Image-Processing Technology In Detecting System Of Fingerprint Device

Detecting system of Fingerprint device is a system that detects all technology-index. In detecting optics system resolution and system aberration coefficient can be automatically calculated, so, man-made mistake is avoided. In gathering image digital image quality evaluating function is added, so it can detect image definition. The system collection image by Beijing Microview Company's Mini-A image grad card dispose the data by Personal Computer and display detecting result of technology-index in time. At last, an experimental data in detecting system are given, and it obtains prospective effect that explains the practicability and applicability of detecting system in project.In this paper we first introduce researchful background, development and significant meaning of Image-Processing Technology, and then we discuss basic theory of Fingerprint device's detecting system, introduce detailedly its chief part and key technique. We follow to introduce and discuss some algorithms of image processing, such as image segmentation, model matching and image enhancement; and so on. Explain systemic software designing idea and every modularized work process. Lastly we show experiment result and required improvement of detecting system.Image of the paper experimentation collection all image by CCD vidicon or Fingerprint device. Algorithms are accomplished by Visual C++6.0 language in Windows2000 environment.