Integrated optical 3D digital imaging based on DSP scheme

Xiaodong Wang; Xiang Peng; Bruce Z. Gao

doi:10.1117/12.755849

28 November 2007 Integrated optical 3D digital imaging based on DSP scheme

Xiaodong Wang, Xiang Peng, Bruce Z. Gao

Proceedings Volume 6833, Electronic Imaging and Multimedia Technology V; 68330B (2007) https://doi.org/10.1117/12.755849
Event: Photonics Asia 2007, 2007, Beijing, China

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.

Citation Download Citation

Xiaodong Wang, Xiang Peng, and Bruce Z. Gao "Integrated optical 3D digital imaging based on DSP scheme", Proc. SPIE 6833, Electronic Imaging and Multimedia Technology V, 68330B (28 November 2007); https://doi.org/10.1117/12.755849

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available