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This paper presents a novel simple method, IMGA, to solve the instantaneous motion problem of parallel mechanism. Based on the geometric regularity between constraints and motion of rigid body, IMGA method can be used to judge all the feasible instantaneous motion of parallel mechanism, and the type synthesis of instantaneous motion-free parallel mechanism. Based on the 3-PRS parallel mechanism, two...
By growing power and flexibility of modern GPU, hardware based volume rendering techniques show their great powers in accelerating rendering. In this paper, we propose a 3D texture base algorithm with local phong lighting model. It load medical image series as volume data, then creates 3D texture from the volume data, then setups and renders proxy-geometry to sample 3D texture. Phong model is used...
This paper analyzes the characteristics of impulse response function in squinted geometry. Based on this analysis the expression of side-lobe's slant angle is deduced explicitly. In the course of point target assessment, the proposed method picks the declining one-dimensional profiles by this angle. The simulation results show that the method is highly effective and practical compared with the line-by-line...
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