4 accepted papers
With the development of perceptual image encryption techniques, visual security evaluations of perceptually encrypted images have gained much attention. Current visual security indices isolate neither global nor local visual security evaluations. They ignore the fact that humans can reorganize parti…
In this paper, a novel contouring error estimation based on the canonical approximation is proposed, which is applicable for three-dimensional contours. The approximation is derived from the Taylor expansion locally of the desired contour. It retains major geometric properties of a spatial curve, cu
The contouring error and cross-coupled gains calculation have always been the critical issues in the application of cross-coupled control. Traditionally, the linear approximation and circular approximation are widely used to determine the contouring error and cross-coupled gains. However, for linear…
How to achieve the required contouring tracking accuracy especially during high-speed and large-curvature contouring tasks, has always been an important problem in manufacturing applications. In this paper, a contouring error estimation method based on natural local approximation is used, and then t…