Based on a lot of experiments, using technology of image processing and pattern recognition, the Interface extraction theory and methods of automatic foamed dreg were investigated.
本文通过大量的实验，综合运用图像处理和模式识别技术，深入、系统的研究了自动识别的理论和技术。
Automatic seal identification belongs to pattern recognition domain and includes seal segmentation, seal registration, feature extraction and feature identification these steps.
印章自动鉴定属于图像模式识别领域，其主要分为印文分割、印文配准、特征提取及特征识别几个步骤。
The second method is pattern matching algorithm based on the patterns of dictionary definition, we form some extraction rules by hands, the system then automatic extract synonyms by pattern matching.
第二部分是利用词汇定义模式，对词汇的释义方式进行分析，归纳总结出在词典释义中同义词出现的模式，进而利用模式匹配方法获取同义词。
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