褶皱是指穿过指纹脊线和谷线的不规则条纹。
The crease is a kind of stripes irregularly crossing ridges and valleys in the fingerprint.
令人惊讶的是，你的指纹脊使您可以区分有少数微米表面细节。
Amazingly, the ridges of your fingerprints enable you to discern surface details on the order of a few microns.
个体指纹被采集成指纹图像后，首先采用基于自身灰度均值和方差的规格化方法，降低指纹脊、谷线之间的灰度变化程度；
Based on the mean value and variance, the image normalizing is to reduce the variations of gray between fingerprint ridges and furrows;
应用推荐