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Title:
DISTANCE IMAGE MEASUREMENT DEVICE AND DISTANCE IMAGE MEASUREMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2019/078366
Kind Code:
A1
Abstract:
Provided is a distance image sensor 10 which is provided with: a light source 11 which generates pulsed light LP; a light source control means 31 which controls the light source 11; a pixel circuit 13 which includes a photoelectric conversion region 21, charge reading regions 221 to 224, a charge ejection region 23, and control electrodes 241 to 244, 25; a charge transfer control means 32 which successively applies a control pulse to the control electrode 241 to 244; and a distance compute means which reads voltages of the charge reading regions 221 to 224 as detection signals S1 to S4, and repeatedly computes a distance on the basis of the detection signals S1 to S4. The charge transfer control means 32, for each of four types of sub-frame periods F1 to F4 in a single frame period, sets the timing of the control pulse so as to shift a delay time of the control pulse with respect to the generation timing of the pulsed light LP to a different time.

Inventors:
KAWAHITO Shoji (5-1 Johoku 3-chome, Naka-ku, Hamamatsu-sh, Shizuoka 61, 〒4328561, JP)
Application Number:
JP2018/039080
Publication Date:
April 25, 2019
Filing Date:
October 19, 2018
Export Citation:
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Assignee:
NATIONAL UNIVERSITY CORPORATION SHIZUOKA UNIVERSITY (836 Ohya, Suruga-ku Shizuoka-sh, Shizuoka 29, 〒4228529, JP)
International Classes:
H04N5/341; G01C3/06; G01S17/89; H04N5/225; H04N5/369
Domestic Patent References:
WO2017141957A12017-08-24
Foreign References:
JP2006064641A2006-03-09
JP2010032425A2010-02-12
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (SOEI PATENT AND LAW FIRM, Marunouchi MY PLAZA 9th fl. 1-1, Marunouchi 2-chome, Chiyoda-k, Tokyo 05, 〒1000005, JP)
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