Systems for data processing, anaylsis and representation

Allam, Mosaad; Plunkett, Gordon

Bibliographic data

Monograph

Persistent identifier:: 1067490280

Title:: Systems for data processing, anaylsis and representation

Sub title:: ISPRS Commission II Symposium : June 6 - 10, Ottawa, Canada

Scope:: 1 Online-Ressource (XX, 530 Seiten)

Year of publication:: 1994

Place of publication:: Ottawa

Publisher of the original:: The Surveys, Mapping and Remote Sensing, Natural Resources Canada

Identifier (digital):: 1067490280

Illustration:: Illustrationen

Signature of the source:: ZS 312(30,2)

Language:: English

Additional Notes:: Erscheinungsdatum des Originals ist aus dem Copyrightjahr ermittelt.

Usage licence:: Attribution 4.0 International (CC BY 4.0)

Editor:: Allam, Mosaad; Plunkett, Gordon

Corporations:: Symposium Systems for Data Processing, Analysis and Representation, 1994, Ottawa; International Society for Photogrammetry and Remote Sensing; International Society for Photogrammetry and Remote Sensing, Commission Instrumentation for Data Reduction and Analysis; Kanada, Surveys, Mapping and Remote Sensing Sector

Adapter:: Symposium Systems for Data Processing, Analysis and Representation, 1994, Ottawa; International Society for Photogrammetry and Remote Sensing; International Society for Photogrammetry and Remote Sensing, Commission Instrumentation for Data Reduction and Analysis; Kanada, Surveys, Mapping and Remote Sensing Sector

Founder of work:: Symposium Systems for Data Processing, Analysis and Representation, 1994, Ottawa; International Society for Photogrammetry and Remote Sensing; International Society for Photogrammetry and Remote Sensing, Commission Instrumentation for Data Reduction and Analysis; Kanada, Surveys, Mapping and Remote Sensing Sector

Other corporate:: Symposium Systems for Data Processing, Analysis and Representation, 1994, Ottawa; International Society for Photogrammetry and Remote Sensing; International Society for Photogrammetry and Remote Sensing, Commission Instrumentation for Data Reduction and Analysis; Kanada, Surveys, Mapping and Remote Sensing Sector

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2019

Document type:: Monograph

Collection:: Earth sciences

Chapter

Title:: [Wednesday, June 8, 1994]

Document type:: Monograph

Structure type:: Chapter

Chapter

Title:: [Session G-2 WG II/5 - Integrated Production Systems]

Document type:: Monograph

Structure type:: Chapter

Chapter

Title:: The National Advanced Remote Sensing Applications Program, an Integrated System of Commercial Off-the-Shelf Components Gary Vanderhaven [...] Clifford W. Greve [...] K. Eric Anderson [...]

Document type:: Monograph

Structure type:: Chapter

cation and processing Ise of the apabilities processing fied image , he stereo would be rigorous -to-image ly when nsufficient ric stereo rigorous > used for nsuration ' fiducials, Digital quired for to include and the volumes, Height ; include ry, from rom the | require 1age to a map or performing image reprojection. All map projections included in USGS's standard coordinate transformation software, the General Cartographic Transformation Package, would have to be supported. The image processing functions specified for the system were: -Image zoom -Image rotation -Image pan -Image compression/decompression -High- and low-pass filters and edge- sharpening algorithms -Gray-scale remapping, with both interactive and automatic default adjustments and pseudocoloring. -Image flicker or wipe -Fading of image intensity independent of the intensity of any superimposed graphics. -Arithmetic and logical functions, including the capability to perform basic mathematical operations on a single image or on multiple images, to combine virtual memory planes, and to create a percentage mixture of two virtual-memory planes. The basic multispectral processing capabilities would include: -Manipulating bands by color plane. -Selecting band combinations to allow display of up to seven spectral bands and five additional derived bands all logically linked and managed as a single image. -Mapping any spectral band to any of the three primary colors. -Performing both supervised and unsupervised image classifications. Image classification functions would provide for statistical output and for postclassification smoothing and filtering of the image. A GIS would have to be provided as part of the System. It would need to possess both raster and vector capabilities and to be fully integrated with the System's image processing capabilities. Further, it would be important for the operators to be able to use the GIS in conjunction with the displayed images Without having to transfer from window to window. In other words a common user interface was desired. The GIS would need to permit the display of vector- based GIS information, in graphics form, Superimposable over both monoscopic and stereoscopic images The graphic presentation would have to be in stereo whenever the necessary elevation 275 data were available, and when not available, it would have to be displayed at the median elevation of the model. Although it was hoped that the system would be able to exercise the full-function set of vector GIS capabilities while viewing and manipulating an imagery model in stereo, at the very minimum the system should allow the user to select features for display by attribute, to digitize, edit, and save information in the GIS data base, and to query the GIS data base for attribute information, all while maintaining full image processing capabilities. The GIS would also need raster processing capabilities to permit conversion between raster and vector data sets, Boolean operations within raster data sets, and display of raster data sets in conjunction with registered images, with flicker, wipe, and split-screen image processing capabilities present. The system also must be capable of maintaining raster maps, orthophoto images, and near-orthophoto or nearly rectified images so that they could be readily displayed in answer to a geographic query. The GIS would need the capability of incorporating new or revised functions. The system would need enough mass storage capacity to permit storage of adequate data for analysis and to permit retrieval of that data in a timely manner. Although GIS and imagery data would not need to be integrated into the same storage scheme, they would have to be addressable in a similar manner. Finallythere would have to be an index accessible through the GIS that would index all system images, both those online and those in temporary storage. THE NARSAP SYSTEM The system purchased by the USGS was integrated by Autometric, Inc, of Alexandria, Virginia. All components are COTS items. The system consists of Silicon Graphics, Inc., (SGI) hardware, with ERDAS Imagine image processing software, including the Spatial Modeler, Vector Module, Image Catalog, Toolkit, OrthoMAX, and ARC/INFO GIS. The exact hardware configuration of the system as delivered consists of: The system server, an SGI Challenge L with dual CPU's, 128 Mb of memory, a 1.2-GB system disk, 24 Gb of shared disk space, an 8mm tape drive, and a CD-ROM drive. Five SGI Indigo Elan workstations, each with 96 Mb of memory, a 1-Gb system disk, 2-Gb

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