图像的边缘特征提取一直是计算机视觉领域里最重要的和最基本的研究任务之一。
The edge feature extraction of images has always been one of the most important and the most basic research tasks in the field of computer vision.
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。
Iris recognition system is made up by iris localization component, iris image preprocessing, iris feature extraction and classification.
该系统由图像预处理、特征提取、基于HMM的训练和识别四个模块组成。
It was composed of four modules: image preprocess, feature extraction, HMM-based training and word recognition.
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