Title:
RANGING DEVICE, RANGING METHOD, AND RANGING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/255770
Kind Code:
A1
Abstract:
The present technology relates to a ranging device, a ranging method, and a ranging system that enable highly accurate distance measurement. A ranging device (23) comprises: a measurement section (172) for measuring the number of response times a light receiving element has responded to incidence of photons on a pixel (81); a weight determination section (173) for determining a weight on the basis of the number of response times; a TDC (151) for counting the time between emission of a light source (32) and an incident timing at which a photon is incident on the pixel (81); a weight processing section (174) for subjecting a count value supplied from the TDC to processing corresponding to a weight; and a histogram generation section (132) for generating a histogram on the basis of the count value subjected to the processing corresponding to the weight. The present technology is applicable to, for example, a ranging system and the like for detecting a distance to an imaging subject in a depth direction.
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Inventors:
TSUKUDA YASUNORI (JP)
Application Number:
PCT/JP2020/022486
Publication Date:
December 24, 2020
Filing Date:
June 08, 2020
Export Citation:
Assignee:
SONY SEMICONDUCTOR SOLUTIONS CORP (JP)
International Classes:
G01S7/4861; G01C3/06; G01S17/10; G01S17/894
Foreign References:
| JP2016161438A | 2016-09-05 | |||
| JP2018091760A | 2018-06-14 | |||
| JP2010091378A | 2010-04-22 | |||
| US20180259645A1 | 2018-09-13 | |||
| US20180246212A1 | 2018-08-30 |
Attorney, Agent or Firm:
NISHIKAWA Takashi et al. (JP)
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