随着当今社会信息化的高速发展，信息的采集和瓶颈问题就显得日益突出。尤其在智能系统方面对字符信息的采集及识别要求越来越高。比如：智能交通系统中车牌号码的识别，计量刻度中刻度提取与识别等。而对字符的识别处理一般包括字符的特征提取方法和识别算法。其中字符的特征提取是这个过程的重点和难点。-With today s rapid development of information society, information gathering and bottlenecks becomes increasingly prominent. Especially in intelligent systems for information collection and identification character increasingly demanding. For example: intelligent transportation systems for identifying, measuring scale in scale extraction and recognition of license plate numbers. The character recognition processing generally include feature extraction method and character recognition algorithm. Wherein the character feature extraction is important and difficult the process.