According to the geometry deformation characteristic of scanned sequence image used in three dimensional computer radiotherapy treatment planning system,a sequence image normalizing method based on scanning image rulers has been developed.

In this paper,we present an efficient way to implement image size conversion by sample rate conversion,and give the algorithm to design linearphase finiteimpulse response (FIR) antialiasing filter and linearphase FIR interpolation filter.

Methods Using photographic scales and Glogau photoaging classification to grade 303 cases of female skin aging patients.

The result shows the icon is suitable for tapping operation of the wearable computer,when the ratio of the icon size to the width of graphical user interface(GUI) reaches 1/15.

The method based on wavelet transform performs a better performance than that based on Sub-sampling of image tiles when solving the problem of large scale image processing with limited memory size,hence it has been deeply researched.

But in the practice of application,the present models often subject to the influence of noises and fake edges,Based on the multi-scale image analysis,the improved gradient vector flow(GVF)is introduced to present a new active contour model.

In order to track a target in space and scale in a complex background,a target tracking algorithm based on the nonparametric clustering and multi-scale images is presented.