Zobrazeno 1 - 10
of 68
pro vyhledávání: '"George A. Geri"'
A software module for implementing auditory and visual feedback on a video-based eye tracking system
Publikováno v:
SPIE Proceedings.
We describe here the design and implementation of a software module that provides both auditory and visual feedback of the eye position measured by a commercially available eye tracking system. The present audio-visual feedback module (AVFM) serves a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71434e19848ddaba0ec2f90ad0a52241
https://doi.org/10.1117/12.2234846
https://doi.org/10.1117/12.2234846
Publikováno v:
Displays. 31:59-66
We examined the effect of observer motion on perceived time-to-contact (TTC) with an approaching target simulated on a wide-field display. In Experiment 1, we compared observer motion (OM) alone with target motion (TM) alone, and found that TTC estim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::495d4db0bbb5f449e5fc3af72705330d
https://doi.org/10.1016/j.displa.2009.11.002
https://doi.org/10.1016/j.displa.2009.11.002
Publikováno v:
Journal of Experimental Psychology: Human Perception and Performance. 34:475-488
The use of visual occlusion as a cue to altitude maintenance in low-altitude flight (LAF) was investigated. The extent to which the ground surface is occluded by 3-D objects varies with altitude and depends on the height, radius, and density of the o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0b0e9fec024d33b2ae2b596728fd15ca
https://doi.org/10.1037/0096-1523.34.2.475
https://doi.org/10.1037/0096-1523.34.2.475
Publikováno v:
SID Symposium Digest of Technical Papers. 38:318-321
study we examine a power spectral density metric for characterizing laser speckle and predicting its effect on target detection. To evaluate the metric, we measured contrast energy thresholds on both a laser speckle background and backgrounds consist
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f2fb26df8467126f15e7c3c9636d24b
https://doi.org/10.1889/1.2785295
https://doi.org/10.1889/1.2785295
Publikováno v:
SID Symposium Digest of Technical Papers. 38:322-325
Air-to-ground target identification was used to select simulated target characteristics that resulted in performance similar to that found in real-world tasks. for a wide variety of ground target-vehicles, it was found that simulated-target identific
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d52e131c9700fae331be1bd268167b6d
https://doi.org/10.1889/1.2785296
https://doi.org/10.1889/1.2785296
Publikováno v:
SID Symposium Digest of Technical Papers. 38:334-337
Perceptual motion blur was studied using imagery presented on an LCoS projector equipped with a mechanical shutter to reduce pixel hold-time. Perceptual measures of image blur were obtained with a simple test stimulus, as well as imagery similar to t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1ccdc119e8f72102afaedc0552de423
https://doi.org/10.1889/1.2785299
https://doi.org/10.1889/1.2785299
Autor:
George A. Geri, Brian P. Dyre, Robert Earl Patterson, Byron J. Pierce, William D. Morgan, Christine M. Covas, Shama C. Akhtar
Publikováno v:
Perception & Psychophysics. 68:593-600
In two experiments, we manipulated the properties of 3-D objects and terrain texture in order to investigate their effects on active heading control during simulated flight. Simulated crosswinds were used to introduce a rotational component into the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::41b50a49a936fdfad1a4c015810ece74
https://doi.org/10.3758/bf03208761
https://doi.org/10.3758/bf03208761
Autor:
Marc Winterbottom, George A. Geri
Publikováno v:
Displays. 26:159-169
In Experiment 1, antialiasing was found to improve performance on an orientation-discrimination task, whereas increasing display pixel-count did not. The latter finding was attributed to a decrease in image contrast associated with driving the CRT be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5265a7f1eca30e5c1840643593295ae3
https://doi.org/10.1016/j.displa.2005.06.003
https://doi.org/10.1016/j.displa.2005.06.003
Publikováno v:
Proceedings of the Human Factors and Ergonomics Society Annual Meeting. 45:1424-1427
Low-altitude flight performance was used to evaluate the effectiveness of the texture density cues used in high fidelity flight simulators. Observers were asked to maintain a constant above ground level (AGL) altitude over textured terrain whose elev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3eab5c81ca18f5d8849e42b2f14fa4a4
https://doi.org/10.1177/154193120104501824
https://doi.org/10.1177/154193120104501824
Publikováno v:
Proceedings of the Human Factors and Ergonomics Society Annual Meeting. 44:3-419
The ratio (τ) of a moving target's angular size to the rate of change in its angular size can be used by observers to judge the time remaining before they will collide with the target. We consider here whether optical flow information, consistent wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::127d498887dd703dc9e2ee3d6e714304
https://doi.org/10.1177/154193120004402111
https://doi.org/10.1177/154193120004402111