击中/击不中变换在标准答题卡分割中的应用  

Application of hit/miss transform in separation of standard answer card

作　　者：张香让[1] 崔喆[1] 

机构地区：[1]中国科学院成都计算机应用研究所,成都四川610041

出　　处：《计算机应用》2004年第10期141-143,共3页journal of Computer Applications

基　　金：中国科学院 2 0 0 3年度"西部之光"人才培养计划

摘　　要：击中/击不中变换是物体识别的一种方法,它对特定形状的物体识别具有很高的准确率,但是一般的击中/击不中变换算法速度比较慢。讨论了击中/击不中变换在标准答题卡分割系统中的应用及其算法实现。根据标准答题卡同步位和结构元素的几何特点,对算法进行了改进,将分割速度提高到原来的十倍。Hit/Miss transform is a method of object recognition. Its accuracy rate is quite high when dealing with something of specific shape. However,in general,its speed is rather low. The application of hit/miss transform in separation of standard answer card and the realizing of its algorithm were discussed here. According to the geometric features of synchronization position of answer card and structure element,some improvement on the original algorithm was made and the separating speed was decupled.

关 键 词：击中 击不中 答题卡 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]