Your CAPTCHA Recognition Method Based on DEEP Learning Using MSER Descriptor  

作　　者：Deepak Kumar Ramandeep Singh Sukhvinder Singh Bamber 

机构地区：[1]Faculty of Science and Technology,Lovely Professional University,Phagwara,144411,India [2]Lovely Professional University,Phagwara,144411,India [3]Department of Computer Science and Engineering,Panjab University SSG Regional Centre,Hoshiarpur,146021,India

出　　处：《Computers, Materials & Continua》2022年第8期2981-2996,共16页计算机、材料和连续体（英文）

摘　　要：Individuals and PCs(personal computers)can be recognized using CAPTCHAs(Completely Automated Public Turing test to distinguish Computers and Humans)which are mechanized for distinguishing them.Further,CAPTCHAs are intended to be solved by the people,but are unsolvable by the machines.As a result,using Convolutional Neural Networks(CNNs)these tests can similarly be unraveled.Moreover,the CNNs quality depends majorly on:the size of preparation set and the information that the classifier is found out on.Next,it is almost unmanageable to handle issue with CNNs.A new method of detecting CAPTCHA has been proposed,which simultaneously solves the challenges like preprocessing of images,proper segmentation of CAPTCHA using strokes,and the data training.The hyper parameters such as:Recall,Precision,Accuracy,Execution time,F-Measure(H-mean)and Error Rate are used for computation and comparison.In preprocessing,image enhancement and binarization are performed based on the stroke region of the CAPTCHA.The key points of these areas are based on the SURF feature.The exploratory outcomes show that the model has a decent acknowledgment impact on CAPTCHA with foundation commotion and character grip bending.

关 键 词：CAPTCHA MSER ANN SURF SNN 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]