Work

3D photography using shadows

Year: 1998

Type: conference-paper

Abstract: A simple and inexpensive approach for extracting the three-dimensional shape of objects is presented. It is based on 'weak structured lighting;' it differs from previous structured lighting approaches in that it requires little hardware besides the camera: a light source (a desk-lamp or the sun), a stick and a checkerboard. The object, illuminated by the light source, is placed on a stage composed of a ground plane and a back plane; the camera faces the object. The user moves the stick in front of the light source, casting a moving shadow on the scene. The 3D shape of the object is extracted from the spatial and temporal location of the observed shadow. Experimental results are presented on three different scenes (indoor with a desk lamp and outdoor with the sun) demonstrating that the error in reconstructing the surface is less than 0.5% of the size of the object.

Source: IEEE International Symposium on Circuits and Systems proceedings

DOI: 10.1109/iscas.1998.694540

Authors: J.-Y. Bouguet, P. Perona

Institutions: California Institute of Technology, University of Padua

Language: English

Topic: Optical measurement and interference techniques

Subfield: Computer Vision and Pattern Recognition

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, California Institute of Technology

OpenAlex ID: W1559203438

FWCI: 0.585

Cites: 4

Cited by: 3

Related to: 10