Automated Localization and Classification of Expressway Pole-Like Road Facilities from Mobile Laser Scanning Data

Figure 15

Missing PLO detection (a-b): Site 1 and (c–h): Site 2. (a) Speed limit sign with a short trunk height and a small radius. (b) Telephone pole with the presence of surrounding noise points. (c) Small traffic light with a low density trunk. (d) Overhead sign at a ramp with large inclined poles. (e) Undetected lighting pole. (f) Speed limit sign with a small radius. (g) Kilometer poles with a square section. (h) Some small traffic signs with a short trunk height and a small radius.

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