Monocular stereo measurement using four-pinhole viewpoint switching iris

Abstract

This paper describes a monocular stereo system that can switch its viewpoint hundreds of times of more in a second using a four-pinhole viewpoint switching iris mechanism. Our system can measure the three-dimensional information of a moving object correctly using two different viewpoint images, which are selected from the four switched viewpoint images in a short interval using a four-pinhole viewpoint switching iris mechanism, corresponding to the moving direction of the object. Using a prototype of monocular stereo system that consists of the four-pinhole viewpoint switching iris mechanism and an offline high-speed video camera, we verified its effectiveness in monocular stereo measurement by performing several experiments of moving objects.

Keywords

• viewpoint switching iris
• monocular stereo
• 3-d image acquisition
• high-frame-rate video analysis