Development of video-rate range finder by processing RGB signals from binocular cameras

Yutaka Tanaka, Akio Gofuku, Jun Goto

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


In this study a color 3-D range finder operating at the video rate has been developed for the purposes of industrial and welfare application. The range finder with simplified circuits discriminated eight colors through classifying the R, G, B signals from binocular cameras into high and low brightness levels. The corresponding color boundaries were determined by comparing binarized brightness levels, thereby enabling the derivation of an accurate parallax signal. This finder was applied to three-dimensional measurements of distances and dimensions. The influence of color combinations on the distance acquisition rate was examined. The results showed that the finder is useful as a practical device.

Original languageEnglish
Pages (from-to)652-657
Number of pages6
JournalNippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
Issue number594
Publication statusPublished - 1996
Externally publishedYes

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering


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