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Adaptive Color Calibration Based One-Shot Structured Light System
School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, Jiangsu, China
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Received: 15 June 2012; in revised form: 23 July 2012 / Accepted: 23 July 2012 / Published: 8 August 2012
Abstract: In one-shot color structured light systems, the color of stripe patterns are typically distorted with respect to color crosstalk, ambient light and the albedo of the scanned objects, leading to mismatch in the correspondence of color stripes between the projected and captured images. In this paper, an adaptive color calibration and Discrete Trend Transform algorithm are presented to achieve high-resolution 3D reconstructions. The adaptive color calibration, according to the relative albedo in RGB channels, can improve the accuracy of labeling stripe by alleviating the effect of albedo and ambient light while decoding the color. Furthermore, the Discrete Trend Transform in the M channel makes the color calibration an effective method for detecting weak stripes due to the uneven surfaces or reflectance characteristics of the scanned objects. With this approach, the presented system is suitable for scanning moving objects and generating high-resolution 3D reconstructions without the need of dark laboratory environments.
Keywords: 3D image acquisition; adaptive color calibration; discrete trend transform; structured light
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Cite This Article
MDPI and ACS Style
Zhou, Y.; Zhao, D.; Yu, Y.; Yuan, J.; Du, S. Adaptive Color Calibration Based One-Shot Structured Light System. Sensors 2012, 12, 10947-10963.
Zhou Y, Zhao D, Yu Y, Yuan J, Du S. Adaptive Color Calibration Based One-Shot Structured Light System. Sensors. 2012; 12(8):10947-10963.
Zhou, Yu; Zhao, Dongwei; Yu, Yao; Yuan, Jie; Du, Sidan. 2012. "Adaptive Color Calibration Based One-Shot Structured Light System." Sensors 12, no. 8: 10947-10963.