Process of making surveys and maps using photographs
Science of data and measurements from photographs and sensing systems.
a photographic technique that gives accurate measurements of the land from photograph taken from the air.
The techniques used to obtain reliable measurements from photographs.
The technology used to obtain reliable measurements, maps, digital elevation models, and other GIS data primarily from aerial photography.
The science of making reliable measurements by the use of aerial photographs.
The science or art of obtaining reliable measurements by means of photography
the field or profession that uses mapping and surveying, making use of plotters and aerial photographs to give a better understanding of property or lands.
a technique designed to overcome the problems of displacement caused by camera tilt, variations on the surface of the subject being photographed etc, in which stereo photography is used (stereo plotted) to provide a three dimensional image of the subject. In basic terms, it can be likened to eyesight, two eyes - one image.
The science of deriving the physical dimensions of objects from measurements on aerial photographs. More information on photogrammetry.
The art, science, and technology of obtaining reliable information about physical objects and the environment through processes of recording, measuring, and interpreting images and patterns of electromagnetic radiant energy and other phenomena.
The science of determining the dimensions of objects from photographs taken of them using special cameras. The Hasselblad 70mm cameras used on the lunar surface were equipped to provide photographs suitable for photogrammetry.
The technique of obtaining precise measurements from images.
Simple aerial photography contains distortion of shape, scale, and area due to several factors: curvature of the earth, differences in elevation on the ground, tilt of the aircraft, and parallax of the camera lens. Photogrammetry is the process of correcting some or all of these distortions.
the making of maps from air photographs.
The art and science of accurately measuring objects on the Earth's surface from a series of overlapping photographs (taken from aircraft or satellite).
The making of maps using aerial photographs.
The geometry of the geographical features is determined by digitising (aerial) photographs. Usually the geometric form of photogrammetic data is vector but raster data might also be produced by photogrammetry, e.g. digital orthophoto maps. The geographical features are identified by their appearance in the photograph.
Science or art of obtaining reliable measurements or information from photographs or other sensing systems.
The science or art of obtaining reliable measurements by photography. For GIS applications, aerial photogrammetry often provides the foundation to develop base maps.
a science of obtaining reliable information by measuring and interpreting photographs.
Method of obtaining accurate measurements from aerial photographs.
a method of measuring based on stereo photography and the extraction of x,y coordinates and distance measurement in a plane perpendicular to the line of sight, and extracting z values
The science of deducing the physical dimension of objects from measurements on photographs.
The science of obtaining accurate measurements through the use of aerial photographs and stereoplotting equipment.
The process of making maps from photographs, usually aerial photographs.
The art and science of obtaining reliable quantitative and qualitative measurements through the use of photographs.
The art and science of obtaining precise measurements from images.
The use of photography for mapping.
The science and technology of deducting the physical dimensions of objects from measurements on photographs. To obtain reliable information about physical objects and the environment, through processes of recording, measuring and interpreting images.
a general term for using photographs to derive measurements or point locations. Single-photo photogrammetry is equivalent to a plane transformation (see below) and can only yield information about points lying within a single plane. Photogrammetry as first used for 3D point determinations relied on the use of stereo pairs -- two photographs taken at the same time and with a fixed distance between the focal points of the two cameras. The two images could then be viewed with a stereo viewer or analyzed with standard trigonometric processes to determine the relative positions of any points visible in both photographs. If some points in the photos could be surveyed independently, all points could then be located in the same grid system. The system relies on very precise calibration of the cameras so that the calculations can yield reasonable precision; as a result stereo photogrammetry requires calibrated -- often called metric -- cameras, which are quite expensive. (See close-range photogrammetry for non-stereo-pair application of the principles of photogrammetry.)
The science or art of obtaining reliable measurements, and/or preparing maps and charts, from aerial photographs using stereoscopic equipment and methods.
The science of using aerial photographs and other remote sensing imagery to obtain measurements of natural and human-made features on the Earth.
the art or science of obtaining reliable measurements by means of photography.
Uses aerial photographs to produce planimetric and topographic maps of the earth’s surface and of features of the built environment. Effective photogrammetry makes use of ground control by which aerial photographs are carefully compared and registered to the locations and characteristics of features identified in ground-level surveys.
A professional discipline which uses stereography as a basis for scientific measurement and map-making.
method of making precise measurements from photographs.
The science of surveying and mapping using aerial photographs and stereographic plotters.
Photogrammetry is a measurement technology in which the three-dimensional coordinates of points on an object are determined by measurements made in two or more photographic images taken from different positions (see stereoscopy).