Shape from equal thickness contours

Conference · Sun May 10 04:00:00 EDT 1998

OSTI ID:779705

Cong, G ^[1]; Parvin, B

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1. LBNL Library

A unique imaging modality based on Equal Thickness Contours (ETC) has introduced a new opportunity for 3D shape reconstruction from multiple views. We present a computational framework for representing each view of an object in terms of its object thickness, and then integrating these representations into a 3D surface by algebraic reconstruction. The object thickness is inferred by grouping curve segments that correspond to points of second derivative maxima. At each step of the process, we use some form of regularization to ensure closeness to the original features, as well as neighborhood continuity. We apply our approach to images of a sub-micron crystal structure obtained through a holographic process.

• Research Organization: Lawrence Berkeley National Lab., CA (US)
• Sponsoring Organization: USDOE Director, Office of Energy Research (US)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 779705
• Report Number(s): LBNL--41678
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COMPUTERS
CRYSTAL STRUCTURE
PATTERN RECOGNITION
SHAPE
THICKNESS