Recognition of Tunnel Lining Cracks Based on Digital Image Processing

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">Test object</td><td class="align_center">Quantity</td><td class="align_center">Recognition rate (%)</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">Ordinary concrete crack image</td><td class="align_center">400</td><td class="align_center">99.0</td></tr><tr><td class="align_left">Tunnel lining crack image</td><td class="align_center">400</td><td class="align_center">94.5</td></tr><tr><td class="align_left">Asphalt road crack image</td><td class="align_center">400</td><td class="align_center">87.0</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Analysis of test accuracy results.</div>

Mathematical Problems in Engineering

tab4

Table 4

Table 4: Recognition of Tunnel Lining Cracks Based on Digital Image Processing 