to correct phase contrast information regarding a phase contrast between the corresponding phase contrast images by; determining a phase contrast between the phase contrast images, selecting an offset pattern of a plurality of offset patterns, each offset pattern corresponding to a defocus amount, and determining a phase contrast difference as a difference between i) a phase contrast of the selected offset pattern and ii) the phase contrast of the phase contrast images; a defocus amount calculation unit configured to calculate a defocus amount of the sample based on the phase contrast difference determined by the offset processing unit; a pattern selection unit configured to; determine whether the calculated defocus amount fits with the selected offset pattern, and responsive to the calculated defocus amount not fitting with the selected offset pattern, select another different offset pattern closer to the calculated defocus amount and cause the offset processing unit to correct the phase contrast information using the other offset pattern; and a distortion correction unit configured to output the calculated defocus amount to a driving control unit responsive to the pattern selection unit determining the calculated defocus amount fits with the selected offset pattern, wherein the offset processing unit is configured to determine the phase contrast information based on a parallax between the corresponding phase contrast images derived from the image of the same perspective. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An optical distortion correction method comprising:
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outputting phase contrast images recorded by a camera, the phase contrast images being derived from an image of a same perspective of a sample; correcting phase contrast information regarding a phase contrast between the corresponding phase contrast images by; determining a phase contrast between the phase contrast images, selecting an offset pattern of a plurality of offset patterns, each offset pattern corresponding to a defocus amount, and determining a phase contrast difference as a difference between i) a phase contrast of the selected offset pattern and ii) the phase contrast of the phase contrast images; and calculating a defocus amount of the sample based on the phase contrast information difference; determining whether the calculated defocus amount fits with the selected offset pattern; responsive to the calculated defocus amount not fitting with the selected offset pattern, selecting another different offset pattern closer to the calculated defocus amount and cause the offset processing unit to correct the phase contrast information using the other offset pattern; and outputting the calculated defocus amount to a driving control unit responsive to determining the calculated defocus amount fits with the selected offset pattern, wherein the phase contrast information is determined based on a parallax between the corresponding phase contrast images derived from the same perspective.
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11. A camera controlling apparatus comprising:
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a processor; and a memory device configured to store instructions, which when executed by the processor, cause the processor to; output phase contrast images recorded by a camera, the phase contrast images being derived from an image of a same perspective of a sample, correct phase contrast information regarding a phase contrast between the corresponding phase contrast images by; determining a phase contrast between the phase contrast images, selecting an offset pattern of a plurality of offset patterns, each offset pattern corresponding to a defocus amount, and determining a phase contrast difference as a difference between i) a phase contrast of the selected offset pattern and ii) the phase contrast of the phase contrast images; calculate a defocus amount of the sample based on the phase contrast difference; determine whether the calculated defocus amount fits with the selected offset pattern; responsive to the calculated defocus amount not fitting with the selected offset pattern, select another different offset pattern closer to the calculated defocus amount and correct the phase contrast information using the other offset pattern; and output the calculated defocus amount to a driving control unit responsive to determining the calculated defocus amount fits with the selected offset pattern, wherein the phase contrast information is determined based on a parallax between the corresponding phase contrast images derived from the image of the same perspective. - View Dependent Claims (12)
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13. A microscope system comprising:
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a first camera configured to record an enlarged image of a sample; a second camera configured to record phase contrast images corresponding to the enlarged image, the phase contrast images being derived from an image of a same perspective of the sample; and a camera control device comprising; a processor; and a memory device configured to store instructions, which when executed by the processor, cause the processor to; correct phase contrast information regarding a phase contrast between the corresponding phase contrast images by; determining a phase contrast between the phase contrast images, selecting an offset pattern of a plurality of offset patterns, each offset pattern corresponding to a defocus amount, and determining a phase contrast difference as a difference between i) a phase contrast of the selected offset pattern and ii) the phase contrast of the phase contrast images; calculate a defocus amount of the sample based on the phase contrast difference; determine whether the calculated defocus amount fits with the selected offset pattern; responsive to the calculated defocus amount not fitting with the selected offset pattern, select another different offset pattern closer to the calculated defocus amount and correct the phase contrast information using the other offset pattern; and output the calculated defocus amount to a driving control unit responsive to determining the calculated defocus amount fits with the selected offset pattern, wherein the phase contrast information is determined based on a parallax between the corresponding phase contrast images derived from the image of the same perspective. - View Dependent Claims (14, 15, 16)
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Specification