Using Geomatica Software - Fernerkundung Jena - Friedrich ...

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ARE REC Elevation Data Area under Bitmap. Calculates the true and projected areas, under a user-selected bitmap, from an elevation image. Creates or overwrites a 256-value database lookup table segment which can be used to transform or recode 8-bit image data stored on database image channels. Unspecified lookup table values can be defaulted to either zero or identity. No image data is changed. Vector Utilities: Raster vectorisation process flow: RTV -> VECMERGE -> VECCLEAN Raster statistics under buffered vector polygons, process flow: GRDPOL -> SCALE -> SHRINK -> THR -> MODEL -> RTV -> VIMAGE -> VECREP CONTOUR GRD GRDINT GRDPIN GRDPNT GRDPOL GRDVEC IDINT KRIGING RBFINT RTV Contour Generation from Raster Image. Creates a vector segment containing contour lines from a raster image, such as an elevation (DEM) image, given a specified contour interval. The contour value for each line is saved in either the Z-coordinate of all vertices or in a separate attribute field. Vector Grid Interpolation, Grids (fills in) the raster image channel,by interpolating image data between encoded vector data (normally created by the GRDVEC program). GRDVEC and GRDINT can be used to create digital elevation models (DEM). Point Grid Interpolation Generates a raster image by interpolating image values between specified pixel locations. Optionally associated with each input pixel grey level is a user-specified confidence level. Point Coverage Gridding Given a set of points stored in a vector segment, a raster image is generated where each grey level corresponds to the attribute value of the closest point. Polygon Coverage Gridding Convert polygons or arcs in vector segments to raster image or bitmap. Vector Encoding Encodes (burns in) vector data into existing raster image channel. The attribute value associated with each line and point in the vector segment is encoded into the image channel. The GRDINT program is used to grid (fill in) raster values between encoded vectors in the image channel. GRDVEC and GRDINT can be used to create a digital elevation mode (DEM) from contours. Inverse Distance Interpolation Generates a raster image by interpolating image values between specified pixel locations using the Simple Inverse Distance or Weighted Inverse Distance algorithm. Point Interpolation with Kriging Generates a raster image by interpolating points specified in vector segments, using the kriging method. Radial Basis Function Interpolation Generates a raster image by interpolating image values between specified pixel locations using a Radial Basis Interpolation Algorithm. This program implements the Multi-Quadric and the Thin Plate Spline schemes. Raster to Vector Conversion Takes as its input a raster image held in a channel on a PCIDSK file (preferably one which has been classified and/or well filtered). RTV then outputs vector data describing the boundaries and/or interior points of the areas (polygons) in the image. The generated vector data is stored in a created vector segment in the file.
VDEMINT VECBUF VECDIG VECMERG VESPRO VECREG VECREP VECRST VECSEL VIMAGE VSAMPLE Create Buffer Zone Around Vector Set Creates a graphic mask defining a buffer zone which surrounds vector data, given a user specified buffer width. Vector Digitization (<strong>Using</strong> Tablet) Interactively digitizes lines and points on a map using a tablet (digitizing table). Simultaneous feedback is provided on a video display. Lines and points are saved on a new PCIDSK database vector segment. Merge Database Vector Segments Merges two or more vector segments held in a PCIDSK file and writes the result to a new vector segment. Converts the input vectors to produce a new vector segment of vector data in the specified output projection. Vector Registration (Warping) Performs registration of vector data on a vector segment using a ground control point (GCP) segment or a georeferencing segment, to produce a new segment of transformed vector data. Vector Segment Report, Writes the contents of a vector segment to a report device. Rasterize Vectors This program rasterizes one or more vector segments with a provided RST into one or three raster channels. Vector Selection Performs selection of vectors for a window and/or range(s) of attributes to produce a new vector segment. Vector thinning may also be done on the output vectors. Collect Image Point/Polygon Statistics VIMAGE samples a raster image layer for each vector in a vector layer, and adds a column to the vector layer containing the requested sample statistics. Either point sampling, or polygon statistics can be computed. Sample Image Along Vectors This program samples pixels from one or more image channels that lie underneath a specified vector segment and writes the result to a txt file, or vector point layer. Watershed and Drainage Applications: DRAIN Drainage Basin From Elevation Data, Generates a drainage network data set channel using the flow accumulation data. DWCON Drainage Watershed Conditioning, Performs four conditioning procedures for drainage and watershed programs. This program must be executed before any drainage and watershed programs. OVERLND PPTABLE SEED Overland Path Generation, Finds the overland path (flow path) of the drainage network. The OVERLND program uses the point sources (start cells) from the STARTER program, and traces their overland paths until they enter the drainage network or encounter the edge of the image channel. Pour Point Table Report, Finds all the pour points between watersheds (i.e., a table of linkages for watersheds) and stores them in a table. Pour points are the points of lowest elevation on the common boundary between watersheds. Automatic Watershed Seed Starter Performs automatic seeding for delineation of sub-watersheds defined by major tributaries.
Page 1 and 2: Working Note: „Using Geomatica So
Page 3 and 4: 4. Termin: Datenvorverarbeitung: ge
Page 5 and 6: KB= 1024 Byte Kilobyte 2^10 = 1.024
Page 7 and 8: efriedigend. Z.T. existieren Erweit
Page 9 and 10: “VICAR, which stands for Video Im
Page 11 and 12: Shellprogrammen können schnell und
Page 13 and 14: Geomatica hat eine eigene, software
Page 15 and 16: EASI>s fav FILE - Database File Nam
Page 17 and 18: See also: DEMWRIT, DTEDWRIT, ERDASC
Page 19 and 20: STR LUT FUN MODEL, (ARI) Image Cont
Page 21 and 22: FEFROST FELEE FFROST FGAMMA KUAN FL
Page 23 and 24: Supervised Classification: Process
Page 25: SAM Spectral Angle Mapper Image Cla
Page 29 and 30: ! using: PCIMOD and DAS ! ! start o
Page 31 and 32: Abb. 5: GCPWorks Menü zur Georefer
Page 33 and 34: Determining the Accuracy of the Pol
Page 35 and 36: spatially by up to 1/2 a pixel, cau
Page 37 and 38: Abb. 6: Image Works Configurationsd
Page 39 and 40: • Select “ASTER” as the CD Fo
Page 41 and 42: Abb. 11: Ortho Engine “Automatic
Page 43 and 44: • Unter Area (2) Rechte Maus/Surr
Page 45 and 46: Abb. 14: Das ATCOR Modul in Geomati
Page 47 and 48: Abb. 17: Overview of the PCIDSK fil
Page 49 and 50: Abb. 20: Segment types in Geomatica
Page 51 and 52: Prerequisites: 3D Stereo requires G
Page 53 and 54: Hodgson, M.E. (1988). Reducing the
Page 55 and 56: Crist E.P. & R.C. Cicone, 1984b, Co
Page 57: Pieters C.M. & P.A.J. Englert (Eds.

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