Accurate identification of saturated pixels for high dynamic range measurement

Yunfei Long; Shuaijun Wang; Wei Wu; Kai Liu

doi:10.1117/1.OE.54.4.043106

20 April 2015 Accurate identification of saturated pixels for high dynamic range measurement

Yunfei Long; Shuaijun Wang; Wei Wu; Kai Liu

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Optical Engineering, 54(4), 043106 (2015). https://doi.org/10.1117/1.OE.54.4.043106

Abstract

Measuring surfaces with high reflectivity variation via structured light illumination requires accurately identifying saturated pixels in captured images. However, conventional methods simply determine saturation by intensities, which is susceptible to a camera blurring effect and random noise. To solve this problem, we present a method that uses the magnitude of a nonprincipal frequency component to identify saturated pixels. Experimental results demonstrate that 1) higher accuracy of three-dimensional reconstruction can be achieved and 2) high-contrast surfaces can be accurately reconstructed.

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Yunfei Long, Shuaijun Wang, Wei Wu, Kai Liu, "Accurate identification of saturated pixels for high dynamic range measurement," Optical Engineering 54(4), 043106 (20 April 2015). https://doi.org/10.1117/1.OE.54.4.043106 . Submission:

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