Short Circuit Fault Detection against High Thermal Background Using a Two-Level Scheme Based on DoG Filter

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Items</td><td class="align_center">Technical parameters</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Detector type</td><td class="align_center">Uncooled focal plane array (UFPA)</td></tr><tr><td class="align_left">Infrared band</td><td class="align_center">8∼14 m</td></tr><tr><td class="align_left">Pixel</td><td class="align_center"><span style="width: 51.1506ptpx;"><svg height="8.69875pt" id="M68" style="vertical-align:-0.3499298pt" version="1.1" viewbox="-0.0498162 -8.34882 51.1506 8.69875" width="51.1506pt" 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="M412 140C382 77 369 73 315 73H129L270 222C362 320 402 379 402 466C402 571 322 635 234 635C177 635 130 609 99 576L42 495L64 475C90 514 133 568 201 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class="align_left">Thermal sensitivity</td><td class="align_center"><span style="width: 26.7148ptpx;"><svg height="11.1467pt" id="M71" style="vertical-align:-0.3500004pt" version="1.1" viewbox="-0.0498162 -10.7967 26.7148 11.1467" width="26.7148pt" 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="M535 290V340H323V533H265V340H52V290H265V84H323V290H535ZM535 -22V28H52V-22H535Z"></path></g><g transform="matrix(.013,0,0,-0.013,7.631,0)"><path d="M412 140C382 77 369 73 315 73H129L270 222C362 320 402 379 402 466C402 571 322 635 234 635C177 635 130 609 99 576L42 495L64 475C90 514 133 568 201 568C274 568 318 519 318 435C318 349 255 267 193 193C144 135 87 78 32 23V0H405C417 45 427 89 440 131L412 140Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,13.871,-5.741)"><path d="M339 262C339 340 273 403 193 403S48 340 48 262S113 121 193 121S339 184 339 262ZM283 262C283 210 242 168 193 168S104 210 104 262S144 356 193 356S283 314 283 262Z"></path></g><g transform="matrix(.013,0,0,-0.013,17.886,0)"><path d="M614 175C564 76 510 21 408 21C256 21 146 149 146 336C146 488 235 629 402 629C510 629 570 586 597 480L626 488C620 541 614 582 606 638C578 643 510 665 429 665C206 665 44 527 44 316C44 157 153 -15 402 -15C474 -15 558 5 586 11C604 45 629 119 643 165L614 175Z"></path></g></svg></span></td></tr><tr><td class="align_left">Frame rate</td><td class="align_center">50/60 Hz</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Basic technical parameters of the thermal camera.</div>

Complexity

tab4

Table 4

Table 4: Short Circuit Fault Detection against High Thermal Background Using a Two-Level Scheme Based on DoG Filter 