IMAGE MEASURING APPARATUS
PROBLEM TO BE SOLVED: To provide an image measurement machine capable of detecting a suitable focus position by executing autofocus processing. SOLUTION: The image measurement machine 1 includes: a strobe illuminating device 21; a camera 22; a movement mechanism 23 and a control device 3. The contro...
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| creator | SAEKI TAKESHI KANAMORI HIROYUKI SONOBE HIRATO |
| description | PROBLEM TO BE SOLVED: To provide an image measurement machine capable of detecting a suitable focus position by executing autofocus processing. SOLUTION: The image measurement machine 1 includes: a strobe illuminating device 21; a camera 22; a movement mechanism 23 and a control device 3. The control device 3 includes a focus position detection means 4 for detecting the focus position of the camera 22, by controlling the movement mechanism 23 to move a position of the camera 22 along an optical axis direction of the camera 22 at prescribed speed, and imaging an object to be measured with the camera 22 at a plurality of positions. The focus position detection means 4 includes: an illumination control means 41 for controlling the brightness of illumination, by controlling the lighting time of the strobe illumination device 21; a relative position obtaining part 42 for obtaining the position of the camera 22 at the center time of the lighting time; and a contrast detection part 43 for detecting the contrasts of the images imaged picked up by the camera 22. COPYRIGHT: (C)2011,JPO&INPIT |
| format | Patent |
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SOLUTION: The image measurement machine 1 includes: a strobe illuminating device 21; a camera 22; a movement mechanism 23 and a control device 3. The control device 3 includes a focus position detection means 4 for detecting the focus position of the camera 22, by controlling the movement mechanism 23 to move a position of the camera 22 along an optical axis direction of the camera 22 at prescribed speed, and imaging an object to be measured with the camera 22 at a plurality of positions. The focus position detection means 4 includes: an illumination control means 41 for controlling the brightness of illumination, by controlling the lighting time of the strobe illumination device 21; a relative position obtaining part 42 for obtaining the position of the camera 22 at the center time of the lighting time; and a contrast detection part 43 for detecting the contrasts of the images imaged picked up by the camera 22. 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SOLUTION: The image measurement machine 1 includes: a strobe illuminating device 21; a camera 22; a movement mechanism 23 and a control device 3. The control device 3 includes a focus position detection means 4 for detecting the focus position of the camera 22, by controlling the movement mechanism 23 to move a position of the camera 22 along an optical axis direction of the camera 22 at prescribed speed, and imaging an object to be measured with the camera 22 at a plurality of positions. The focus position detection means 4 includes: an illumination control means 41 for controlling the brightness of illumination, by controlling the lighting time of the strobe illumination device 21; a relative position obtaining part 42 for obtaining the position of the camera 22 at the center time of the lighting time; and a contrast detection part 43 for detecting the contrasts of the images imaged picked up by the camera 22. COPYRIGHT: (C)2011,JPO&INPIT</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHOTOGRAPHY PHYSICS |
| title | IMAGE MEASURING APPARATUS |
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