Shuping Chen

Recognizing straight lines on raster display with a type of convex hull

This paper puts forward the method of undergoing the type conversion and sorting of convex hull on the homogeneous coordinate. The hyperbolic convex hull, one of hulls, can be used to recognize the existing region of straight lines on the raster display. It can be applied in both sides - how to find linear route as long as possible in curve lanes and the linear dealing procedure of curves.

Monitoring of Accoutrement Grinding

This paper describes a monitoring system of the accoutrement grinding based on multi sensors and aims at machining some super rigid materials such as ruby, sapphire and diamond. This method, with the help of the style of an accouterment, ascertains the shape and pose of an accouterment in machining, and a smart grinding force sensor is made up; the poses are detected by multi optical grating sensors; the style and facets are viewed by image sensors. Because of the diversity of the diamond quality and the crystal main direction angle related to a grinded facade, a strategy is adapted to control the feeding of grinding, that is, the feeding of grinding is restricted by the temperature, area of a forced facade, and grinding force.