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Image Processing System Considerations. Dr. John R. Jensen Department of Geography University of South Carolina Columbia, SC 29208. Jensen, 2003. Image Processing System Considerations.
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Image Processing System Considerations Dr. John R. Jensen Department of Geography University of South Carolina Columbia, SC 29208 Jensen, 2003
Image Processing System Considerations A digital image processing system consists of the computer hardware and the image processing software necessary to analyze digital image data. Consideration: Interactive versus Batch Processing * Quality of the Interface Jensen, 2003
ENVI Interface Jensen, 2003
ERDAS Interface Jensen, 2003
Image Processing System Hardware /Software Considerations * Central Processing Unit * Operating System and Applications Software * Random Access Memory (RAM) * Mass Storage (hard disk, CD, DVD) * Arithmetic Co-processor * Image Processing Memory (Graphics card) - CRT Screen display resolution - CRT screen color resolution * Serial versus Parallel Processing Jensen, 2003
Moore’s Law Jensen, 2003
Image Processing System Considerations Type of Computer: * Mainframe (> 32-bit CPU) * Workstation (> 32-bit CPU) * Personal Computers (16 to 32-bit CPU) Jensen, 2003
Image Processing System Hardware /Software Considerations * Central Processing Unit (CPU) * Random Access Memory (RAM) * Mass Storage (hard disk, CD, DVD) * Arithmetic Co-processor * Image Processing Memory (Graphics card) - CRT Screen display resolution - CRT screen color resolution * Serial versus Parallel Processing Jensen, 2003
Typical Digital Image Processing Laboratory Jensen, 2003
Remote Sensing Data Formats * Band interleaved by line (BIL) * Band interleaved by pixel (PIP) * Band sequential (BSQ) * Run-length encoding Jensen, 2003
Image Processing System Hardware /Software Considerations * Central Processing Unit (CPU) * Random Access Memory (RAM) * Mass Storage (hard disk, CD, DVD) * Arithmetic Co-processor * Image Processing Memory (Graphics card) - CRT Screen display resolution - CRT screen color resolution * Serial versus Parallel Processing * Storage and archiving capability Jensen, 2003
Serial Versus Parallel Processing * Requires more than one CPU * Requires software that can parse (distribute) the digital image processing to the various CPUs by - task, and/or - line, and/or - column. Jensen, 2003
Remote Sensing Data Storing and Archiving Considerations * Type of Media * Access to a read-write mechanism that works. Jensen, 2003
Longevity Jensen, 2003
Image Processing System Functions * Preprocessing (Radiometric and Geometric) * Display and Enhancement * Information Extraction * Image Lineage * Image and Map Cartographic Composition *Geographic Information Systems (GIS) * Integrated Image Processing and GIS * Utilities Jensen, 2003
The Major Commercial Digital Image Processing Systems - ERDAS - ENVI - IDRISI - ERMapper - PCI - Lots of photogrammetric Jensen, 2003
The Major Public Digital Image Processing Systems - JPL VICAR-IBIS - MultiSpec - C-Coast Jensen, 2003