|
VisionMap A3 Digital Mapping System
A3 Digital Mapping System consists of a digital airborne camera and an automatic ground processing system produced by VisionMap. The A3 camera captures imagery using a sweep mechanism, which collects high resolution vertical and oblique imagery simultaneously. The captured data is post-processed by the A3 LightSpeed ground processing system in order to create the final output products. The A3 System is used by numerous national and regional mapping agencies, as well as commercial mapping firms. A3 Digital Mapping Camera The A3 camera consists of dual CCDs with two 300mm lenses mounted on a special motor controlled axis that is attached to the frame, a fast compression and storage unit, and a dual frequency GPS. During flight, sequences of frames are exposed in a cross-track direction at a very high speed, providing a FOV of up to 106 degrees. High resolution vertical and oblique images are captured simultaneously. The camera’s wide field of view maximizes the distance bet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aerial Photography
Aerial photography (or airborne imagery) is the taking of photographs from an aircraft or other flight, airborne platforms. When taking motion pictures, it is also known as aerial videography. Platforms for aerial photography include fixed-wing aircraft, helicopters, unmanned aerial vehicles (UAVs or "drones"), balloon (aircraft), balloons, blimps and dirigibles, rockets, pigeon photography, pigeons, kite aerial photography, kites, or using action cameras while skydiving or wingsuiting. Handheld cameras may be manually operated by the photographer, while mounted cameras are usually remote operation, remotely operated or triggered automatically. Aerial photography typically refers specifically to bird's-eye view images that focus on landscapes and Earth surface, surface objects, and should not be confused with air-to-air photography, where one or more aircraft are used as chase planes that "chase" and photograph other aircraft in flight. Elevated photography can also produce b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Field Of View
The field of view (FOV) is the angle, angular extent of the observable world that is visual perception, seen at any given moment. In the case of optical instruments or sensors, it is a solid angle through which a detector is sensitive to electromagnetic radiation. It is further relevant in ''angle of view, photography''. Humans and animals In the context of human and primate vision, the term "field of view" is typically only used in the sense of a restriction to what is visible by external apparatus, like when wearing spectacles or virtual reality goggles. Note that eye movements are allowed in the definition but do not change the field of view when understood this way. If the analogy of the eye's retina working as a sensor is drawn upon, the corresponding concept in human (and much of animal vision) is the visual field. It is defined as "the number of degrees of visual angle during stable fixation of the eyes".Strasburger, Hans; Pöppel, Ernst (2002). Visual Field. In G. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photogrammetry
Photogrammetry is the science and technology of obtaining reliable information about physical objects and the environment through the process of recording, measuring and interpreting photographic images and patterns of electromagnetic radiant imagery and other phenomena. While the invention of the method is attributed to Aimé Laussedat, the term "photogrammetry" was coined by the German architect , which appeared in his 1867 article "Die Photometrographie." There are many variants of photogrammetry. One example is the extraction of three-dimensional measurements from two-dimensional data (i.e. images); for example, the distance between two points that lie on a plane parallel to the photographic image plane can be determined by measuring their distance on the image, if the scale (map), scale of the image is known. Another is the extraction of accurate color ranges and values representing such quantities as albedo, specular reflection, Metallicity#Photometric colors, metallicity ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orthophoto
An orthophoto, orthophotograph, orthoimage or orthoimagery is an Aerial photography, aerial photograph or satellite imagery geometrically corrected ("orthorectified") such that the scale is uniform: the photo or image follows a given map projection. Unlike an uncorrected aerial photograph, an orthophoto can be used to measure true distances, because it is an accurate representation of the Earth's surface, having been adjusted for Topography, topographic relief, Barrel distortion, lens distortion, and camera tilt. Orthophotographs are commonly used in geographic information systems (GIS) as a "map accurate" background image. An orthorectified image differs from "rubber sheeted" rectifications as the latter may accurately locate a number of points on each image but "stretch" the area between so scale may not be uniform across the image. A Digital elevation model, digital elevation model (DEM) is required to create an accurate orthophoto as distortions in the image due to th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Stuttgart
The University of Stuttgart () is a research university located in Stuttgart, Germany. It was founded in 1829 and is organized into 10 faculties. It is one of the oldest technical universities in Germany with programs in civil, mechanical, industrial and electrical engineering, among others. It is a member of TU9, an incorporated society of the largest and most notable German institutes of technology. History From 1770 to 1794, the Karlsschule was the first university in Stuttgart. The University of Hohenheim in Stuttgart-Hohenheim, founded in 1818 and Stuttgart's oldest still existing university, is not related to the University of Stuttgart, except for some joint activities. What is now the University of Stuttgart was founded in 1829, and celebrated its 175th anniversary in 2004. Because of the increasing importance of the technical sciences and instruction in these fields, from 1876 the university was known as the Technische Hochschule Stuttgart (Stuttgart Institute of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Image Processing
An image or picture is a visual representation. An image can be two-dimensional, such as a drawing, painting, or photograph, or three-dimensional, such as a carving or sculpture. Images may be displayed through other media, including a projection on a surface, activation of electronic signals, or digital displays; they can also be reproduced through mechanical means, such as photography, printmaking, or photocopying. Images can also be animated through digital or physical processes. In the context of signal processing, an image is a distributed amplitude of color(s). In optics, the term ''image'' (or ''optical image'') refers specifically to the reproduction of an object formed by light waves coming from the object. A ''volatile image'' exists or is perceived only for a short period. This may be a reflection of an object by a mirror, a projection of a camera obscura, or a scene displayed on a cathode-ray tube. A ''fixed image'', also called a hard copy, is one that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aerial Cameras
Aerial may refer to: Music * ''Aerial'' (album), by Kate Bush, and that album's title track * "Aerials" (song), from the album ''Toxicity'' by System of a Down Bands * Aerial (Canadian band) * Aerial (Scottish band) * Aerial (Swedish band) Recreation and sport *Aerial (dance move) * Aerial (skateboarding) * Front aerial, gymnastics move performed in acro dance * Aerial cartwheel * Aerial silk, a form of acrobatics * Aerial skiing Technology *Aerial (radio), a radio ''antenna'' or transducer that transmits or receives electromagnetic waves **Aerial (television), an over-the-air television reception antenna *Aerial photography Other uses *Aerial, Georgia, a community in the United States * ''Aerial'' (magazine), a poetry magazine * ''Aerials'' (film), a 2016 Emirati science-fiction film *''Aerial'', a TV ident for BBC Two from 1997 to 2001 See also * Arial * Ariel (other) * Airiel * Area (other) * Airborne (other) * Antenna (disambiguati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
