Category Archives for "Background"
Posts with background on theory, photogrammetry, cameras, 3D, CAD, etc.
Innovative Ways Professionals Measure Your Home for Renovations
Home renovations of any size can be stressful to take on. When it’s time for you to renovate your home, you have a long list of tasks that need to be taken care of. One important part of a renovation that many people don’t think of is having different elements in their home measured. Although […]
Photogrammetry Applications in Aerial Photography
PhotoModeler Technologies’ photogrammetry software obviously has a wide variety of real-world applications, not the least of which is in aerial photography as performed by drones and other kinds of UAVs (unmanned aerial vehicles). Aerial Photography in Industry Land Surveying Disaster Relief Cartography Public Safety How Aerial Photogrammetry Applies Photo Triangulation Advantages of Aerial Photogrammetry UAVs […]
Photogrammetry and Car Crashes
Among photogrammetry’s many useful applications is in the area of car crashes, specifically the reconstruction of car crashes after on-site evidence has been removed. The ability of photogrammetry to remake car accident scenes is tremendously important to the police and forensic specialists who investigate the aftermath of these kinds of events. This is because car […]
What’s Involved in Crime Scene Photography?
Perhaps one of the most valuable applications of PhotoModeler Technologies’ photogrammetry software–which lets users measure areas from photographs–is in crime scene and forensic photography. Photogrammetry software is valuable to forensic photography because the images taken by crime scene photographers must often be used to present facts about conditions, distances, and placement to a court as […]
How Does Photogrammetry Work?
What Is Photogrammetry? Brief History of Photogrammetry Photogrammetry Locations Photography Essentials Uses for Photogrammetry How Does Photogrammetry Actually Work? At PhotoModeler Technologies, we feel that the customers who get the most excited about our software are the ones who best understand the field of photogrammetry. This makes sense since the people with a foundational knowledge […]
Low-Cost Cameras for Photogrammetry and Measurement
What makes a good low-cost camera for photogrammetry? Photogrammetry is the technique of using a camera to measure and model the real world. First note that low-cost is a relative term – we are not talking about a $150 camera – instead of between $500 and $900. This is more aptly titled: “What is the […]
Accuracy of Pile Volume Measurement with Photogrammetry
Accurate volume measurement of piles of material is important in a number of applications, such as: stock pile inventory management, volumes of tailing piles, volume of organic materials in composting operations, quarry pit size, mine reclamation, etc. These piles are difficult to measure due to their size, difficulty of traversing, and non-uniform shapes. The advent […]
Camera Fundamentals and Parameters in Photogrammetry
Photogrammetry is the science of using photographs to obtain measurements and models of real-world objects and scenes. Photogrammetric techniques involve using known information to help solve other, previously unknown information. Several critical pieces of known information concern the camera used to capture the photographs, and defining those pieces in mathematical terms known as camera parameters. […]
PhotoModeler’s Dense Surface Modeling Accuracy Study
We have completed an extensive accuracy study of PhotoModeler’s 3d scanning capability called Dense Surface Modeling (DSM). The full accuracy study article can be found here: Quantifying the accuracy of dense surface modeling within PhotoModeler Scanner. The article shows that PhotoModeler Scanner can match (if not exceed) the accuracy of a laser scanner. Using […]