Search

Measuring the electric field due to wireless communication systems is an important part for determining the electromagnetic pollution of the environment and consequently human exposure to these fields. Many difficulties need to be considered when performing these tests. An automated electric field measurement system is presented in this paper, associated with a statistical analysis of the results obtained from a survey in the GSM 900, GSM 1800 and 3G downlink frequency bandwidths for different time frames. Instantaneous measurements were taken at 1 second intervals and the minimum, maximum, average, standard deviation and the cumulative density were calculated. [ABSTRACT FROM PUBLISHER]

This paper presents a video acquisition system used to record high speed video sequences in order to measure human eyelid mobility. The human eyelid mobility is a highly dynamic process which requires a high speed monitoring system. A high speed video camera is used to acquire video sequences of the subject face. The video sequences constituting the data base that are used to study eyelid mobility remain stored as binary files on the computer hard drive. [ABSTRACT FROM PUBLISHER]

A lane mark detection system is a driver assistance tool that automatically recognizes the lane mark painted on the road and the lane that he is travelling in. Such a system can warn the driver when has the tendency to move out from the lane, without being aware of it. This kind of system is a part of Advanced Driver Assistance Systems (ADAS), systems that has the goal to improve road safety. In this paper we propose an algorithm that automatically emphasizes the lane marks and recognizes them from digital images, by the use of Hough transform. [ABSTRACT FROM PUBLISHER]

Since the convention on road signs and signals from 1968, standard traffic signs, impose the rules on the road. Some system that are capable of recognizing these signs are known as traffic sign recognition (TSR) systems. This system is part of Advanced Driver Assistance Systems (ADAS), which has the goal to improve road safety. In this paper we present an experimental system that uses a wireless communication in order to recognize traffic signs, placed along the road. Using Radio Frequency Identification (RFID) technology, the system manages to recognize the signs and, through a Human Machine Interface (HMI), it warns the driver about the presence of the traffic sign. [ABSTRACT FROM PUBLISHER]

This paper presents a virtual instrument for communication with a weather station that transmits information on measured environmental parameters using a radio telemetry units. The user interface is built in LabVIEW visual programming environment. This makes a PC serial or TCP/IP communication between a terminal and the central unit of the weather station, the information received is decoded and played back using the user interface program. [ABSTRACT FROM PUBLISHER]

This paper presents an image processing algorithm designed to measure eyelid movements during blinking. First, the facial features of the subject are detected and tracked; then, the eye regions of interest are extracted using information regarding face orientation and eyelids position. In the next stage, the eyelid line is detected from the image, after which the eyelid characteristics are extracted from the eyelid movement measurements. [ABSTRACT FROM PUBLISHER]