The VTI National Transport Library Catalogue

Adaptation of applications to image processing systems Andersson, Jörgen

By: Andersson, JörgenPublication details: Lunds universitet. Tekniska högskolan, 2000; Teknik och samhälle. Trafikplanering, ; Bulletin, Description: nr 187:2, s. 649-58Subject(s): Sweden | Conference | Image processing | Technology | Data acquisition | Pedestrian | Crossing the road | Pedestrian crossing | Walking | Speed | 21 | 841Bibl.nr: VTI P1494:187:2Location: Abstract: The object of the work presented is to find out how to adapt analysis software to the output from an image processing system (IPS). This combined package of IPS and analysis software is intended to be an aid to or a substitute for human observers when extracting/analysing traffic data. The system could be of use for research purposes as well as for municipal traffic engineering. The type of problem defines how accurate the result has to be. For instance, the Swedish conflict technique requires higher accuracy than a "simple" task like counting vehicles. It is difficult for human beings to estimate speed, distances and time lapses and even more so if there are more than two objects observed at the same time. Furthermore, collection of all kind of data is most often time consuming. We believe that a real time IPS is the answer to these problems. More data intensive applications, like the above mentioned conflict technique, require a real time IPS. The IPS delivers raw data, which is processed in the analysis software. Due to detection deviations, data may be improved by methods adapted to the application. This makes it possible to use even input data of less than perfect quality. Initial steps has been taken towards understanding how to merge an IPS and analysis software by actually applying the package on a real problem. Currently work is carried out concerning behavioural observation and analysis of pedestrians in intersections. The data extraction is done by using a semi manual IPS. For the analysis, software has been developed.
Item type: Reports, conferences, monographs
Holdings: VTI P1494:187:2

The object of the work presented is to find out how to adapt analysis software to the output from an image processing system (IPS). This combined package of IPS and analysis software is intended to be an aid to or a substitute for human observers when extracting/analysing traffic data. The system could be of use for research purposes as well as for municipal traffic engineering. The type of problem defines how accurate the result has to be. For instance, the Swedish conflict technique requires higher accuracy than a "simple" task like counting vehicles. It is difficult for human beings to estimate speed, distances and time lapses and even more so if there are more than two objects observed at the same time. Furthermore, collection of all kind of data is most often time consuming. We believe that a real time IPS is the answer to these problems. More data intensive applications, like the above mentioned conflict technique, require a real time IPS. The IPS delivers raw data, which is processed in the analysis software. Due to detection deviations, data may be improved by methods adapted to the application. This makes it possible to use even input data of less than perfect quality. Initial steps has been taken towards understanding how to merge an IPS and analysis software by actually applying the package on a real problem. Currently work is carried out concerning behavioural observation and analysis of pedestrians in intersections. The data extraction is done by using a semi manual IPS. For the analysis, software has been developed.

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