Jianxi Peng

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For improving validity and efficiency of 3D reconstruction from 2D engineering drawings, this paper presents a new method of primitive feature recognition based on graphics comparability determining of view loop. Main steps of this method are as follows: Firstly separate three views of single or combined primitive bodies by loop search, and then code view(More)
In order to address the existing problem that only the measurement of uncertainty is provided for the tolerance results, a calculating method of sphericity error evaluation standard uncertainties studied according to new Geometrical Product Specification and Verification(GPS). Sphericity error evaluation mathematical model based on minimum area method is(More)
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