Iris recognition system is made up by iris localization component, iris image preprocessing, iris feature extraction and classification.
虹膜识别系统一般可由虹膜定位、图像预处理、虹膜特征提取和分类识别几个部分组成。
2
Method: the host molecule was selected and a single chemical component isolated from volatile oil by the host guest recognition.
方法：应用主客体识别原理，选择主体分子，经重结晶从挥发油中选择分离单一化学成分。
3
Methods Chemical pattern recognition was performed on the fruits of Ligustrum lucidum collected from various areas of China by PCA (principal component analysis) method.