79 articles listed in reverse chronological order. View articles by field type using links on the right.
The author discusses the use of photogrammetry in aircraft accident scene documentation. Major Adam Cybanski is the officer responsible
for helicopter investigation at the Canadian Forces Directorate of Flight Safety in Ottawa, Canada. He is a tactical helicopter pilot with over 20 years and 2500 hours on fixed and rotary wing aircraft.
 
“Recent years have seen a vast change in measurement technology. Data that were once extremely difficult and possibly dangerous to collect can now be collected and processed using only a digital camera and off-the-shelf software. Currently, digital close-range photogrammetry has made it possible to efficiently model a variety of structures in a budget-friendly manner. In this paper, a range of different types of structures were modeled. The viability of using this type of measurement is studied for different structure types, and the feasibility of using this method in conjunction with or as a replacement of other means is discussed”
 
The article shows that PhotoModeler Scanner can match (if not exceed) the accuracy of a laser scanner. This article also demonstrates the optimal way to set up photogrammetry projects to maximize DSM accuracy.
 
Many application specialists may find portable device (smartphone, tablet) cameras an attractive proposition where some modest photogrammetric capability would be useful. This paper investigates the geometric potential of these cameras for close range photogrammetric applications.
 
Long-term campaigns and flexible structures are regarded as two of the most challenging subjects in monitoring engineering structures. Long-term monitoring in civil engineering is generally considered to be labour intensive and financially expensive and it can take significant effort to arrange the necessary human resources, transportation and equipment maintenance. When dealing with flexible structure monitoring, it is of paramount importance that any monitoring equipment used is able to carry out rapid sampling. Low cost, automated, photogrammetric techniques therefore have the potential to become routinely viable for monitoring non-rigid structures.
 
The authors combine data from survey, UAS-based photogrammetry, and satellite to document a remote Buddhist fortress in Bhutan.
 
Video from Q13 Fox News in Washington State regarding the use of PhotoModeler by the Washington State Patrol. Unfortunately the video on the Q13 site is no longer available.
 
“To what extent can terrestrial photogrammetry be used for displays andor engineering purposes? What is the state-of-the-art of the technology? What were the difficulties encountered, and how were they circumvented? These are the questions we asked as we set out to determine how best to photograph and preserve the dinosaur tracks on Dinosaur Ridge in Morrison, Colorado…”
 
Over the past four years, Liscio, based in Toronto, has worked on nearly 60 cases around the world. Police use his reconstructions to test their theories of a crime. “You can start running different scenarios — what would happen if this person was a little to the left: would the trajectory still work? Or could the witness have actually seen the suspect at that point?” Liscio uses off-the-shelf 3D scanning equipment, such as the PhotoModeler Scanner made by EOS, to map entire crime scenes.
 
The aim of this work is the establishment of an efficient and accurate digital camera calibration method to be used in particular working conditions, as it can be found with our UAV (Unmanned Aerial Vehicle) photogrammetric projects.