Chapter 20 How time-to-contact is involved in the regulation of goal-directed locomotion

2004 ◽  
pp. 475-491 ◽  
Author(s):  
Gilles Montagne ◽  
Aymar De Rugy ◽  
Martinus Buekers ◽  
Alain Durey ◽  
Gentaro Tago ◽  
...  
Keyword(s):  
Time To Contact

Does the Presence of Biological Motion Facilitate Time-to-Contact Estimations?

2020 ◽  
Vol 64 (1) ◽  
pp. 1874-1875
Author(s):  
Ellen Szubski M.S. ◽  
Savana King ◽  
Rick Tyrrell Ph.D.
Keyword(s):  
Biological Motion ◽  
Time To Contact

TIME-TO-CONTACT INFORMATION ESTIMATION FOR MONOCULAR MOBILE ROBOTS

2008 ◽  
Vol 05 (03) ◽  
pp. 223-233 ◽  
Author(s):  
RONG LIU ◽  
MAX Q. H. MENG
Keyword(s):  
Mobile Robots ◽  
Optical Flow ◽  
Active Contour Model ◽  
Visual Navigation ◽  
Moving Object ◽  
Time To Contact ◽  
Temporal Derivative ◽  
Novel Method ◽  
Derivatives Of ◽  
Flow Experiments

Time-to-contact (TTC) provides vital information for obstacle avoidance and for the visual navigation of a robot. In this paper, we present a novel method to estimate the TTC information of a moving object for monocular mobile robots. In specific, the contour of the moving object is extracted first using an active contour model; then the height of the motion contour and its temporal derivative are evaluated to generate the desired TTC estimates. Compared with conventional techniques employing the first-order derivatives of optical flow, the proposed estimator is less prone to errors of optical flow. Experiments using real-world images are conducted and the results demonstrate that the developed method can successfully achieve TTC with an average relative error (ARVE) of 0.039 with a single calibrated camera.

Time-to-contact

1998 ◽  
Author(s):  
Michael Manser ◽  
Peter Hancock
Keyword(s):  
Time To Contact

scholarly journals Is obstacle avoidance controlled by perceived distance or time-to-contact?

2010 ◽  
Vol 6 (6) ◽  
pp. 136-136 ◽  
Author(s):  
H. Bruggeman ◽  
D. B. Rothman ◽  
W. H. Warren
Keyword(s):  
Obstacle Avoidance ◽  
Time To Contact

An adaptational model of time-to-contact prediction against multiple acceleration environment

2010 ◽  
Vol 68 ◽  
pp. e148
Author(s):  
Hiroyuki Kambara ◽  
Keiichi Ohishi ◽  
Yasuharu Koike
Keyword(s):  
Contact Prediction ◽  
Time To Contact
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