A Practical Approach Based on Shape from Shading and Fast Marching for 3D Geometry Recovery under Oblique Illumination

Lapo Governi; Rocco Furferi; Luca Puggelli; Yary Volpe

doi:10.4028/www.scientific.net/AMM.472.503

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 472A Practical Approach Based on Shape from Shading...

A Practical Approach Based on Shape from Shading and Fast Marching for 3D Geometry Recovery under Oblique Illumination

Abstract:

Design of new industrial objects characterized by high stylistic content often starts from sketches or images of the product to be, subsequently, represented in a 3D digital form by using CAD software. To speed up this phase, a number of methods for automatic or semi-automatic translation of sketches or images into a 3D model have been devised all over the world also for reverse engineering purposes. When the image shading is a crucial information for recovering the final 3D shape, Fast Marching is recognized to be among the best method to date, especially for frontally illuminated scenes. Unfortunately, such a method cannot be directly applied when object illumination in the considered image is oblique. The present work is aimed to propose a simple, but effective, approach for recovering 3D shape of objects starting from single side illuminated scenes i.e. for solving non-eikonal SFS problems. Tested against a set of case studies, the method proved its effectiveness.

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Periodical:

Applied Mechanics and Materials (Volume 472)

Pages:

503-509

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.472.503

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Online since:

January 2014

Authors:

Lapo Governi, Rocco Furferi, Luca Puggelli, Yary Volpe

Keywords:

Digital Design, Fast Marching, Intelligent Manufacturing, Oblique Illumination, Shape from Shading

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