scholarly journals The effect of monocular depth cues on the detection of moving objects by a moving observer

2012 ◽  
Vol 12 (9) ◽  
pp. 252-252
Author(s):  
C. Royden ◽  
D. Parsons ◽  
J. Travatello
2016 ◽  
Vol 124 ◽  
pp. 7-14 ◽  
Author(s):  
Constance S. Royden ◽  
Daniel Parsons ◽  
Joshua Travatello

2012 ◽  
Vol 43 (1) ◽  
pp. 1190-1193 ◽  
Author(s):  
Hirotaka Fujisaki ◽  
Haruto Yamashita ◽  
Ken Kihara ◽  
Sakuichi Ohtsuka

1966 ◽  
Vol 22 (1) ◽  
pp. 275-281 ◽  
Author(s):  
Bruce E. Dunn ◽  
Stuart W. Thomas

Ss viewed trapezoids and made absolute judgments of their degree of tilt around a vertical axis. The trapezoids were equal in horizontal length but the ratio of their vertical edges was 15:16 or 13:16. The height in the frontal plane of the midpoint of the shorter vertical edge varied from above (positive) to below (negative) the midpoint height of the longer vertical edge. Two extremes in the type of function to expect were predicted on the basis of past experimentation and geometric considerations. It was found that as the relative midpoint height went from negative to positive, perceived tilt increased linearly except for a brief reversal in the 15:16 condition. Perceived tilt was shown to be greater, but with some overlap, for the 13:16 trapezoids.


Perception ◽  
1997 ◽  
Vol 26 (1_suppl) ◽  
pp. 323-323
Author(s):  
M J H Puts ◽  
C M M de Weert

It is known that monocular depth cues become much less effective under isoluminance. One of these depth cues, occlusion, gives rise to surface completion. A study is reported in which the loss of completion under isoluminance was tested. A pair of horizontally aligned bars of different lengths is detected automatically in a display filled with pairs of bars of the same length. The pair is detected serially, when vertical bars are placed over the gaps between the pairs. Because the vertical bars are occluders, and the pairs of horizontal bars are aligned, completion behind the vertical bars takes place and the two parts together behave perceptually as a single bar. We used this knowledge to measure completion under isoluminance. When occlusion is lost under isoluminance, we expect that an occluding surface, isoluminant with the background, will not lead to object completion and as a consequence, the pair with unequal lengths of the parts will pop out. Using this procedure we have demonstrated that completion is lost under isoluminance.


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