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Sensor fusion of laser and vision in active pedestrian detection; Deteção ativa de peões por fusão sensorial de laser e visão

Azevedo, Rui Filipe Cabral de
Fonte: Universidade de Aveiro Publicador: Universidade de Aveiro
Tipo: Dissertação de Mestrado
ENG
Relevância na Pesquisa
37.37%
This work explores a technique of sensor fusion that aims to equip vehicles with pedestrian fast detection mechanisms in exterior environments. This method restricts image areas of search based on indicators obtained by another sensor (LIDAR). This technique is based on the idea that when having a registration among the involved sensors, one "fast" sensor, but inaccurate, that can indicate regions where potential pedestrian are located on the image, and another sensor, "slower" but more robust that is used to confirm detection more accurately. So, an algorithm was created to merge two algorithms, a LIDAR-based tracking and a vision-based detection algorithm; The LIDAR indicates the precise location and scale of the potential pedestrian on the image, and crop the image relative to the potential pedestrian, being processed afterwards by one pedestrian detection algorithm to validate the classification. The method is tested in two different cases and the results confirm their validity.; Este trabalho explora uma técnica de fusão sensorial que visa dotar veículos de mecanismos rápidos de detecção de peões em ambiente exterior. O método restringe as zonas de procura numa imagem com base em indicadores obtidos por outro sensor (LIDAR). Esta técnica tem como base a idéia de que havendo um registo entre os sensores envolvidos...

Constructal theory of pedestrian dynamics

Miguel, A. F.
Fonte: Elsevier Publicador: Elsevier
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
37.33%
The standard benefit of modeling pedestrian streams is the ability to quantify and understand flow patterns, which can be helpful to avoid some potentially dangerous situations. Here we show that the most basic features of pedestrian dynamics can be put on a unifying theoretical basis, which is provided by the constructal law. This law states that every flow system evolves in time so that it develops the flow architecture that maximizes flow access under the constraints posed to the flow. In this Letter,we develop a model of pedestrian streams that accounts for the influence of pedestrian density. The constructal law is invoked in order to quantify both the so-called optimal level of service and system capacity for pedestrian streams.

A Field Data Analysis of Risk Factors Affecting the Injury Risks in Vehicle-To-Pedestrian Crashes

Zhang, Guanjun; Cao, Libo; Hu, Jingwen; Yang, King H.
Fonte: Association for the Advancement of Automotive Medicine Publicador: Association for the Advancement of Automotive Medicine
Tipo: Artigo de Revista Científica
Publicado em //2008 EN
Relevância na Pesquisa
37.37%
The head, torso, and lower extremity are the most commonly injured body regions during vehicle-to-pedestrian crashes. A total of 312 cases were selected from the National Automotive Sampling System (NASS) Pedestrian Crash Data Study (PCDS) database to investigate factors affecting the likelihood of sustaining MAIS 3+, AIS 3+ head, AIS 3+ torso, and AIS 2+ lower extremity injuries during vehicle-to-pedestrian frontal crashes. The inclusion criteria were pedestrians: (a) aged 14 years or older, (b) with a height of 1.5 m and taller, and (c) who were injured in an upright standing position via vehicle frontal collision. The injury odds ratios (ORs) calculated from logistic regression analyses were used to evaluate the association between selected injury predictors and the odds of sustaining pedestrian head, torso, and lower extremity injuries. These predictors included a crash factor (impact speed), pedestrian factors (age, gender, height, and weight), and vehicle factors (front bumper central height, front bumper lead, ground to front/top transition point height (FTTPH), and rear hood opening distance (RHOD)). Results showed that impact speed was a statistically significant predictor for head, torso, and lower extremity injury odds, as expected. Comparison of people 65 years of age and older to young adults aged 14 to 64 showed that age was also a significant predictor for torso (p<0.001...

A Methodology for the Geometric Standardization of Vehicle Hoods to Compare Real-World Pedestrian Crashes

Koetje, Bethany D.; Grabowski, Jurek G.
Fonte: Association for the Advancement of Automotive Medicine Publicador: Association for the Advancement of Automotive Medicine
Tipo: Artigo de Revista Científica
Publicado em //2008 EN
Relevância na Pesquisa
37.41%
This paper describes a standardization method that allows injury researchers to directly compare pedestrian hood contact points across a variety of hood sizes and geometries. To standardize hood contact locations a new coordinate system was created at the geometric center of the hood. Standardizing hood contact locations was done by turning each coordinate location into a ratio of the entire length or width of the hood. The standardized pedestrian contact locations could then be compared for various hood sizes. The standardized hood was divided into a three-by-three grid to aggregate contact points into hood regions. Data was obtained from the National Highway Traffic Safety Administration’s Pedestrian Crash Data Study from 1994 to 1998. To understand injury severity with respect to pedestrian hood contact location, the injuries were narrowed to the single most severe Abreviated Injury Scale injury to the pedestrian and hood location at which that injury was sustained. Of the 97 pedestrian/vehicle cases, pedestrians received 270 injuries from 141 unique hood contact locations. After standardization, 36%, 28%, 36% of all contact points were located on the left, center and right side of the hood respectively. Vertically, 26%, 45%, 28% of contacts occurred at the front...

Modelling the environmental adaption of a collector road in an area of high pedestrian activity in the city of khon kean

Klungboonkrong, P.; Woolley, J.
Fonte: Institution of Engineers, Australia Publicador: Institution of Engineers, Australia
Tipo: Artigo de Revista Científica
Publicado em //2003 EN
Relevância na Pesquisa
37.37%
The concept of Environmental Adaptation seeks to create an environment that manages friction and impact on certain types of transport corridors (Type II). Such corridors frequently contain a mix of issues relating to pedestrian safety, business activity, convenience, amenity, site access, parking, public transport and the movement of motor vehicles. While the concept has been applied in some jurisdictions in Australia, its use is still not widespread as it involves a highly integrated strategic approach involving agreement between many stakeholders. However, where implementation has occurred, it has been very successful in introducing safety and in some cases the regeneration of business activities. An opportunity existed to apply the concept of Environmental Adaptation to an area of high pedestrian activity at a collector road on the Khon Kaen University Campus in Thailand. The area was problematic due to a large retail centre constructed next to the collector road attracting many pedestrians from campus buildings across the road including the Library, Faculty of Science and Faculty of Agriculture buildings. Although a pedestrian crossing was present, the existing infrastructure did little to reduce conflicts between pedestrians and traffic and public transport stops added to the complexity. It was decided to construct a distinct zone in which pedestrians could safely perform their crossing activities according to the principles of Environmental Adaptation. Quantifying the impact of such alterations is a difficult task and a novel approach using microsimulation modelling was used to provide visualisation and output for both pedestrians and traffic. A before and after scenario were modelled and travel times and delays were established for both motorists and pedestrians. Extensive traffic and pedestrian surveys were conducted to provide the basis for the modelling. Vehicle fleet characteristics had to be established and special pedestrian classes were also established so that they could be modelled in a simplistic manner. The microsimulation modelling was used along with artist impressions to promote the concept and conduct stakeholder consultation. This was an important step as the Environmental Adaptation concept had never been used before in this region of Thailand. This paper describes the concept and modelling concerning the implementation of the scheme.; http://search.informit.com.au/documentSummary;dn=464165354226185;res=IELENG; Pongrid Klungboonkrong and Jeremy E. Woolley; © Institution of Engineers...

Pedestrian reconstruction using multibody MADYMO simulation and the Polar-II dummy: a comparison of head kinematics

Anderson, R.; McLean, J.; Ponte, G.; Streeter, L.
Fonte: National Highway Traffic Safety Administration Publicador: National Highway Traffic Safety Administration
Tipo: Conference paper Formato: 0 bytes; application/pdf
Publicado em //2007 EN
Relevância na Pesquisa
37.33%
The aim of this study was to reconstruct three pedestrian collisions with multi-body simulations using the computer program MADYMO and the Polar-II dummy. In this paper, we compare the head kinematics of the computer simulation and the Polar-II test with reference to the vehiclepedestrian contacts in the actual cases. We also discuss aspects of the reconstructions made using these different tools, especially findings on the velocity trajectory of the head. The cases selected for reconstruction were ones in which the pedestrian’s height and weight were close to the 50th percentile adult human male, and where the accident investigation provided good estimates of impact speed and complete injury data. The cases were investigated to estimate the speed of the vehicle at impact and the position of the pedestrian relative to the vehicle. Contact points between the vehicle and pedestrian were recorded. From this information MADYMO simulations were made to estimate the kinematics of the pedestrian during the collision. We then reconstructed each case using the Polar-II full-scale pedestrian dummy. Results showed that some aspects of the head kinematics were in good agreement but, generally, Polar-II head impact angles were steeper and the head impact location was more forward than the location suggested by the simulations and the cases themselves. Leg kinematics were noticeably different...

Benefits for Australia of the introduction of an ADR on pedestrian protection

Anderson, R.; Ponte, G.; Searson, D.
Fonte: Centre for Automotive Safety Research Publicador: Centre for Automotive Safety Research
Tipo: Relatório
Publicado em //2008 EN
Relevância na Pesquisa
37.33%
This report estimates the benefits to Australia of the adoption of an ADR on pedestrian protection. It compares the sales-weighted performance of the Australian and European new car fleets in relevant pedestrian impact tests, based on test reports from EuroNCAP and ANCAP. These testing programs use very similar tests to those prescribed by the European Directive on pedestrian safety and a proposed Global Technical Regulation. This comparison showed that the pedestrian protection of the new car fleet in Australia is inferior to that of the new car fleet in Europe, and the difference is associated with the introduction of the first phase requirements of the Directive. The benefits to Australia of an ADR on pedestrian protection were calculated, based on benefit calculations that were estimated for a second phase of European regulation due in 2011. Proportional reductions of fatal, serious and slight casualties were applied to Australian casualty data and the associated crash costs. By examining the current performance of the new car fleet, these benefits were disaggregated into benefits that have already accrued since overseas and international regulation was mooted, and that which is yet to be realised through compliance of the new car fleet with a future regulation. An Australian Design Rule conforming to the proposed Global Technical Regulation with the addition of Brake Assist would reduce...

Metrication of the urban speed limit and pedestrian fatalities

McLean, A.; Anderson, R.
Fonte: University of Adelaide; CD Publicador: University of Adelaide; CD
Tipo: Conference paper
Publicado em //2008 EN
Relevância na Pesquisa
37.33%
In the early 1960s the urban area speed limit was increased from 30 to 35 mph in Victoria and NSW. With the introduction of metrication in 1974 the urban area speed limit of 35 mph (56 km/h) was changed to 60 km/h throughout Australia. The reason why 60 km/h was selected is discussed. A study of the likely relationship between travelling speeds and the incidence of pedestrian fatalities was conducted by the NHMRC Road Accident Research Unit (now the Centre for Automotive Safety Research) based on the results of detailed investigations of 176 fatal pedestrian crashes in the Adelaide area between 1983 and 1991. A reduction in the urban area speed limit from 60 to 50 km/h was predicted to result in a reduction of 30 percent in the incidence of pedestrian fatalities. The method developed to estimate this reduction is described and compared with the method used in more recent case control studies of travelling speed and the risk of casualty crash involvement. The effect on pedestrian fatalities where the urban area speed limit has been reduced from 60 to 50 km/h is also noted. Based on the above information, the consequences of the choice of 60 rather than 50 km/h for the urban area speed limit are estimated in terms of the incidence of pedestrian fatalities in Australia since 1974.; McLean A.J....

Potential benefits of an Australian Design Rule on pedestrian protection

Anderson, R.; Ponte, G.; Searson, D.
Fonte: University of Adelaide; CD Publicador: University of Adelaide; CD
Tipo: Conference paper
Publicado em //2008 EN
Relevância na Pesquisa
37.33%
This paper estimates the potential benefits to Australia from the adoption of an Australian Design Rule on pedestrian protection. Previously we compared the sales-weighted performance of the Australian and European new car fleets in relevant pedestrian impact tests, based on test reports from EuroNCAP and ANCAP. The comparison showed that the pedestrian protection of the new car fleet in Australia is inferior to that of the new car fleet in Europe. EuroNCAP and ANCAP use very similar tests to those prescribed by the European Directive on pedestrian safety and a proposed Global Technical Regulation. In the present study, the benefits to Australia of an ADR on pedestrian protection were estimated, based on benefit calculations that were estimated for a second phase of European regulation due in 2011. Expected proportional reductions of fatal, serious and slight casualties were applied to Australian casualty data and the associated crash costs. By examining the current performance of the new car fleet, these benefits were disaggregated into benefits that have already accrued since overseas and international regulations were mooted, and that which is yet to be realised through compliance of the new car fleet with a future regulation. It is estimated that an Australian Design Rule conforming to the proposed Global Technical Regulation with the addition of Brake Assist would reduce fatalities in Australia by approximately 28...

Pedestrian and cyclist crashes in the Adelaide Metropolitan Area

Hutchinson, P.; Lindsay, V.
Fonte: Centre for Automotive Safety Research Publicador: Centre for Automotive Safety Research
Tipo: Relatório
Publicado em //2009 EN
Relevância na Pesquisa
37.44%
Datasets employed. In-depth at-scene investigations of motor vehicle road crashes in the Adelaide Metropolitan Area were conducted in the period April 2002 to October 2005. The database from that study is used to throw light upon pedestrian and pedal cyclist crashes. The database of routinely-reported crashes is also utilised in respect of pedestrian and cyclist fatalities. Results. As pedestrian casualties are more numerous than cyclist casualties, the majority of results concern the former. In the 81 cases in the in-depth series, many different types of pedestrian accident can be identified. Of the 40 pedestrian fatalities in 2003-2006, 29 fell into at least one of the following three categories: at night, pedestrian was drunk, or pedestrian was elderly. Two points to note about this contrast between the two series are that (1) the in-depth study concentrated on crashes in normal working hours, and thus nighttime crashes are underrepresented, and consequently so is drunkenness, and (2) it is an open question whether there really are only three types of central story that cover the majority of pedestrian fatalities, or whether this finding is a consequence of the lack of detail in routine police data. Countermeasures. Taking the several series of crashes together...

Discrete features for rapid pedestrian detection in infrared images

Olmeda, Daniel; Armingol, José M.; Escalera, Arturo de la
Fonte: IEEE Publicador: IEEE
Tipo: info:eu-repo/semantics/acceptedVersion; info:eu-repo/semantics/conferenceObject Formato: application/pdf
Publicado em /10/2012 ENG
Relevância na Pesquisa
37.33%
In this paper the authors propose a pedestrian detection system based on discrete features in infrared images. Unique keypoints are searched for in the images around which a descriptor, based on the histogram of the phase congruency orientation, is extracted. These descriptors are matched with defined regions of the body of a pedestrian. In case of a match, it creates a region of interest in the image, which is classified as a pedestrian / non-pedestrian by an SVM classifier. The pedestrian detection system has been tested in an advanced driver assistance system for urban driving.; This work was supported by the Spanish Government through the Cicyt projects FEDORA (GRANT TRA2010-20225-C03- 01) and Driver Distraction Detector System (GRANT TRA2011-29454-C03-02), and by the Comunidad de Madrid through the project SEGVAUTO (S2009/DPI- 1509).; Proceeding of: 2012 IEEE/RSJ International Conference on Intelligent Robots and Systems October 7-12, 2012. Vilamoura, Algarve, Portugal.

Pedestrian detection in far infrared images

Olmeda Reino, Daniel
Fonte: Universidade Carlos III de Madrid Publicador: Universidade Carlos III de Madrid
Tipo: Tese de Doutorado
ENG
Relevância na Pesquisa
37.33%
Detection of people in images is a relatively new field of research, but has been widely accepted. The applications are multiple, such as self-labeling of large databases, security systems and pedestrian detection in intelligent transportation systems. Within the latter, the purpose of a pedestrian detector from a moving vehicle is to detect the presence of people in the path of the vehicle. The ultimate goal is to avoid a collision between the two. This thesis is framed with the advanced driver assistance systems, passive safety systems that warn the driver of conditions that may be adverse. An advanced driving assistance system module, aimed to warn the driver about the presence of pedestrians, using computer vision in thermal images, is presented in this thesis. Such sensors are particularly useful under conditions of low illumination.The document is divided following the usual parts of a pedestrian detection system: development of descriptors that define the appearance of people in these kind of images, the application of these descriptors to full-sized images and temporal tracking of pedestrians found. As part of the work developed in this thesis, database of pedestrians in the far infrared spectrum is presented. This database has been used in developing an evaluation of pedestrian detection systems as well as for the development of new descriptors. These descriptors use techniques for the systematic description of the shape of the pedestrian as well as methods to achieve invariance to contrast...

FDOT District Six Pedestrian Safety Web GIS Application

Florida International University
Fonte: FIU Digital Commons Publicador: FIU Digital Commons
Tipo: Artigo de Revista Científica
Relevância na Pesquisa
37.33%
A group of four applications including Top 20 Pedestrian Crash Locations: This application is designed to display top 20 pedestrian crash locations into both map- view and detailed information view. FDOT Crash Reporting Tool: This application is designed to simplify the usage and sharing of CAR data. The application can load raw data from CAR and display it into a web map interface. FDOT Online Document Portal: This application is designed for FDOT project managers to be able to share and manage documents through a user friendly, GIS enable web interface GIS Data Collection for Pedestrian Safety Tool: FIU-GIS Center was responsible for data collection and processing work for the project of Pedestrian Safety Tool Project. The outcome of this task is present by a simple web-GIS application design to host GIS by projects.

Pedestrian protection in vehicle impacts: demystifying pedestrian testing procedures and assessment

Ponte, G.; van den Berg, A.; Anderson, R.; Linke, B.
Fonte: ACRS; online Publicador: ACRS; online
Tipo: Conference paper
Publicado em //2013 EN
Relevância na Pesquisa
37.44%
The Centre for Automotive Safety Research has been carrying out the Australasian New Car Assessment Program's (ANCAP) pedestrian assessment since 2000. The pedestrian assessment procedures used by ANCAP are consistent with the European NCAP pedestrian testing and assessment protocols and have evolved considerably over time. The pedestrian assessment was independent of the ANCAP star rating procedure until 2012. As part of ANCAP's new vehicle safety rating requirements, a minimum pedestrian assessment result is now required for a vehicle to achieve an ANCAP five-star safety rating. This paper will summarise the current pedestrian testing and assessment procedures, as well as present a comparison of the headform score obtained between current and former test procedures when applied to the same vehicle. Additionally, the future of the ANCAP pedestrian testing program and the ANCAP road map will be briefly discussed.; http://acrs.org.au/events/acrs-past-conferences/2013-a-safe-system-the-road-safety-discussion/; http://acrs.org.au/wp-content/uploads/ACRS_Program_Final.pdf; Ponte, G. van den Berg, A. Anderson R.W.G & Linke, B.

A comparison of the pedestrian passive safety performance of the new vehicle fleet in Australia, France and the United Kingdom

Ponte, G.; Anderson, R.; Searson, D.
Fonte: Victorian Dept of Justice; Australia Publicador: Victorian Dept of Justice; Australia
Tipo: Conference paper
Publicado em //2007 EN
Relevância na Pesquisa
37.33%
Improvements to frontal vehicle design can improve a pedestrian's chance of survival in a collision but there are no design rules pertaining to pedestrian protection in Australia. Some overseas regulators are mandating a minimum level of pedestrian safety, and one consequence of this might be a flow of safer designs into the Australian vehicle fleet. To assess this, the distribution of pedestrian safety performance in the new car fleet of Australia was compared to those of France and the United Kingdom. A greater proportion of new passenger vehicles rated less than 2-stars for pedestrian safety by Euro NCAP and ANCAP are sold in Australia than in France and the United Kingdom. Furthermore, the portion of the new car fleet in France and the United Kingdom assessed by Euro NCAP/ANCAP since the beginning of 2006 has shown significant improvement and has a larger proportion of better performing vehicles than the equivalent segment of the Australian new car fleet. This period corresponds with the introduction of vehicle pedestrian safety requirements in Europe.; Giulio Ponte, Robert Anderson, Daniel Searson

Walk Urban : Demand, Constraints, and Measurement of the Urban Pedestrian Environment

Montgomery, Brittany; Roberts, Peter
Fonte: World Bank, Washington, DC Publicador: World Bank, Washington, DC
Tipo: Publications & Research :: Working Paper; Publications & Research
ENGLISH; EN_US
Relevância na Pesquisa
37.64%
"Overall support for the pedestrian environment," or walk ability, has grown increasingly important as the world urbanizes and motorized modes threaten to displace or constrain travel on foot. This concern encompasses virtually every aspect of the pedestrian experience. Walk ability takes into account the quality of pedestrian facilities, roadway conditions, land use patterns, community support, security, and comfort for walking (Litman). Each of these facets of the pedestrian environment impacts the use of walking as a primary mode of transport. The complexity of the urban pedestrian environment naturally lends itself to micro-level analysis to locate the need for improvements; however, to gain an overview of a city, it is necessary to develop macro-level indicators that can identify the general state of the pedestrian environment. While these indicators cannot diagnose all walk ability problems, they can give a sense of how one urban area compares to another in similar circumstances and they have the potential for becoming an influential aspect of World Bank urban infrastructure diagnosis. Urban Transport indicators are being reviewed as one component of the current Transport Results Initiative which is led by the World Bank's central Transport Unit.

Pedestrian-Induced Bridge Response: Using a modal response model to predict the vibrations of a bridge when subjected to periodic pedestrian loads

Rogers, Samuel
Fonte: Quens University Publicador: Quens University
Tipo: Tese de Doutorado
EN; EN
Relevância na Pesquisa
37.44%
The availability and use of new materials and construction techniques are allowing bridges to be built that are longer and more slender to those that have been constructed in the past. This can cause bridges to have lower stiffness and damping, and thus be less able to resist dynamic effects. This is of special concern for pedestrian bridges, because the harmonic loads that pedestrians apply to the bridge have the potential to excite the bridge’s natural frequencies. In addition, pedestrians can be sensitive to these vibrations. A model was developed in order to better understand the effects that a pedestrian can have on these vibration-prone bridges. The model consisted of two parts: a finite element model that used the structural data for the bridge in order to produce mass-normalized mode shapes, and a bridge-pedestrian interaction program that used the structural and modal data, along with pedestrian loading scenarios, to generate the bridge response. A parametric study of two bridges was conducted. The bridges included: a short span bridge that would not be expected to respond excessively to pedestrian loads, and a long-span, lively bridge that had natural frequencies in the range of pedestrian loading. Many loading cases were examined by varying the following parameters: load case...

Evaluating Applied Theatre Using Amateur Community Actors as a Modality for Pedestrian Education Among Primary School Students in Moshi, Tanzania

Dideriksen, Chrissy
Fonte: Universidade Duke Publicador: Universidade Duke
Tipo: Tese de Doutorado
Publicado em //2014
Relevância na Pesquisa
37.46%

Background: The WHO estimates that in 2010 there were over 10,000 road traffic injury related fatalities in Tanzania. Pedestrians accounted for a third of those fatalities. Education is essential to improving Tanzanians' road safety. Theatre has been used as a modality for education for many years, though most efficacy research focuses on professionally created and delivered theatre. The act of creating theatre is an inherently collaborative process, making it a good tool for participatory interventions that involve community members. Collaborative, theatre-based interventions have several benefits for global health projects: 1) they are relatively low-cost; 2) they incorporate community ideas encouraging stakeholder investment; and 3) they have potential to be self sustaining after development aid has stepped away. However, there are two main impediments to using collaborative theatre in global health interventions. First, there is little investigation on the efficacy of collaborative theatre to educate. Second, there are few guidelines to help drama-based programs take advantage of collaboration with amateur community members for health topics.

This study combined qualitative and quantitative methods to understand how participatory theatre with amateur community participants can convey health topics such as road and pedestrian safety in Tanzania. The study measured local primary students' pedestrian knowledge...

Pedestrian-Lighting Options and Roles of Responsibility Within Unincorporated Delaware Communities - A Working Paper

Patterson, Theodore; Gillespie, Ryan
Fonte: Universidade de Delaware Publicador: Universidade de Delaware
Tipo: Trabalho em Andamento
EN_US
Relevância na Pesquisa
37.41%
funded by the Delaware Department of Transportation; The purpose of this working paper is to document the research on the roles of responsibility and options for improving pedestrian lighting in unincorporated areas in Delaware. As a result of northern Delaware’s unique location within the Northeast corridor and southern Delaware’s tourist attractions and beaches, transportation challenges will revolve around improving current infrastructure to adapt and accommodate multiple modes of transportation in the 21st century. A road network that is accessible and integrated with bus routes, pedestrian connections, bike lanes, and rail transport is a network that will be well positioned to handle northern Delaware’s growing demand for efficient transportation systems. Unincorporated areas of Kent and Sussex Counties will require enhancements to transportation networks as Delaware’s population expands from urban northern Delaware to the more suburban and rural southern areas of the state. While pedestrian-lighting is desirable, there are several issues regarding lighting responsibilities within unincorporated areas of Delaware that include the following: • Determining options for fixture-styles • Financing capital costs for the purchase of poles and fixtures • Installing and maintaining the fixtures over the long term • Light-pollution mitigation • Financing annual maintenance costs and improvements This working paper reviews current practices in Delaware...

3D Vision Sensing for Improved Pedestrian Safety

Grubb, Grant; Zelinsky, Alex; Nilsson, Lars; Rilbe, Magnus
Fonte: Institute of Electrical and Electronics Engineers (IEEE Inc) Publicador: Institute of Electrical and Electronics Engineers (IEEE Inc)
Tipo: Conference paper
Relevância na Pesquisa
37.46%
Pedestrian-vehicle accidents account for the second largest source of automotive related fatality and injury worldwide. This paper presents a system which detects and tracks pedestrians in realtime for use with automotive Pedestrian Protection Systems (PPS) aimed at reducing such pedestrian-vehicle related injury. The system is based on a passive stereo vision configuration which segments a scene into 3D objects, classifies each object as pedestrian/non-pedestrian and finally tracks the pedestrian in 3D. Our system was implemented and tested on a Volvo test vehicle. Strong results for the system were obtained over a range of simple and complex environments, with average positive and false positive detection rates of 83.5% and 0.4% respectively.