| 摘要 |
<p>A laser scanner comprises a light projecting optical system 33 for projecting a distance measuring light 40 along a projection optical axis 34, a deflecting optical member 37 for deflecting and projecting the distance measuring light to a measurement area, an elevation angle driving unit for rotating the deflecting optical member in elevation direction, a horizontal angle driving unit 20, 21, 25 for rotating the deflecting optical member in horizontal direction, a distance measuring unit 4 for carrying out measurement based on a reflection light of the distance measuring light and for acquiring distance data of the measurement area, a second image pickup unit 6 capable of continuously acquiring image data including the measurement area, and a control unit 7, wherein the control unit has a first image processing unit for acquiring a three-dimensional image based on the image data and on the distance data, and also has a second image processing unit for detecting a mobile object by comparing image data being adjacent to each other in terms of time.
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