title: TORNADO: omnistereo video imaging with rotating optics.
abstract: One of the key techniques for vision-based communication is omnidirectional stereo (omnistereo) imaging, in which stereoscopic images for an arbitrary horizontal direction are captured and presented according to the viewing direction of the observer. Although omnistereo models have been surveyed in several studies, few omnistereo sensors have actually been implemented. In this paper, a practical method for capturing omnistereo video sequences using rotating optics is proposed and evaluated. The rotating optics system consists of prism sheets, circular or linear polarizing films, and a hyperboloidal mirror. This system has two different modes of operation with regard to the separation of images for the left and right eyes. In the high-speed shutter mode, images are separated using postimage processing, while, in the low-speed shutter mode, the image separation is completed by optics. By capturing actual images, we confirmed the effectiveness of the methods.
authors.affiliation: Graduate Schoool of Information Science and Technology, The University of Tokyo, 113-8656 Tokyo, Japan. tanaken@computer.org
authors.forename: Kenji
authors.initials: K
authors.lastname: Tanaka
authors.forename: Susumu
authors.initials: S
authors.lastname: Tachi
mesh_terms: D003198:Computer Simulation; D003199:Computer Systems; D003626:Data Display; D004777:Environment; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007090:Image Interpretation, Computer-Assisted / Q000295:instrumentation / Q000379:methods; D021621:Imaging, Three-Dimensional / Q000295:instrumentation* / Q000379:methods; D009862:Online Systems; D055095:Optics and Photonics / Q000295:instrumentation*; D010780:Photogrammetry / Q000295:instrumentation* / Q000379:methods; D014584:User-Computer Interface; D014741:Video Recording / Q000295:instrumentation* / Q000379:methods