In order to solve the problem of contact high temperature strain precision measure-ment, this paper established an automatic calibration device for gauges. The furnace was automatically con-trolled by control device. electric cylinder driven servo motor apply load beam. output signal gauge, thermocouple and displacement grat-ing ruler were collected at same time. deformation measurement results...

This paper proposes a method for fully automatic calibration of traffic surveillance cameras. Our method allows for calibration of the camera – including scale – without any user input, only from several minutes of input surveillance video. The targeted applications include speed measurement, measurement of vehicle dimensions, vehicle classification, etc. The first step of our approach is camer...

Locating the calibration markers of a chessboard is a prerequisite step to camera calibration. The efficiency and accuracy of this step has a crucial influence to the final results. This paper presents an automatic method for detection and location the internal corners of black and white squares by using Multi-Radon Transform (MRT) and image segmentation methods. The whole procedure mainly incl...

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Optical projection tomography (OPT) is a powerful tool for biomedical studies. It achieves 3D visualization of mesoscopic biological samples with high spatial resolution using conventional tomographic-reconstruction algorithms. However, various artifacts degrade the quality reconstructed images due to experimental imperfections in OPT instruments. While many efforts have been made characterize ...