scholarly journals Optic Flow-Based Reactive Collision Prevention for MAVs Using the Fictitious Obstacle Hypothesis

2021 ◽  
Vol 6 (2) ◽  
pp. 3144-3151
Author(s):  
Feng Xiao ◽  
Peter Zheng ◽  
Julien di Tria ◽  
Basaran Bahadir Kocer ◽  
Mirko Kovac
Robotics ◽  
2017 ◽  
Vol 6 (3) ◽  
pp. 16
Author(s):  
William Gu ◽  
Gerald Seet ◽  
Nadia Magnenat-Thalmann

A customizable anthropomorphic telepresence robot (CATR) is an emerging medium that might have the highest degree of social presence among the existing mediated communication mediums. Unfortunately, there are problems with teleoperating a CATR, and these problems can deteriorate the gesture motion in a CATR. These problems are the disruption during decoupling, discontinuity due to the unstable transmission and jerkiness due to the reactive collision avoidance. From the review, none of the existing interfaces can simultaneously fix all of the problems. Hence, a novel framework with the perception-link behavior model (PLBM) was proposed. The PLBM adopts the distributed spatiotemporal representation for all of its input signals. Equipping it with other components, the PLBM can solve the above problems with some limitations. For instance, the PLBM can retrieve missing modalities from its experience during decoupling. Next, the PLBM can handle up to a high level of drop rate in the network connection because it is dealing with gesture style and not pose. For collision prevention, the PLBM can tune the incoming gesture style so that the CATR can deliberately and smoothly avoid a collision. In summary, the framework consists of PLBM being able to increase the user’s presence on a CATR by synthesizing expressive user gestures.


2003 ◽  
Author(s):  
Matthew J. Ahlert
Keyword(s):  

i-Perception ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 204166952098725
Author(s):  
Brian Rogers

In 1979, James Gibson completed his third and final book “The Ecological Approach to Visual Perception”. That book can be seen as the synthesis of the many radical ideas he proposed over the previous 30 years – the concept of information and its sufficiency, the necessary link between perception and action, the need to see perception in relation to an animal's particular ecological niche and the meanings (affordances) offered by the visual world. One of the fundamental concepts that lies beyond all of Gibson's thinking is that of optic flow: the constantly changing patterns of light that reach our eyes and the information it provides. My purpose in writing this paper has been to evaluate the legacy of Gibson's conceptual ideas and to consider how his ideas have influenced and changed the way we study perception.


2021 ◽  
Author(s):  
Jean-François Nankoo ◽  
Christopher R. Madan ◽  
Omar Medina ◽  
Tyler Makepeace ◽  
Christopher L. Striemer
Keyword(s):  

2020 ◽  
Vol 1502 ◽  
pp. 012025
Author(s):  
Sumendra Yogarayan ◽  
Siti Fatimah Abdul Razak ◽  
Afizan Azman ◽  
Mohd Fikri Azli Abdullah ◽  
Kirbana Jai Raman ◽  
...  

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