Gamma Calibration and Phase Error Compensation for Phase Shifting Profilometry
نویسندگان
چکیده
منابع مشابه
Gamma Calibration and Phase Error Compensation for Phase Shifting Profilometry
Phase Shifting Profilometry is a method of structured light whose three-dimensional reconstructions are susceptible to error from Gamma distortion. In practice, the luminance nonlinearity caused by the Gamma distortion effect of a digital video projector and a digital camera yields undesired fringe intensity changes, which substantially reduce the measurement accuracy, and while the effects of ...
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Triangular patterns phase shifting profilometry is a method of structured light whose three-dimensional reconstructions are susceptible to error from gamma distortion. In practice, the luminance nonlinearity caused by the gamma distortion effect of a digital projector and a digital camera yields undesired fringe intensity changes, which substantially reduce the measurement accuracy, and while t...
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In a typical phase-shifting profilometry system for the three-dimensional (3D) shape measurement, shadows often exist in the captured images as the camera and projector probe the object from different directions. The shadow areas do not reflect the fringe patterns which will cause errors in the measurement results. This paper proposed a new method to remove the shadow areas from taking part in ...
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We propose a hybrid computational framework to reduce motion-induced measurement error by combining the Fourier transform profilometry (FTP) and phase-shifting profilometry (PSP). The proposed method is composed of three major steps: Step 1 is to extract continuous relative phase maps for each isolated object with single-shot FTP method and spatial phase unwrapping; Step 2 is to obtain an absol...
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Phase-Shift Profilometry (PSP) provides a means for dense high-quality surface scanning. However it imposes a staticity constraint: The scene is required to remain still during the acquisition of multiple images. PSP is also not applicable to dynamic scenes. On the other hand, there exist active stereo techniques which overcome these constraints but impose other limitations, for instance on the...
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ژورنال
عنوان ژورنال: International Journal of Multimedia and Ubiquitous Engineering
سال: 2014
ISSN: 1975-0080,1975-0080
DOI: 10.14257/ijmue.2014.9.9.32