Remotely sensed data are great sources of geospatial data. This course is about the creation of images using remote sensors, digital cameras, scanners and digitizers. In addition, image processing and analysis will be discussed.
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Electromagnetic spectrum
- Ultraviolet
- Visible
- Radar
- Microwave
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Remote Sensing and Image Interpretation and Analysis (NASA Site)
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Color model and color wheel
- Red, green and blue (RGB)
- Cyan, yellow, magenta and black (CYMK)
- Hue, saturation, and brightness (HSB)
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Creating images
- Remote sensors
- Scanners
- Digitizers
- Digital cameras
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Resolution
- Scanners
- Printers
- Monitors
- Digital cameras
- PC Cameras
- PC Telescope
- Tele-microscopy
- Remote geospatial Data Creation, Control and management
- Remote Research and Analysis
- Geo-audio-Video Conferencing
Image processing and interpretation
- Pixels defined
- Image types
- Monochrome
- Grayscale
- Pseudocolor
- Multiband / true color
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Contrast Stretching
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Spatial filtering
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Classification
- Supervised classification
- Unsupervised classification
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Image ratioing
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Image processing and analysis software
- USGS Mini - Image Processing System
- Clark Labs Idrisi 32
- Adobe Photoshop
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Remotely sensed data
- Digitized aerial photographs
- Landsat MSS and TM
- AVIRIS
- AVHRR
- Digital elevation models
- Geophysical data
- Seismic
- Gravity
- Magnetic
- Electric
- Sonar
- Thermal
- Radar
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Raster Data Formats
- JPEG (Joint Photographic Expert Groups)
- GIF TIFF (Tag Image Format File)
- ARC/INFO grid data
- IMG (ERDAS Imagine Image File)
- GeoTIFF Format
- BMP (Windows Bitmap Image File)
- BSQ (Band Sequential)
- BIP (Band Interleaved By Pixel)
- BIL (Band Interleaved By Line)
- PNG
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Importing images to GIS applications
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Image formats
Links
National Aeronautics and Space Administration (NASA)
NASA Destination: Earth
The NASA Remote Sensing Tutorial
USGS Mini Image Processing
System (MIPS)
NASA Visible Earth
NASA Earth Observatory
Clark Labs idrisi32
Geographic Analysis and Image Processing Software
ERDAS
American Society for Photogrammetry and Remote Sensing
(ASPRS)
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