Volume II-3/W5
ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., II-3/W5, 377-384, 2015
https://doi.org/10.5194/isprsannals-II-3-W5-377-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., II-3/W5, 377-384, 2015
https://doi.org/10.5194/isprsannals-II-3-W5-377-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

  20 Aug 2015

20 Aug 2015

ROAD ORTHOPHOTO/DTM GENERATION FROM MOBILE LASER SCANNING

B. Vallet and J.-P. Papelard B. Vallet and J.-P. Papelard
  • IGN, Laboratoire MATIS 73 Avenue de Paris 94165 Saint-Mandé, France

Keywords: Orthophotography, Digital Terrain Model, Road, Mobile laser scanning

Abstract. This paper proposes a pipeline to produce road orthophoto and DTM from Mobile Laser Scanning (MLS). For the ortho, modern laser scanners provide a reflectance information allowing for high quality grayscale images, at a much finer resolution than aerial photography can offer. For DTM, MLS offers a much higher accuracy and density than aerial products. This increased precision and resolution leverages new applications for both ortho and DEM. The first task is to filter ground vs non ground, then an interpolation is conducted to build image tiles from the filtered points. Finally, multiple layers are registered and blended to allow for seamless fusion. Our proposed approach achieves high quality products and scaling up is demonstrated.