The camera described here makes color TV images that include information about the distance between the camera and the objects in the images. This range information is obtained from two images of the same scene taken under different illumination conditions. The camera does not require scanning, multiple camera units, or complicated computation. Range information for each pixel is acquired fast enough to keep up with the video rate of a TV camera. We describe various operational features and technical specifications such as ranging errors as well as the results of experimental investigations of the dependence on the color and reflectivity of the objects, of the sensitivity to interference from external light, and of the effects of the movement of the objects.
© 2000 Optical Society of America
(100.6890) Image processing : Three-dimensional image processing
(110.6880) Imaging systems : Three-dimensional image acquisition
(120.6650) Instrumentation, measurement, and metrology : Surface measurements, figure
(150.5670) Machine vision : Range finding
(150.6910) Machine vision : Three-dimensional sensing
Masahiro Kawakita, Keigo Iizuka, Tahito Aida, Hiroshi Kikuchi, Hideo Fujikake, Jun Yonai, and Kuniharu Takizawa, "Axi-Vision Camera (Real-Time Distance-Mapping Camera)," Appl. Opt. 39, 3931-3939 (2000)