Title:
SPEED MEASURING DEVICE
Document Type and Number:
WIPO Patent Application WO/2010/092728
Kind Code:
A1
Abstract:
The speed of an object is measured at low cost. A speed measuring device is provided with a TV camera (11) for capturing an image of a blood cell, a strobe (12) for applying light into an image capturing range of the TV camera (11) for a period of time shorter than the exposure time of one frame of the TV camera (11) in each frame, a timing controlling unit (14) for controlling light emission of the strobe (12) in such a manner that the time interval between light emission timings between two consecutive frames is shorter than the exposure time of one frame and that the light emission state occurs once in each frame, and a calculation processing unit (151) for finding the travel distance of the blood cell from two images obtained in the two frames and calculating the speed of the blood cell from the travel distance and the time interval between light emission timings between the two frames.
Inventors:
ICHITANI SHUJI (JP)
HUNG PO-CHIEH (JP)
HUNG PO-CHIEH (JP)
Application Number:
PCT/JP2009/070745
Publication Date:
August 19, 2010
Filing Date:
December 11, 2009
Export Citation:
Assignee:
KONICA MINOLTA OPTO INC (JP)
ICHITANI SHUJI (JP)
HUNG PO-CHIEH (JP)
ICHITANI SHUJI (JP)
HUNG PO-CHIEH (JP)
International Classes:
G01P5/20; G01N15/00; G01P13/00
Foreign References:
| JP2006300824A | 2006-11-02 | |||
| JPH04361162A | 1992-12-14 | |||
| JPS63298065A | 1988-12-05 |
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