Acquisition of 3-D image of still or moving objects utilizing laser diode range-finding speedometer

Author

Shinohara, Shigenobu ; Suzuki, Takashi ; Yoshida, Hirofumi ; Ikeda, Hiroaki ; Sumi, Masao

Author_Institution

Shizuoka Univ., Hamamatsu, Japan

fYear

1993

fDate

15-19 Nov 1993

Firstpage

1730

Abstract

Described is acquisition of a 3-D image of some still or moving objects utilizing the laser diode range-finding speedometer. The laser beam is scanned in x and y directions by two plane mirrors. Measurement errors of both the contour and the depth of a still 10 cm×10 cm white paper positioned at 30 cm were 1.2 mm or 0.4%, and its measuring time was 30 seconds to survey 11×11 points. An image of the same square paper moving at 2 mm/s was obtained in 12 seconds surveying 7×7 points with depth error 1.8 mm or 0.6% and contour error 15 mm or 5%. A 3-D image of a standstill or moving white spherical ball is also obtained

Keywords

image processing; laser ranging; laser velocimeters; semiconductor lasers; velocity measurement; 10 cm; 12 s; 2 mm/s; 30 cm; 30 s; 3D image acquisition; laser diode range-finding speedometer; moving objects; stationary objects; still objects; Amplitude modulation; Diode lasers; Laser beams; Measurement errors; Mirrors; Optical modulation; Pulse measurements; Time measurement; Velocity measurement; Wavelength measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, Control, and Instrumentation, 1993. Proceedings of the IECON '93., International Conference on

Conference_Location

Maui, HI

Print_ISBN

0-7803-0891-3

Type

conf

DOI

10.1109/IECON.1993.339335

Filename

339335