Recognition of retroreflective traffic signs by a vehicle camera system
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Kuupäev
2020
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Abstrakt
The systems of traffic sign recognition are based on the evaluation of three components
of every sign: shape, colour and pictogram. There are different factors that can have an influence
on the efficiency of detection and recognition of these components. One of the most important
factors is the quality of the retroreflective sign surface. Retroreflective sheeting improves the
readability of colour and pictogram of traffic sign by increasing brightness of its background
and/or legend elements. The aim of the paper is to provide a comprehensive survey of the
efficiency of sign’s recognition by a modern vehicle camera system. The traffic sign sheeting was
measured by the handled retroreflectometer. Then this measurement was repeated by the modern
camera system used for recognition of traffic signs in the vehicle. The results of this paper present
the analysis of the recognition efficiency of traffic signs and the overview of other factors that
can have a significant impact on sign detection and recognition distance. The results can be used
for creation a traffic sign database for learning-based recognition techniques to vehicle camera
systems.
Kirjeldus
Märksõnad
ADTF, recognition distance, attributes of the sign, TSDR, articles