Axi-Vision Camera (real-time distance-mapping camera)

Masahiro Kawakita, Keigo Iizuka, Tahito Aida, Hiroshi Kikuchi, Hideo Fujikake, Jun Yonai, Kuniharu Takizawa

Research output: Contribution to journalArticlepeer-review

54 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)3931-3939
Number of pages9
JournalApplied Optics
Issue number22
Publication statusPublished - 2000 Aug 1


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