基于有限状态机的Invoice收票自动化系统  

An Invoice Confirmation System Based on Finite Automation

作　　者：施海昕 周雪峰 陈凯[2] 刘云锋 SHI Haixin;ZHOU Xuefeng;CHEN Kai;LIU Yunfeng(ICkey(Shanghai)Internet and Technology Co.Ltd.,Shanghai 201612,China;School of Electronic Information and Electrical Engineering,Shanghai Jiao Tong University,Shanghai 201240,China)

机构地区：[1]云汉芯城(上海)互联网科技股份有限公司,上海201612 [2]上海交通大学电子信息与电气工程学院,上海200240

出　　处：《微型电脑应用》2020年第11期86-89,共4页Microcomputer Applications

摘　　要：传统发票识别通常拿纸质发票扫描再采用OCR识别,识别准确率为80%至90%。而由于本案使用Word或者Excel格式转化成的pdf格式发票,文件保留了完整的字符信息和一些相对固定的格式信息。以编译原理的思维,把发票转化成的文本看作为一种编程语言,再用有限状态机去识别。实验结果表明,准确率可达99%以上,获得了满意的效果。Traditional invoice recognitionis usually completed by scanning paper invoices and then using OCR.The recognition accuracy is about 80%-90%.For our case,the invoice files contain complete character information and some relatively fixed format information.If the text from the invoice is regarded as a programming language,it can be recognized by a finite automaton.Experimental results show that the accuracy of this method can reach more than 99%,which is a satisfactory result.

关 键 词：有限状态机 发票识别 编译原理 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]