CCD-based range-finding sensor

Author

Miyagawa, Ryohei ; Kanade, Takeo

Author_Institution

Robotics Inst., Carnegie Mellon Univ., Pittsburgh, PA, USA

Volume

44

Issue

10

fYear

1997

fDate

10/1/1997 12:00:00 AM

Firstpage

1648

Lastpage

1652

Abstract

Integration-time-based, time-domain computation provides an area-efficient way to process image information by directly handling photo-created charge during photo-sensing. We have fabricated and tested a CCD-based range-finding sensor which uses the time-of-flight method for range measurement. The sensor exploits two charge packets for light integration and detects the delay of the received light pulse relative to the transmitted light pulse. It has detected a 10 cm distance difference at the range of 150 cm in the dark background

Keywords

CCD image sensors; VLSI; distance measurement; time-domain analysis; 150 cm; area-efficient method; charge packets; dark background; integration-time-based computation; light integration; photo-created charge; photo-sensing; range measurement; range-finding sensor; received light pulse; time-domain computation; time-of-flight method; transmitted light pulse; Charge coupled devices; Delay effects; Delay estimation; Image sensors; Motion detection; Phase detection; Pulse measurements; Pulse modulation; Testing; Time domain analysis;

fLanguage

English

Journal_Title

Electron Devices, IEEE Transactions on

Publisher

ieee

ISSN

0018-9383

Type

jour

DOI

10.1109/16.628817

Filename

628817