Low cost 3D shape acquisition system using strip shifting pattern

Authors:
Li Yao;Lizhuang Ma;Di Wu
Affiliations:
Digital Media Lab, Shanghai Jiao Tong University, China;Digital Media Lab, Shanghai Jiao Tong University, China;Digital Media Lab, Shanghai Jiao Tong University, China
Venue:
ICDHM'07 Proceedings of the 1st international conference on Digital human modeling
Year:
2007

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Real-time 3D model acquisition

Proceedings of the 29th annual conference on Computer graphics and interactive techniques

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Abstract

We present a simple and low cost 3D shape acquisition method that can measure the objects with interreflection and high light. The capture system employs a projector to project line shifting shadow on the object, and a digital camera to record videos (image sequence) of the object and the distorted shadow. A novel spacetime edge finding method is introduced to get the shadow edge accurately and overcome the interreflection and high light. The 3D data of the object are got by using the spacetime information. A postprocessing 3D filter is proposed to filter the bad data. The 3D filter makes full use of the neighborhoods' geometric constrains and the view point constrain.