A Multi-Objective Evolutionary Algorithm Based on Spatial Distance

In order to improve the remains ratio of the image edge in the gray processing,considering the method of improved gray processing based on color spatial distance.

Based on combination of coordinate and attribute, three spatial distance measurements are defined.

Solution of Transform Formula between Image Pixel Distance and Space Distance

From grey relational analysis,this paper used a space distance formula that put together the best relational degree with the worst relational degree.

This method first construct eigenfaces vectors for every images in face database,second computes space distance with new image for every database face images to decide it is or not a face image.

Calculating method and appraising technique of highway 3D-view sight distance;

To obtain the parts surfaces’ constant scallop height after machining, a new toolpath generation algorithm named as curved surface mapping approach for 3D equidistant path-interval and conto.

It defines grey incident degree in the distance space and linear norm space and defines grey incident degree in some specific linear norm space.

By the expansion of Hamming distance, a new geometry model-distance space is introduced.

According to the definition of upper limit and lower limit of function on a certain spot in the distance space,and the definition of upper continuity and lower continuity of function on a certain spot,the article proves the equivalence condition of the upper continuity of function on a certain spot.