Baffletext: A human interactive proof

Proceedings of SPIE - The International Society for Optical Engineering

Volumn 5010, Issue , 2003, Pages 305-316

  Chew, Monica ^a   Baird, Henry S ^b  

^a UNIVERSITY OF CALIFORNIA   (United States)

^b PALO ALTO RESEARCH CENTER   (United States)

Author keywords

BaffleText; Completely Automatic Public Turing test to tell Computers and Humans Apart (CAPTCHAs); Gimpy; Human Interactive Proofs (HIPs); Optical character recognition (OCR); PessimalPrint; Psychophysics of reading; Turing tests

Indexed keywords

COMPUTATIONAL METHODS; CORRELATION METHODS; IMAGE ANALYSIS; INTERNET;

HUMAN INTERACTIVE PROOF;

MAN MACHINE SYSTEMS;

EID: 0038056097     PISSN: 0277786X     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1117/12.479682     Document Type: Conference Paper

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