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Proceedings Paper

Integrated optical 3D digital imaging based on DSP scheme
Author(s): Xiaodong Wang; Xiang Peng; Bruce Z. Gao
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Paper Abstract

We present a scheme of integrated optical 3-D digital imaging (IO3DI) based on digital signal processor (DSP), which can acquire range images independently without PC support. This scheme is based on a parallel hardware structure with aid of DSP and field programmable gate array (FPGA) to realize 3-D imaging. In this integrated scheme of 3-D imaging, the phase measurement profilometry is adopted. To realize the pipeline processing of the fringe projection, image acquisition and fringe pattern analysis, we present a multi-threads application program that is developed under the environment of DSP/BIOS RTOS (real-time operating system). Since RTOS provides a preemptive kernel and powerful configuration tool, with which we are able to achieve a real-time scheduling and synchronization. To accelerate automatic fringe analysis and phase unwrapping, we make use of the technique of software optimization. The proposed scheme can reach a performance of 39.5 f/s (frames per second), so it may well fit into real-time fringe-pattern analysis and can implement fast 3-D imaging. Experiment results are also presented to show the validity of proposed scheme.

Paper Details

Date Published: 28 November 2007
PDF: 7 pages
Proc. SPIE 6833, Electronic Imaging and Multimedia Technology V, 68330B (28 November 2007); doi: 10.1117/12.755849
Show Author Affiliations
Xiaodong Wang, Shenzhen Univ. (China)
Tianjin Univ. (China)
Xiang Peng, Shenzhen Univ. (China)
Tianjin Univ. (China)
Bruce Z. Gao, Clemson Univ. (United States)

Published in SPIE Proceedings Vol. 6833:
Electronic Imaging and Multimedia Technology V
Liwei Zhou; Chung-Sheng Li; Minerva M. Yeung, Editor(s)

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