Accession Number : ADA183754

Title :   Shape from Projecting a Stripe Pattern.

Descriptive Note : Technical rept.,

Corporate Author : MARYLAND UNIV COLLEGE PARK CENTER FOR AUTOMATION RESEARCH

Personal Author(s) : Asada,Minoru ; Tsuji,Saburo

PDF Url : ADA183754

Report Date : Jan 1987

Pagination or Media Count : 34

Abstract : This paper presents a simple method which determines the shape of an object by projecting a stripe pattern on to it. Assuming orthographical projection as a camera model and parallel light projection of the stripe pattern, the method obtains a 2(1/2)D representation of objects by estimating surface normals from the slopes and intervals of the stripes in the image. The 2(1/2)D image is further divided into planar or singly curved surfaces by examining the distribution of the surface normals in gradient space. Some applications and evaluation of the error in surface orientation are described.

Descriptors :   *STEREOSCOPIC PROJECTORS, *IMAGE PROCESSING, *IMAGE PROJECTORS, CAMERAS, CURVATURE, DISTRIBUTION, IMAGES, INTERVALS, LIGHT, MODELS, PARALLEL ORIENTATION, PATTERNS, SURFACES

Subject Categories : Printing and Graphic Arts

Distribution Statement : APPROVED FOR PUBLIC RELEASE