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                <identifier>oai:data.mendeley.com/ffwgjdfn86.1</identifier>
                <datestamp>2023-07-06T19:43:44Z</datestamp>
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            <metadata><oai_dc:dc xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <dc:creator>Toledo, Rafael</dc:creator>
    <dc:title>Road Traversing Knowledge for Quality Classification</dc:title>
    <dc:publisher>Mendeley Data</dc:publisher>
    <dc:description>This dataset consists of 6.297 labeled images from Brazil&apos;s inner country roads captured by a low-cost camera (HP Webcam HD-4110) attached to a moving vehicle. The dataset presents three quality levels classes (good, regular, and bad) for each surface kind: asphalt, paved and unpaved. The only exception is the unpaved surface that does not contain the class &quot;good&quot; due to its poor nature. The number of images by surface-quality class is:

asphalt-good: 1978
asphalt-regular: 839
asphalt-bad: 464
paved-good: 1179
paved-regular: 324
paved-bad: 124   
unpaved_bad: 593
unpaved-regular: 796


All images were collected during the daytime in good weather conditions. The frames present lighting variations, shadows, and solar glare. Moreover,  it is also noticed intra-class variations, such as asphalt surfaces with different color intensities, e.g., older asphalts are usually lighter than the new ones; paved surfaces formed by different patterns, e.g., cobblestone and concrete; and unpaved surfaces, which are naturally uneven.

The directory is organized by subdirectories named with the &quot;surface_quality&quot;.</dc:description>
    <dc:subject>Image Classification</dc:subject>
    <dc:subject>Emerging Country</dc:subject>
    <dc:subject>Road</dc:subject>
    <dc:subject>Road Safety</dc:subject>
    <dc:contributor>von Wangenheim, Aldo</dc:contributor>
    <dc:contributor>Rateke, Thiago</dc:contributor>
    <dc:contributor>Justen, Karla</dc:contributor>
    <dc:type>Dataset</dc:type>
    <dc:identifier>doi:10.17632/ffwgjdfn86.1</dc:identifier>
    <dc:identifier>oai:data.mendeley.com/ffwgjdfn86.1</dc:identifier>
    <dc:rights>Creative Commons Attribution 4.0 International</dc:rights>
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    <dc:relation>https://data.mendeley.com/datasets/ffwgjdfn86</dc:relation>
    <dc:date>2023-07-06T19:43:44Z</dc:date>
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