We can draw and save the regions contour parameters by the technique of multi- contour tracking.

Contour tracking for infrared image based on the characteristic analysis of the local gray level;

Contour tracking using particle filter and differential evolution;

The reptile is a basic method for boundary contour tracking.

Contour tracing,anti-jamming work and data optimization for real ICT image were made and its result show that not only contour data was traced rightly but also the data was reduced l.

According to the requirements of the calibration of computer vision, a series of effective steps including dynamic threshold dividing, contour picking, contour tracing, and two stage calibration algorithm; and the whole process automation of the calibration were achieved.

Bring forth an image figure tracking algorithm,and compare it with traditional methods.

Quick approaches for contour following based on connected component labeling;

The edge points with single pixel width have been obtained by using of the algorithms of edge detector, edge thinning and contour following from consecutive images, and the edges obtained are represented as .