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One-shot Entire Shape Acquisition Method Using Multiple Projectors and Cameras

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6 Author(s)
Furukawa, R. ; Fac. of Inf. Sci., Hiroshima City Univ., Hiroshima, Japan ; Sagawa, R. ; Kawasaki, H. ; Sakashita, K.
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In this paper, we propose an active scanning system using multiple projectors and cameras to acquire a dense entire shape of the object with a single scan (a.k.a. ones hot scan). One of the potential application of the system is to capture a moving object with high frame-rate. Since the pattern used for ones hot scan is usually complicated and those patterns interfere each other if they are projected on the same object, it is difficult to use multiple sets of them for entire shape acquisition. In addition, at the end of the closed loop, errors on each scan are accumulated, resulting in large gaps between shapes. To solve the problem, we propose a ones hot shape reconstruction method using a projector projecting a static pattern of parallel lines with one or two colors. Since each projector projects just parallel lines with a small number of colors, those patterns are easily decomposed and detected even if those patterns are projected multiple times on the same object. We also propose a kind of multi-view reconstruction algorithm for the proposed projector-camera system. In the experiment, we actually built a system which consists of six projectors and six cameras and dense shapes of entire objects were successfully reconstructed.

Published in:

Image and Video Technology (PSIVT), 2010 Fourth Pacific-Rim Symposium on

Date of Conference:

14-17 Nov. 2010