نتایج جستجو برای: pedestrians

تعداد نتایج: 4215  

2012
SHIZUKA FUJISAWA YOSHIAKI TANIGUCHI HIROTAKA NAKANO

Existing systems for counting pedestrians in video sequences have the problem that counting accuracy is worse when many pedestrians are present and occlusion occurs frequently. In this paper, we introduce a method of clustering optical flows in video frames to improve the counting accuracy in cases where occlusion occurs. The proposed method counts the number of pedestrians by using pre-learned...

Journal: :Transportation research. Part F, Traffic psychology and behaviour 2011
Robert Wall Emerson Koorosh Naghshineh Julie Hapeman William Wiener

The increasing number of hybrid and quiet internal combustion engine vehicles may impact the travel abilities of pedestrians who are blind. Pedestrians who rely on auditory cues for structuring their travel may face challenges in making crossing decisions in the presence of quiet vehicles. This article describes results of initial studies looking at the crossing decisions of pedestrians who are...

2004
Jorge Batista

This paper presents a integrated solution to track multiple non-rigid objects (pedestrians) in a multiple cameras system with ground-plane trajectory prediction and occlusion modelling. The resulting system is able to maintain the tracking of pedestrians before, during and after occlusion. Pedestrians are detected and segmented using a dynamic background model combined with motion detection and...

2015
G. A. Zito D. Cazzoli L. Scheffler M. Jäger R. M. Müri U. P. Mosimann T. Nyffeler F. W. Mast T. Nef

BACKGROUND Crossing a street can be a very difficult task for older pedestrians. With increased age and potential cognitive decline, older people take the decision to cross a street primarily based on vehicles' distance, and not on their speed. Furthermore, older pedestrians tend to overestimate their own walking speed, and could not adapt it according to the traffic conditions. Pedestrians' be...

Journal: :Accident; analysis and prevention 2013
Jack L Nasar Derek Troyer

Research shows that pedestrians, similar to drivers, experience reduced situation awareness, distracted attention and unsafe behavior when talking or texting on their mobile phones. The present study centered on injuries related to mobile phone use among pedestrians. It used data from the US Consumer Product Safety Commission on injuries in hospital emergency rooms from 2004 through 2010. It fo...

2012
P. Pécol S. Dal Pont S. Erlicher

The aim of this communication is to propose a new crowd movement modeling considering a new particular subgroup behavior: pedestrians holding hands. The first step in this study is to improve our 2D crowd movement modeling [1-3] introducing the orientation of each pedestrian, rarely used in literature. The next step is to describe the particular subgroup behavior of the pedestrians who hold han...

2010
Ismail Arai Maiya Hori Norihiko Kawai Yohei Abe Masahiro Ichikawa Yusuke Satonaka Tatsuki Nitta Tomoyuki Nitta Harumitsu Fujii Masaki Mukai Soichiro Horimi Koji Makita Masayuki Kanbara Nobuhiko Nishio Naokazu Yokoya

Toward a really useful navigation system, utilizing spherical panoramic photos with maps like Google Street View is efficient. Users expect the system to be available in all areas they go. Conventional shooting methods obtain the shot position from GPS sensor. However, indoor areas are out of GPS range. Furthermore, most urban public indoor areas are crowded with pedestrians. Even if we blur th...

2014
Andrew C. Gallup Andrew Chong Alex Kacelnik John R. Krebs Iain D. Couzin

The mechanisms contributing to collective attention in humans remain unclear. Research indicates that pedestrians utilise the gaze direction of others nearby to acquire environmentally relevant information, but it is not known which, if any, additional social cues influence this transmission. Extending upon previous field studies, we investigated whether gaze cues paired with emotional facial e...

2007
Toru Ishida Takatoshi OISHI

Navigation of pedestrians using cellphones is a common practice today. Typical example of that is a navigation system using GPS, which obtains users' position and provides suitable maps for the situation. It is getting popular with the diffusion of GPS-capable cellphones. The navigation methods using pedestrians' location have the advantage and disadvantage. We can provide real-time information...

Journal: :Journal of vision 2006
Jelena Jovancevic Brian Sullivan Mary Hayhoe

In natural behavior, fixation patterns are tightly linked to the ongoing task. However, a critical problem for task-driven systems is dealing with unexpected stimuli. We studied the effect of unexpected potential collisions with pedestrians on the distribution of gaze of subjects walking in a virtual environment. Pedestrians on a collision course with the subject were surprisingly ineffective i...

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