一种扭曲粘连字符验证码识别方法
尹龙,尹东,张荣,王德建
A Recognition Method for Distorted and Merged Text-Based CAPTCHA
YIN Long,YIN Dong,ZHANG Rong,WANG De-Jian
模式识别与人工智能 . 2014, (3): 235 -241 .