![]() Photogrammetry is the art and science of using overlapping photographs to reconstruct three dimensional scenes or objects. The practice has been around for over a century, but has become especially popular over the course of the past decade with the proliferation of digital cameras and free or relatively inexpensive, but accurate, processing software. Best computer for agisoft photoscan free# In this article we will cover the basics of photography as they pertain to capturing photos for photogrammetry. First we will discuss the necessary and recommended equipment, then move on to choosing subjects, setting up your shots, taking those shots, and, finally, getting your photos ready for processing in photogrammetry software. It is possible to create successful 3D models from all sorts of cameras, from those housed in your phone to high-end digital single lens reflex (SLR) cameras, and everything in between. The better your camera’s resolution, the better the photos and resultant 3D model(s) will be. If you have a choice of lenses, it is best to pick a fixed focal length lens, e.g., 50mm.įor reference, an iPhone 6 has an 8 megapixel camera.Ī minimum resolution of 5 megapixels is a good rule of thumb. If you only have a variable focal length lens, just be sure to keep it at one specific length (either max or min) over the course of your shooting. If you have a point-and-shoot camera, simply avoid utilizing the zoom function during the course of your photography session. You should still be able to utilize autofocus. Various parties have experimented with using fisheye and macro lenses for photogrammetry. Most photogrammetry software packages advise against fisheye and other such extreme wide-angle lenses because of the inherent distortion that they cause in photos. ![]() Best computer for agisoft photoscan software# Macro lenses are rarely mentioned, but may prove less problematic than wide angle lenses. If using your phone’s camera, the best photos utilize high dynamic range (HDR). Optional equipment may be used to simplify or improve your photography:Ī tripod is perhaps the most useful piece of equipment that you can have for photogrammetry apart from your camera and computer. Assuming it is properly set up and isn’t being bumped or windblown, your tripod should eliminate any blurriness in your photos due to user shakiness. The tripod also permits you to take photos with longer exposure times, which is important when you are trying to get maximum depth of field (which you should be!). Best computer for agisoft photoscan free#.Best computer for agisoft photoscan software#.
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