The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this paper, a shadow detection and removal framework for a video-based traffic monitoring system is proposed. The proposed framework is able to correctly detect if a video sequence has cast shadows that needs to be removed. Shadow detection results in 90.39% shadow detection rate and 88.71% shadow discrimination rate for different daytime traffic scenes with varying shadow strength. A traffic monitoring...
A piezoresistive silicon based stress sensor has been demonstrated successfully as an effective tool to monitor the stresses inside electronic packages during various production processes. More recently, the sensor has been evaluated as a sensor for Prognostics and Health Monitoring (PHM) systems. This paper presents a systematic approach that evaluates its performance from the perspective of failure...
For the purpose of engineering development for failure insert testing, a HiL model for automatic transmission was established and key boards of dSPACE system which contributed testing were set up. Aimed to simulate solenoid and sensor failure insert testing, the testing theory and method were introduced. Testing results showed that failure insert testing method can be used for solenoid and sensor...
The advanced sensing and imaging technologies of today's digital camera systems provide the capability of monitoring traffic flows in a very large area. In order to provide continuous monitoring and prompt anomaly detection, an abstract-level autonomous anomaly detection model is developed that is able to detect various categories of abnormal vehicle events with unsupervised learning. The method is...
Driver fatigue has getting more attentions from researchers. One of the methods to recognize driver fatigue is by monitoring driver's facial expression. Facial Action Coding System (FACS) is well-known in facial behavior sciences and Action Unit (AU) is used as the measurement. In this work, AU coded facial image is represented by Gabor filters in different orientations and frequencies, which are...
This keynote talk and paper intend to motivate research projects that investigate novel ways to model, analyze, and mitigate uncertainty arising in three different aspects of the cyber-physical systems. First, uncertainty about the physical environment can lead to suboptimal, and sometimes catastrophic, results as the system tries to adapt to unanticipated or poorly-understood environmental conditions...
Military vehicle functions are becoming more dependent on electrical energy. As a result, the power system architectures of military vehicles are anticipated to increase in complexity. They may benefit from using a vehicle electrical power management system (VEPMS) to monitor and control the vehicle's electrical power. This paper discusses preliminary investigations into potential enhancements for...
Route backtracking has been applied in many fields, especially in tracing criminal cars. However, because of weak light, shading or shelter, plate numbers are unable to be recognized and the vehicle cannot be traced. So, this paper put forwards a route backtracking method based on video data and road network. the method get routes information by means of vehicles features extraction and matching method...
Monitoring in large scale environments is a typical mission in cooperative robotics. This task requires the exploration of a huge domain by a generally small number of sensor equipped mobile robots. As time restrictions prohibit an exhaustive global search, a sampling strategy is required that allows an efficient spatial mapping of the environment. This paper proposes an adaptive sampling strategy...
Wireless technologies can help solve traffic congestions in urban environments, where road infrastructures develop slower than the sometimes exponential growth in the number of cars in traffic. We present a system for traffic control and congestion avoidance. The system monitors traffic using cars acting as data collectors. It aggregates the monitoring data into a traffic model, further used by cars...
This paper presents a study of a battlefield simulation platform with consideration of sensor network and optimal resources management. This development is mainly based on two public ally available software - GECCO and REPAST. The platform allows integration with a user developed optimization engine for optimal battlefield management. A simulation example was presented to show the application to a...
Monitoring the state of our roadways has become increasingly important in order to better manage traffic congestion. Sophisticated traffic management systems are being developed that are able to process both static and mobile sensor data that provide traffic information for the roadway network. In addition to typical traffic data such as flow, density, and average traffic speed, there is now strong...
As urban road intersections are prone to traffic congestion and traffic accidents, monitoring the crossing of vehicles and predicting the state is needed to reduce traffic congestion, regulate driver behavior and prevent accidents. Background subtraction and mean shift tracking are used to track vehicles. The whole monitoring process is as following. Firstly, secondary selected strategy is used to...
Automotive software design is a challenging task because of increasing system complexity. This paper proposes a model-based software development process for complex embedded systems in automotive applications. The gap between early requirement specifications and the development of electronic control units for specific features is bridged with an approach using executable specifications. Behavioral...
In this paper, we describe an unsupervised model of activity perception by vehicles trajectories in a visual surveillance scene. We introduce a novel trajectory similarity measure based on for comparing trajectories to cluster them. Then using the result of clustering, a dynamic probabilistic network model is constructed and behavior patterns of normal vehicle's trajectories are obtained. At last,...
This paper discusses the results of an application of a formally based verification technique, called Instrumentation-Based Verification (IBV), to a production automotive lighting controller. The goal of the study is to assess, from both a tools as well as a methodological perspective, the performance of IBV in an industrial setting. The insights obtained as a result of the project include a refinement...
Deploying radiation portal monitors (RPMs) at U.S. ports of entry requires an understanding of an RPM system's performance at sites with a large number of RPMs. This paper describes an RPM Multi-Lane Simulator that has been designed and implemented to simulate vehicle traffic at these sites. The Simulator's flexible architecture simulates vehicle traffic with its associated radiation profiles and...
This paper presents a driving simulation platform for the development of driver assistance systems (DAS) with the main purpose of promoting the testing of DAS hardware and advancing the verification of DAS performance. The platform uses a combination of two simulation loops, hardware-in-the-loop (HIL) and driver-in-the-loop (DIL). Its hardware consists of a simulation computer, a monitor computer,...
Creating fault detection software for complex mechatronic systems (e.g. modern vehicles) is costly both in terms of engineer time and hardware resources. With the availability of wireless communication in vehicles, information can be transmitted from vehicles to allow historical or fleet comparisons. New networked applications can be created that, e.g., monitor if the behavior of a certain system...
Unmanned aerial vehicles (UAVs) and unmanned ground vehicles (UGVs) have received much attention in the research and development community due to their strong potential in certain high-risk missions. In applications that involve multiple vehicles, the inter-vehicle communication and cooperation becomes a critical challenge to a successful mission. An effective co-operative control framework is required...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.