CAPTCHA challenge tradeoffs: Familiarity of strings versus degradation of images

Proceedings - International Conference on Pattern Recognition

Volumn 3, Issue , 2006, Pages 164-167

  Wang, Sui Yu ^a   Baird, Henry S ^a   Bentley, Jon L ^b  

^a Lehigh University   (United States)

^b AVAYA LABS RESEARCH   (United States)

Author keywords

CAPTCHAs; Document image analysis; Familiarity; Gestalt perception; Human interactive proofs; Image recognition; Linguistic context; Markov scores

Indexed keywords

COMPUTER VISION; GLOSSARIES; KNOWLEDGE ACQUISITION; LINGUISTICS; OPTICAL CHARACTER RECOGNITION; WORD PROCESSING;

DOCUMENT IMAGE ANALYSIS; FAMILIARITY; GESTALT PERCEPTION; HUMAN INTERACTIVE PROOFS; LINGUISTIC CONTEXT; MARKOV SCORES;

IMAGE RECOGNITION;

EID: 34147116729     PISSN: 10514651     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1109/ICPR.2006.355     Document Type: Conference Paper

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