Complex Background Removal Method for Video of an Inclined Cable Based on UAV Detection of Structural Vibration Frequencies

<table class="table-group" id="tab6"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left"> </td><td class="align_center">IMF1</td><td class="align_center">IMF2</td><td class="align_center">IMF3</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">Chaijiaxia Yellow River Bridge</td><td class="align_center">0.7849</td><td class="align_center">2.1580</td><td class="align_center">1.5629</td></tr><tr><td class="align_left">Nongye Road Bridge</td><td class="align_center">1.3023</td><td class="align_center">0.2718</td><td class="align_center">—</td></tr><tr><td class="align_left">Jiefang Road Bridge</td><td class="align_center">0.9255</td><td class="align_center">1.3712</td><td class="align_center">—</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Calculated <svg height="12.2532pt" id="M9" style="vertical-align:-3.29108pt" version="1.1" viewbox="-0.0498162 -8.96212 12.4773 12.2532" width="12.4773pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M620 675H597C578 656 570 650 541 650H144C112 650 104 653 94 675H72C59 618 42 552 23 493L53 491C71 534 88 564 105 585C124 608 144 615 238 615H290L197 121C182 40 174 34 88 28L82 0H361L367 28C275 34 266 38 281 121L374 615H441C522 615 543 608 553 583C562 560 566 531 565 493L597 494C603 551 612 629 620 675Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,7.176,3.132)"><path d="M504 89L488 119C453 85 428 69 416 69C408 69 405 75 412 102L462 304C492 438 460 451 436 451S388 441 356 423C311 397 229 336 170 256H168L189 340C208 418 200 451 177 451C144 451 82 413 24 352L40 322C65 345 98 369 108 369C114 369 119 363 112 335L28 -3L36 -12C54 -3 83 4 112 10C125 73 138 122 153 174C205 258 328 382 376 382C395 382 399 369 384 305L330 93C312 25 323 -12 351 -12C378 -12 439 21 504 89Z"></path></g></svg> using the proposed method.</div>

Structural Control and Health Monitoring

tab6

Table 6

Table 6: Complex Background Removal Method for Video of an Inclined Cable Based on UAV Detection of Structural Vibration Frequencies 