Accuracy of 2-Dimensional Object Location Estimation Using Leaky Coaxial Cables

2011 ◽  
Vol 59 (6) ◽  
pp. 2396-2403 ◽  
Author(s):  
Kenji Inomata ◽  
Yashio Yamaguchi ◽  
Hiroyoshi Yamada ◽  
Wataru Tsujita ◽  
Masahiro Shikai ◽  
...  
Keyword(s):  
Location Estimation ◽  
Object Location ◽  
Dimensional Object

A novel 1-dimensional object location estimation algorithm using leaky coaxial cable

2013 ◽  
Vol 5 (3-4) ◽  
pp. 159-167
Author(s):  
Chen Peng ◽  
Wu Nan ◽  
Wang Pan-yang ◽  
Liu Xiao-long
Keyword(s):  
Estimation Algorithm ◽  
Location Estimation ◽  
Coaxial Cable ◽  
Object Location ◽  
Dimensional Object

scholarly journals Biases in object location estimation: the role of camera rotations and translation

2021 ◽  
Author(s):  
Vladislava Segen
Keyword(s):  
Older Adults ◽  
Spatial Memory ◽  
Spatial Information ◽  
Location Estimation ◽  
Object Location ◽  
Systematic Bias ◽  
Accurate Representation ◽  
Object Locations ◽  
Age Related

The current study investigated a systematic bias in spatial memory in which people, following a perspective shift from encoding to recall, indicated the location of an object further to the direction of the shit. In Experiment 1, we documented this bias by asking participants to encode the position of an object in a virtual room and then indicate it from memory following a perspective shift induced by camera translation and rotation. In Experiment 2, we decoupled the influence of camera translations and camera rotations and examined also whether adding more information in the scene would reduce the bias. We also investigated the presence of age-related differences in the precision of object location estimates and the tendency to display the bias related to perspective shift. Overall, our results showed that camera translations led to greater systematic bias than camera rotations. Furthermore, the use of additional spatial information improved the precision with which object locations were estimated and reduced the bias associated with camera translation. Finally, we found that although older adults were as precise as younger participants when estimating object locations, they benefited less from additional spatial information and their responses were more biased in the direction of camera translations. We propose that accurate representation of camera translations requires more demanding mental computations than camera rotations, leading to greater uncertainty about the position of an object in memory. This uncertainty causes people to rely on an egocentric anchor thereby giving rise to the systematic bias in the direction of camera translation.

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