Image pickup apparatus
First Claim
1. An image pickup apparatus comprising:
- image pickup means for taking an image from an object containing a periodic pattern and for outputting an image signal;
image processing means for processing the image signal output from said image pickup means; and
magnification setting means for setting an imaging magnification of the object relative to the image device in accordance with a pitch of a periodic pattern contained in the object,wherein said magnification setting means comprises means for setting the image magnification to allow a pixel pitch of said image pickup means to be made an integral multiple of the pitch of the periodic pattern imaged on said image pickup means.
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Accused Products
Abstract
An image pickup system including an image pickup device (4) for taking an image from an object (1) containing a periodic pattern and outputting an image signal (5), a zoom lens (2) for forming an object image on the image pickup device, a moire amount detection circuit (10) for detecting an amount of moire from the image signal (5), and an imaging magnification control circuit including a differentiating circuit (18) provided for setting a magnification of the zoom lens (2) and finely adjusting the magnification of the zoom lens (2) to allow the amount of moire detected by the moire amount detection circuit (10) to become below the setting value, a positive/negative determination circuit (20), a system controller (22), and a ROM (24).
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Citations
20 Claims
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1. An image pickup apparatus comprising:
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image pickup means for taking an image from an object containing a periodic pattern and for outputting an image signal; image processing means for processing the image signal output from said image pickup means; and magnification setting means for setting an imaging magnification of the object relative to the image device in accordance with a pitch of a periodic pattern contained in the object, wherein said magnification setting means comprises means for setting the image magnification to allow a pixel pitch of said image pickup means to be made an integral multiple of the pitch of the periodic pattern imaged on said image pickup means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An image pickup apparatus comprising:
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image pickup means for taking an image from an object containing a periodic pattern and for outputting an image signal; image processing means for processing the image signal output from said image pickup means; means for detecting an amount of moire on the basis of the image signal output from said image pickup means; and magnification setting means for setting an imaging magnification of the object relative to said image pickup means so that the amount of moire detected by the detecting means becomes below a setting amount, wherein said magnification setting means comprises means for setting the image magnification to allow a pixel pitch of said image pickup means to be made an integral multiple of a pitch of the periodic pattern imaged on said image pickup means. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification