Photogrammetry for Mobile Mapping: Bridging Degraded GPS/INS Performance in Urban Centers

This article on surveying and mapping innovations describes a system that uses photogrammetry to bridge the gaps in a Global Positioning System/Inertial Navigation System (GPS/INS). The authors seek to investigate using photogrammetry techniques to support navigation during GPS signal outages. They propose to fuse GPS data with imagery by adjusting the image measurements and the GPS raw data in a single adjustment step. The navigation solution is based on the INS stand-alone solution when the GPS signals are blocked. The photogrammetric reconstruction during GPS signal outages is investigated using a hybrid simulation. Images are simulated based on the imaging system used. The simulated exposure stations are contaminated with errors. Results show that the photogrammetric reconstruction accuracy is distance dependent, while the INS solution drift is time dependent. The adjustment process seems stable, and the researchers plan to extend the framework to include pictorial and navigation data from airborne mobile mapping systems and include shapes rather than just point features.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/10485104
• Authors:
  • Hassan, Taher
  • Ellum, Cameron
  • Nassar, Sameh
  • Cheng, Wang
  • El-Sheimy, Naser
• Publication Date: 2007-3

Language

• English

Media Info

• Media Type: Print
• Features: Photos;
• Pagination: pp 44-48
• Serial:
  • GPS World
  • Volume: 18
  • Issue Number: 3
  • Publisher: Advanstar Communications, Incorporated
  • ISSN: 1048-5104

Subject/Index Terms

• TRT Terms: Digital mapping; Geographic information systems; Global Positioning System; Inertial navigation systems; Mapping; Navigation; Navigational aids; Photogrammetry; Positioning; Referencing; Sensors; Surveying
• Subject Areas: Highways; Planning and Forecasting; Research; I21: Planning of Transport Infrastructure;

Filing Info

• Accession Number: 01044835
• Record Type: Publication
• Source Agency: UC Berkeley Transportation Library
• Files: BTRIS, TRIS
• Created Date: Mar 30 2007 6:59AM