The main idea of the Bi-directional and Double-original algorithm is to divide the stock into two parts using the local optimal principle,and set the division point as the original of the two layout region which is layout using improved approximate algorithm.

We can transform the area dividing problem of irregular polygon into that of triangles by geometric drawing and in this way, it is possible to divide the area at any division point on its side.

The adaptive algorithm to reduce a biquadratic Bézier curve to piecewise quadratic Bézier curves which based on curve sub-division points is presented.

A new method for laser point cloud segmentation is proposed,by which the point cloud was mapped onto the CCD image along with the method of extrinsic calibration of CCD image.

The improved extrinsic calibration method was proposed,and then a novel method for point cloud segmentation was presented,and finally the 3D reconstruction a.

In the research of election algorithm for the mobile agent system,previous researchers mainly focus on the node-partition and partition-merge problems,and pay little attention to problems such as convergence,unlimited diffusion and function conformity of system platform.

In order to fully use this simple algorithm to reject most invisible lines, two sets of inclined parallel orthogonal lines passing through four corners of the original window are constructed, forming a filtering window to carry out the midpoint subdivision algorithm.

The whole defect detection system is divided into 3 levels: defect judgment,defect segmentation and defect classification.