Indoor human localization based on the corneal reflection of illumination

Author(s):  
Kenji Numakura ◽  
Kentaro Takemura
1987 ◽  
Vol 6 (2) ◽  
pp. 149-156 ◽  
Author(s):  
Elizabeth Petrakis

This investigation analyzed the visual search patterns of novice and expert dance teachers when viewing a live performance of a dance composition. The hypotheses tested were that (a) experts would not differ from novices in the number of eye fixations and duration of each, (b) the number of fixations and duration of each would differ between dances, and (c) expert teachers’ search patterns would differ from those of novice teachers. The subjects were four experts who averaged 25.5 years of teaching, and five novice teachers who averaged 2.4 years. To determine the ocular fixation and scanning patterns of subjects, the NAC Eye Movement Recorder, a corneal reflection technique, was used. The films were analyzed using a computer program designed to collect the data. Two 2 × 2 (expertise and dances) analyses of variance were used to determine the differences in the number of fixations, duration of fixations, and differences of variable between dances. Chi-square was used to determine the location of scan patterns. Results indicated that the level of expertise did not influence the number or duration of each eye fixation, but the task being observed did influence these variables. Individual differences in visual scanning patterns were found among and within both groups.


1977 ◽  
Vol 21 (3) ◽  
pp. 179-183 ◽  
Author(s):  
Susanne M. Gatchell

Power boat operators' visual characteristics were recorded with a corneal reflection eye movement system in order to determine their foveal fixations. Data were collected while three (3) subjects performed three (3) different types of navigation tasks at three (3) velocities in two (2) boating environments. Results indicate that boaters scanned a significantly larger area to the right of the vessel during a limited access water condition than during an open water condition. More fixations to the right of the boat during a limited access water condition may be related to the fact that their cockpit station is on this side of the vessel. A significant velocity-navigation task interaction was observed for the duration parameters. It has been speculated that this effect was due to a speed/accuracy trade-off. During a channel task with increased velocities, the durations increased. McDowell (1975) related similar increases in automobile drivers' durations to processing information more accurately. The decrease in durations, which the boaters exhibited during compass and visual reference tasks, may be related to an increased information processing rate.


2013 ◽  
Vol 45 (4) ◽  
pp. 1322-1331 ◽  
Author(s):  
Julie Brisson ◽  
Marc Mainville ◽  
Dominique Mailloux ◽  
Christelle Beaulieu ◽  
Josette Serres ◽  
...  

2015 ◽  
Vol 11 (3) ◽  
pp. 831423 ◽  
Author(s):  
Mekuanint Agegnehu Bitew ◽  
Rong-Shue Hsiao ◽  
Hsin-Piao Lin ◽  
Ding-Bing Lin

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