Open AccessGain-modulated Axi-Vision Camera (high speed high-accuracy depth-mapping camera)
Author(s) -
Masahiro Kawakita,
Keigo Iizuka,
Rei Iwama,
Kenji Takizawa,
Hiroshi Kikuchi,
Fumio Sato
Publication year - 2004
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.12.005336
Subject(s) - optics , pixel , frame rate , camera auto calibration , image resolution , laser , camera resectioning , computer vision , artificial intelligence , three ccd camera , physics , computer science , video camera , stereo camera , image sensor , resolution (logic)
We describe a novel real-time depth-mapping camera, the Gainmodulated Axi-Vision Camera, where pulsed laser light is combined with a gain-modulated camera. Depth resolution of 2.4 mm was obtained, which is higher than the resolution of the previously reported depth-mapping Axi- Vision Camera. Pixel-by-pixel depth information of 768 x 493 pixels is obtainable at one half of the video frame rate (15 Hz). A short movie clip is attached that illustrates the depth measurement operation. The merits of the Gain-modulated Axi-Vision Camera are high-resolution, real-time operation, and a relatively simple optical system. These merits primarily arise from the ultra-fast exposure time using a pulsed laser diode.