Aiming at the complex question of edge tracing,this paper presents a new system parallel mode with parallel data and parallel processing.

Realization of boundary tracking algorithm to trace stomach epidermis tumor;

An boundary tracking and extracting algorithm of the complicated binary images;

Rapid boundary tracking algorithm based on cerebrovascular image feature

In order to solve the problem of intricate texture in brain image,which makes it difficult to distinguish the normal boundaries from the abnormal ones,this paper presents a boundary tracing method based on wavelet transform.

The separation algorithm based on boundary tracing do not need the acute angle and/or the low density contrast at the points where the objects touched and get better separation result.

We formulate,in this paper,algorithms for boundary tracing based on automata.

A creative algorithm is provided and fulfilled based on the binary-value image,which is obtained through preprocessing and edge detection,to fetch points by means of raster scan and to extract contours by border following.

Based on the analysis of the Log operator,a creative algorithm,which fetching points by virtue of raster scan and extracting contours with border following,is provided and fulfilled ground on the binary-value images obtained through preprocessing.