is carried out on region basis. An imagery scene is modeled by the spectrally homogeneous regions restrained in shape and size. Given a set of low level image features for each region, perceptual grouping is performed on the regions to generate a higher level of structure, from which road segments are extracted. In our unique approach, perceptual grouping is based on the similarity of spectral,...

It is a focus to obtain traffic information from mobile phone location data in recent years. Based on mobile phone handover location technology, and considering the characteristics of the handover location data and drawbacks of the existing map matching algorithms, a new algorithm of road matching based on Fuzzy Logic is proposed. The general principle of this method is to firstly find out the ...

A robust and accurate road model estimation algorithm can greatly improve the performance of many Advanced Driver Assistance Systems (ADAS) applications such as lane detection, obstacle detection and road marking recognition. To estimate the road model, the proposed algorithm employs a stereo vision camera system. In this paper, local planar patches are efficiently estimated in the disparity do...

This paper presents innovations for detection of obstacles and road using a Multilayer Laserscanner. The classification of pedestrians and other road users require robust object tracking algorithms. Their reliability strongly depends on a precise ego-motion compensation. A new method of ego-motion estimation based on relative velocities of tracked objects will be introduced. This method operate...

In this paper we address the issue of road extraction from digital imagery using deformable contour models (snakes). We present a novel variation of the traditional snakes solution, where additional nodes are inserted, and redundant nodes are deleted, to better describe the complexity of the extracted line. Node insertion and deletion are based on an analysis of the energy terms of the snake so...

spinal cord injuries (sci) are highly disabling and injuries. this study aims to describe the demographic and epidemiologic data on auto accident patients who were admitted at khatam alanbia hospital. the results obtained from 73 sci patients treated on the sci inpatient units of the khatam alanbia hospital (from march 2009 to march 2013) were evaluated retrospectively. then patient gender, age...

road traffic accident (rta) is a global burden of disease. more than 1.25 million people per year are killed by rtas. more than half of the fatalities strike vulnerable road users (e. g. pedestrians, skaters, cyclists and other non-protected road users). the ongoing challenge is to protect vulnerable road users (vru). as a vru is neither shielded by seatbelts or crumple zones nor by airbags, th...

the optimum road spacing has been studied by many researches. it is an important step of forest road network planning. the goals of this study are determining the optimum road spacing in kheiroudkenar forest of nowshahr in northern iran and study of effect of kind of skidder on skidding cost and road spacing. continues time study method was used to determine the production rate of taf and timbe...

the suspension system of a vehicle is one of the most important parts which is involved in the process of vehicle designing. when a vehicle suspension system is designed, the evaluation of its performance against the road disturbances such as shocks and bumps are very important. the most commonly used systems consist of four hydraulic jacks with mobility in vertical line with low speed and low ...

OBJECTIVES To examine the relations between maximal and submaximal indices of aerobic fitness and off road cycling performance in a homogeneous group of high level mountain bikers. METHODS 12 internationally competitive mountain bikers completed the study. Maximum oxygen uptake (Vo(2max)), peak power output (PPO), power output (PO), and oxygen uptake (Vo(2)) at first (VT) and second (RCT) ven...