Vision Processing for Realtime 3-D Data Acquisition Based on Coded Structured Light

Structured light vision systems have been successfully used for accurate measurement of 3D surfaces in computer vision. However, their applications are mainly limited to scanning stationary objects so far since tens of images have to be captured for recovering one 3D scene. This paper presents an id...

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Vydané v:IEEE transactions on image processing Ročník 17; číslo 2; s. 167 - 176
Hlavní autori: Chen, S. Y., Li, Y. F., Zhang, Jianwei
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: New York, NY IEEE 01.02.2008
Institute of Electrical and Electronics Engineers
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Predmet:
3-D data acquisition
Algorithms
Application software
Applied sciences
Artificial Intelligence
Color
Color-encoded
Colorimetry - methods
Computer science; control theory; systems
Computer Systems
Computer vision
Data acquisition
Exact sciences and technology
Eyes & eyesight
Image color analysis
Image Enhancement - methods
Image Interpretation, Computer-Assisted - methods
Image processing
Image reconstruction
Imaging, Three-Dimensional - methods
Information, signal and communications theory
Layout
Lighting - methods
Machine vision
Pattern Recognition, Automated - methods
Pattern recognition. Digital image processing. Computational geometry
perception
Performance analysis
Real time systems
real-time measurement
Reproducibility of Results
robotics
Sensitivity and Specificity
Signal and communications theory
Signal processing
Signal representation. Spectral analysis
Signal, noise
structured-light
Surface reconstruction
Telecommunications and information theory
unique code
vision sensor
Vision systems
Performance evaluation
Color-encoded
vision sensor
Computer vision
real- time measurement
Data acquisition
Artificial vision
Vision system
Robotics
perception
Image analysis
unique code
structured-light
Scene analysis
3-D data acquisition
Image sensor
Indexing
ISSN:1057-7149, 1941-0042
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Popis
Shrnutí:Structured light vision systems have been successfully used for accurate measurement of 3D surfaces in computer vision. However, their applications are mainly limited to scanning stationary objects so far since tens of images have to be captured for recovering one 3D scene. This paper presents an idea for real-time acquisition of 3D surface data by a specially coded vision system. To achieve 3D measurement for a dynamic scene, the data acquisition must be performed with only a single image. A principle of uniquely color-encoded pattern projection is proposed to design a color matrix for improving the reconstruction efficiency. The matrix is produced by a special code sequence and a number of state transitions. A color projector is controlled by a computer to generate the desired color patterns in the scene. The unique indexing of the light codes is crucial here for color projection since it is essential that each light grid be uniquely identified by incorporating local neighborhoods so that 3D reconstruction can be performed with only local analysis of a single image. A scheme is presented to describe such a vision processing method for fast 3D data acquisition. Practical experimental performance is provided to analyze the efficiency of the proposed methods.
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ISSN:1057-7149
1941-0042
DOI:10.1109/TIP.2007.914755