Hybrid AI road markings analysis from a retroreflectometer
Résumé
Road markings are essential for driving. Their
characteristics are surveyed with dynamic retroreflectometers
and are provided in an aggregated form to managers, usually
averaged on 100 meter intervals. We have developed and tested
a road marking analysis method that represents the measured
signal as images and allows renderings at finer scales, such as
the marking segment scale. To do this, we used several artificial
intelligence methods. First, an architecture derived from UNet was proposed for the automatic segmentation of marking
elements. To check the consistency of the maps produced, we
tested several techniques used in natural language processing
with architectures such as LSTM and an attention mechanism
derived from Transformers. Since there exist no annotated
databases for this type of data, a Model-View-Controller software solution was developed to visualize, annotate and enhance
the data. This led to the implementation of a processing chain as
well as incremental learning methods. This paper presents both
the software for processing data and visualizing the results, the
methodology implemented and the first results obtained.
Domaines
Sciences de l'ingénieur [physics]Origine | Fichiers produits par l'(les) auteur(s) |
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