Paper Info
Title
SafeVchat: A System for Obscene Content Detection in Online Video Chat Services
Abstract
Online video chat services such as Chatroulette, Omegle, and vChatter that randomly match pairs of users in video chat sessions are quickly becoming very popular, with over a million users per month in the case of Chatroulette. A key problem encountered in such systems is the presence of flashers and obscene content. This problem is especially acute given the presence of underage minors in such systems. This article presents SafeVchat, a novel solution to the problem of flasher detection that employs an array of image detection algorithms. A key contribution of the article concerns how the results of the individual detectors are fused together into an overall decision classifying a user as misbehaving or not, based on Dempster-Shafer theory. The article introduces a novel, motion-based skin detection method that achieves significantly higher recall and better precision. The proposed methods have been evaluated over real-world data and image traces obtained from Chatroulette.com. SafeVchat has been deployed in Chatroulette. A combination of SafeVchat with human moderation has resulted in banning as many as 50,000 inappropriate users per day on Chatoulette. Furthermore, offensive content on Chatoulette has dropped significantly from 33.08% (before SafeVchat installation) to 3.49% (after SafeVchat installation).
Year
DOI
Venue
2013
10.1145/2499926.2499927
ACM Trans. Internet Techn.
Keywords
DocType
Volume
Online video chat service,SafeVchat installation,key problem,Obscene Content Detection,image detection algorithm,article concern,obscene content,flasher detection,Online Video Chat Services,novel solution,key contribution,motion-based skin detection method
Journal
12
Issue
ISSN
Citations 
4
1533-5399
0
PageRank 
References 
Authors
0.34
15
9
Name
Order
Citations
PageRank
Yu-Li Liang1242.69
Xinyu Xing237035.71
Hanqiang Cheng3293.48
Jianxun Dang4273.34
Sui Huang5161.58
Richard Han62771200.83
Xue Liu73058193.41
Lv Qin8111691.95
shivakant mishra91521138.23