Applications of Remote Sensing 1

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LAR-IAC

GIS Image Processing

Examples2

LAR-IAC GIS Image Processing

Examples

ByGlen C. Gustafson, PhD.

Catalina ConservancyConsultant for

Remote Sensing & Mapping

Blue-2002@ GMX.net

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The Geographer, Vermeer 1668

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The Geographer, Vermeer 1668(brought up to date by image processing)

Applications of Remote Sensing 2

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Outline of Presentation

Fly-Thru Video

CIR & Multispectral Bands

3D Terrain Visualization

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Avalon ¼ Fly-Thru

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Part 1

MultispectralImage Bands

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Why is a “red car” red?

Applications of Remote Sensing 3

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Why bother with Infrared ?

Better atmospheric penetrationMuch better land/water contrastMuch better vegetation differentiationReveals unique differences between different kinds of surfaces

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Refraction of Lightby a Prism

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The Electromagnetic Spectrum

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Sensitivity of the Human Eye

Applications of Remote Sensing 4

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Aerial Film Sensitivity

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Haze Scattering of Light

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Pan & Infrared Film Sensitivity

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Red Filters in Aerial Photography

Applications of Remote Sensing 5

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Example Spectral Reflectance Curves

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Reflection from Vegetation

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Reflection from Grassvs. Artificial Turf

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Center-Pivot Agriculturein Kansas from Space

(SPOT Image)

Applications of Remote Sensing 6

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LARIAC Color vs. CIR(from 4-Band file)

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Color andColor IR Films

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Creating a 4-Band LAR-IAC Dataset

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Part 23D GIS Terrain Visualization

Applications of Remote Sensing 7

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Typical Data Layersfor

3D Terrain Visualization

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Creating a 3D Perspective Surface

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“Image Draping”of a GIS layer

over the 3D Terrain

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Image Draping of the USGS Digital Orthophoto Quarter Quad (DOQQ)

Applications of Remote Sensing 8

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CIR DOQQ Drape Result:Palm Springs, CA

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Software Controls over the 3D Perspective Surface

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Draping the LAR-IAC CIR Data Layer over the Model

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Optimizing the 3D View

Applications of Remote Sensing 9

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The Isthmus: The Result

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Creating the Fly-Thru Movie

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Shark Harbor & Little Harbor in Winter

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Using the Flight Path Editor

Applications of Remote Sensing 10

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Avalon LAR-IAC DEM Movie

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3D Perspective View Created to Illustrate Proposed Road

The elevation Model has been reprojected, looking North

The satellite image has been draped over the upper surface

This could be imagined as one frame of a video fly-thru !

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3D View of the Beaches (looking East)

Existing roads in yellow

Proposed road in red

Overall portrayal of the project region is understandable to the public

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Thank You!

Glen Gustafson, PhD.

Tel: (310) 510 - 1541

Blue-2002@GMX.net