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In this paper, we investigate the distortion features of high-resolution image from wide-angle lens, and propose a piecewise correction method based on the grid template. From the distorted image, the ideal and the distorted coordinates of the grid intersection are extracted to search the optimal distortion center. Subsequently, we piecewise map the ideal and distorted coordinate to obtain the distortion...
Results from a standardization study cosponsored by the International Society for Advancement of Cytometry (ISAC) and the US National Institute of Standards and Technology (NIST) are reported. The study evaluated the variability of assigning intensity values to fluorophore standard beads by bead manufacturers and the variability of cross calibrating the standard beads to stained polymer beads (hard‐dyed...
Precision calibration of industrial sensors and instruments are usually performed manually in the calibration laboratory. In this paper, a computer controlled automated solution with a software prototype controlling the whole calibration process is proposed. This solution minimizes the human involvement and therefore reduces the chances of errors. Data acquiring, processing and calculation are simplified...
The subject investigated in this paper is oil-water two-phase flow, image data capture and calibration method for 8 electrodes electrical capacitance tomography system. Oil/water two-phase flow is discussed, an alternating current circuit measuring small capacitance and a control circuit of data capture and small capacitance measurement calibration method are designed. The advantages of the system...
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