Assessing Threat Posed to Video CAPTCHA by OCR-Based Attacks
نویسندگان
چکیده
for his invaluable guidance, support, time, and understanding (and tolerance) this past year. Lastly, I thank my parents for their perseverance in dealing with me for the last 24 years. It really is quite a feat.
منابع مشابه
Text Inpainting and Its Application in Video Captcha Text Removal
Video CAPTCHA improves the usability while reducing the attack success rate compared to a conventional text-based CAPTCHA. However, it remains vulnerable to OCR attacks. Thus, we proposed to use inpainting algorithms to remove the contained text in the video frames, so that the OCR success rate can be reduced without introducing unwanted artifacts that displease the endusers. We implemented Ber...
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