Unfortunately, this is an all too common story: The convenience store clerk was alone when a man entered the store. He demanded money and cigarettes. When the clerk refused, the clerk was beaten and then shot, leaving no eyewitnesses to this horrific crime. But there was a ‘witness’ – the store had a single security […]
Surveying is an essential process in mapping, mining, construction, and architecture. This time and labor intensive process involves using a wide range of traditional and modern equipment to obtain measurements. Depending on the nature of the task, the required accuracy, and the challenges involved, a surveyor can use a tape measure/roller, a total station, a […]
With A Camera Blog Series In our second of the series we describe a unique and interesting application of measuring fabrics, sails, and flexible structures – something that is very hard to do with other methods. Introduction Flexible structures, such as sails, fabrics, flexible wings, and solar sails are very hard to measure […]
A New Blog Series We introduce a new blog series called “With A Camera“. With each blog post in this new series we describe an application of close range photogrammetry – that is, 3D measurement and modeling with a camera. The articles will describe significant real-world problems and how photogrammetry was able to uniquely solve […]
To get high accuracy with a drone photo-based survey, one usually needs to place and survey ground control points. Ground control points are either man-made targets (e.g. large cross) that you place on the ground before the flight, or visible natural features, surveyed with a high accuracy instrument (total station or RTK GPS). To achieve […]
When two or more cameras, affixed in un-moving positions, are used in a project, the images taken by these cameras can be replaced in the project without having to re-orient them. Doing this can save time and effort for project setups or camera rigs that are reused repeatedly. This procedure of swapping images on fixed […]
Eos Systems is introducing two new community programs: PhotoModeler Ambassadors and PhotoModeler Grants. PhotoModeler Ambassadors A PhotoModeler Ambassador is a keen member of the PhotoModeler community that regularly uses PhotoModeler and photogrammetric processes in their work, and regularly shares information, using various media, about their experiences with colleagues and the community. Ambassadors receive recognition in […]
Surveillance cameras are ubiquitous in public places. Crimes and/or the suspects participating in them are often captured on one or more of these cameras. Measuring the height of a suspect in a scene is usually a key piece of evidence in identifying the individual. PhotoModeler can be used to accurately measure the height of a […]
Do you find yourself adding the same layers and/or materials to each of your new PhotoModeler projects? Or do you need a way to organize most of your PhotoModeler projects the same way – so that you can more easily separate or group items and display them in isolation? If yes, or if you don’t […]
PhotoModeler has an interesting photogrammetry visualization tool for assessing the geometry and the structure of a 3D solution. This tool is called “Rays” – short for ‘visualized light rays’. A light ray is shown in the 3D View as a solid white line and portrays the vector that light would have traveled from the point […]