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Street pavement classification based on navigation through street view imagery

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Abstract

Computer vision research involving street and road detection methods usually focuses on driving assistance and autonomous vehicle systems. In this context, street segmentation occurs in real-time, based on images centered on the street. This work, on the other hand, uses street segmentation for urban planning research to classify pavement types of a city or region, which is particularly important for developing countries. For this application, it is needed a dataset with images from various locations for each street. These images are not necessarily centered on the street and include challenges that are not common in street segmentation datasets, such as mixed pavement types and the presence of faults and holes on the street. We implemented a multi-class version of a state-of-the-art segmentation algorithm and adapted it to perform street pavement classification, handling navigation along streets and angle variation to increase the accuracy of the classification. A data augmentation approach is also proposed to use preliminary results from the test instances as new ground truth and increase the amount of training data. A dataset with more than 300,000 images from 773 streets from a Brazilian city was built. Our approach achieved a precision of 0.93, showing the feasibility of the proposed application.

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Availability of data and material

The dataset (https://beautifulcities.herokuapp.com/cidade/1) is available online, as it may be useful for future works related to autonomous vehicles and urban planning in developing countries. Our dataset contains images with specific characteristics commonly present on urban scenes in developing countries, which distinguishes this from other urban scene databases. An application example built with real images is also available in the same link, where one can see our classification results and also navigate through the streets used in our experiments using Google Street View.

Code availability

The source used by or produced in our research is also available online (https://github.com/rgalvaomesquita/KittiSeg). The first author can be contacted in case of any doubts about the source code.

Notes

  1. https://www.google.com/streetview/.

  2. https://www.google.com/maps.

  3. https://github.com/hlwang1124/SNE-RoadSeg.

  4. https://beautifulcities.herokuapp.com/cidade/1.

  5. https://github.com/rgalvaomesquita/KittiSeg.

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Funding

This work is partially supported by INES (www.ines.org.br), CNPq Grant 465614/2014-0, CAPES grant 88887.136410/2017-00, and FACEPE grants APQ-0399-1.03/17 and PRONEX APQ/0388-1.03/14.

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Correspondence to Rafael G. de Mesquita.

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The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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de Mesquita, R.G., Ren, T.I., Mello, C.A.B. et al. Street pavement classification based on navigation through street view imagery. AI & Soc (2022). https://doi.org/10.1007/s00146-022-01520-0

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  • DOI: https://doi.org/10.1007/s00146-022-01520-0

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