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Use of saccadic latency for visual inspection system
Author(s) -
Kotani Kentaro,
Nakajima Akira,
Asao Takafumi,
Horii Ken
Publication year - 2011
Publication title -
human factors and ergonomics in manufacturing and service industries
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.408
H-Index - 39
eISSN - 1520-6564
pISSN - 1090-8471
DOI - 10.1002/hfm.20276
Subject(s) - saccadic masking , computer science , latency (audio) , visual inspection , computer vision , task (project management) , artificial intelligence , interface (matter) , eye movement , simulation , engineering , telecommunications , systems engineering , bubble , maximum bubble pressure method , parallel computing
In some industrial inspection processes, multiprocess‐handling workers are required to enter the results of visual inspection tests without using their hands because of efficiency or hygiene reasons. We have developed a hands‐free visual inspection system by using saccadic latency, a temporal characteristic of saccadic eye movements. The proposed system is free from the Midas touch problem (i.e., the difficulty in developing an eye‐typing interface owing to the difficulty in differentiating between intentional blinks and gazes and natural ones). For verifying the system, an experiment was conducted in which ten subjects performed a visual inspection task. The average defect detection rates were 99.4%, and no Midas touch–related errors were observed. Results of the error analysis showed that redesigning the system interface would lead to a further enhancement of the system performance. © 2011 Wiley Periodicals, Inc.