Browsing by Author "Pelant, Petr"
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- ItemOptická metoda měření 3D posuvu pneumatické pružiny pomocí stereokorelace(Technická Univerzita v Liberci, 2006) Pelant, Petr; Jaksch, IvanThe diploma work verifies eligibility of using optical three-dimensional (3D) measurement to cylindrical air-spring shell displacements. In introduction theoretical principle of stereovision are summed up. Within the diploma thesis the scanning arrangement consisting of two same cameras was designed. Scanning is controlled by developed program. In MATLAB another program applies stereo-correlation method to a pair of scanned images of air-spring in course of loading. As an etalon was used steel cylinder of exactly known dimensions. The stereo-correlation method accuracy was verified by estimating geometrical parameters of the etalon. By the use of the nonlinear least-square optimization technique, the equation of steel cylindrical surface was solved to obtain a set of parameters. The reconstruction accuracy of scanned object was determined.