Study on the degeneration of FBG sensing system

This article puts forward the concepts of attributes covering and item sets degeneration in database,and furthermore draws forth a new mining algorithm of association rules without generating candidate item sets.

Therefore, it is important that study degeneration of strain sensing system of FBG and resolve original data failure as a result of degenerate FBG.

By analysis on image degradation of X-ray imaging system, the restoration method of inverse filtering was introduced and an approximate restoration algorithm was proposed.

Image gray degradation and geometric transform are treated as image degradation,and image degradation invariant is proposed,and the construction of degradation invariant is analyzed.

In this paper the influences of imaging system on static image are discussed and modeling of image degradation isestablished (especially the transfer function) taking the transfer functions of the component parts of the system into consideration.

The improvement of two common used fingerprint image thinning algorithms;

This paper analyzes the shortages of quick thinning algorithm and improved OPTA thinning algorithm, an improved image thinning algorithm is proposed in the paper based on quick thinning algorithm and improved OPTA thinning algorithm in two stages.

Most of fingerprint recognition algorithm checks the special points by image thinning.