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Recovery of three-dimensional shapes by using defocused structured light

✍ Scribed by Carlos Hinojosa; Alfonso Serrano-Heredia; Juan G. Ibarra

Book ID
104160317
Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
863 KB
Volume
30
Category
Article
ISSN
0030-3992

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✦ Synopsis

We present a new concept for three-dimensional shape recovery using defocused structured light (DSL) images. The DSL technique externally extracts the depth information from the scene by using projections of cylindrical wavefronts on the object. These projections show dierent degrees of defocus as a function of the depth. Ecient algorithms for shape recovery are developed taking advantage of the spatial regularity of the projected light and the pro®le of each fringe. In this way a depth map of the scene is obtained using only one image. Experimental results are shown and we discuss the possibility of a real time implementation.

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