Adaptive Difference of Gaussian for Speed Sign Detection in Night-time Conditions

2008 ◽  
pp. 453-464
Author(s):  
Tam Phuong Cao ◽  
Darrell M. Elton
Keyword(s):  
Night Time ◽  
Sign Detection ◽  
Difference Of Gaussian

scholarly journals Road Sign Detection Distance and Reading Distance at an Uncontrolled Intersection

2018 ◽  
Vol 65 ◽  
pp. 09004
Author(s):  
Mohamad Ihsan Priambodo ◽  
Martha Leni Siregar
Keyword(s):  
Vehicle Speed ◽  
Traffic Sign ◽  
Night Time ◽  
Detection Distance ◽  
Traffic Lights ◽  
Road Sign ◽  
Sign Detection ◽  
Travelling Time ◽  
Vehicle Travel Time ◽  
Reading Distance

A traffic sign needs to be located at a distance that allows drivers to read and understand the message prior to their decision in manoeuvring. The study is aimed at evaluating signs visibility at intersections without traffic lights using the drivers reading distance and detection distance. A total of 35 participants with valid driver’s licences were asked to detect and read 6 advance guide signs at an intersection without traffic lights on an urban road. Factors that potentially determine signs readability and visibility such as vehicle’s speed, vehicle’s travelling time, signs vertical offset and signs letter height which affect signs detection distance and reading distance are analyzed using multivariate regression. The experiment was conducted during night time to present heavier driving and sign reading environment. The positions of the signs were evaluated based on the actual sign positions and the detection and reading distances. Some of the findings include that vehicle travel time, vehicle speed, sign letter height, and sign vertical offset all significantly have a relationship with the sign reading distance whilst sign letter height does not have a significant relationship with the detection distance. The study also evaluated the signs compliance with the applied standards.

Reclaiming the Night-Time Economy

2016 ◽  
Author(s):  
Bianca Fileborn
Keyword(s):  
Night Time

Medicine and Empathy in Contemporary British Fiction

2017 ◽  
Author(s):  
Anne Whitehead
Keyword(s):  
Feminist Theory ◽  
Medical Humanities ◽  
Illness Experience ◽  
Contemporary Fiction ◽  
Theoretical Argument ◽  
Cultural Relations ◽  
Night Time ◽  
British Fiction ◽  
Definition Of ◽  
Relations Of Power

This book offers a critique of the dominant understanding and deployment of empathy in the mainstream medical humanities. Drawing on feminist theory, it positions empathy not as something that one has or lacks, and needs to accrue, but as something that one does and that is embedded within structural, institutional and cultural relations of power. It aims to provide a critically informed definition of empathy, drawing on phenomenology, in order to counter the vagueness of the term as it has often been used. It questions, too, the assumption that empathy is limited to the clinical relation, looking to a broader and more encompassing definition of the ‘medical’. Combining theoretical argument with literary case studies of Mark Haddon’s The Curious Incident of the Dog in the Night-Time, Pat Barker’s Life Class, Ian McEwan’s Saturday, Aminatta Forna’s The Memory of Love and Kazuo Ishiguro’s Never Let Me Go, this book contends that contemporary fiction is not a vehicle for accessing another’s illness experience, but itself engages critically with the question of empathy and its limits. The volume marks a key contribution to the rapidly evolving field of the critical medical humanities.

Distinction of Wet Road Surface Condition at Night-time using Texture Features

2012 ◽  
Vol 132 (9) ◽  
pp. 1488-1493 ◽  
Author(s):  
Keiji Shibata ◽  
Tatsuya Furukane ◽  
Shohei Kawai ◽  
Yuukou Horita
Keyword(s):  
Surface Condition ◽  
Texture Features ◽  
Road Surface ◽  
Night Time
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