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100468122-Photogrammetry-and-Remote-Sensing

Remote sensing ayman f habib 40 ground based sensors

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Remote Sensing Ayman F. Habib 40 Ground Based Sensors Terrestrial Mobile Mapping System (TMMS) Remote Sensing Ayman F. Habib 41 Ground Based Sensors: TMMS Absolute positioning using GPS Remote Sensing Ayman F. Habib 42 Ground Based Sensors: TMMS Stereo-Positioning
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Remote Sensing Ayman F. Habib 43 Ground Based Sensors: TMMS sign type height above pavement offset from road edge coordinate locations size of sign Remote Sensing Ayman F. Habib 44 Ground Based Sensors: TMMS Collecting inventories Collecting inventories On On- going maintenance Database integration Remote Sensing Ayman F. Habib 45 Ground Based Sensors Laser System Digital Camera Remote Sensing Ayman F. Habib 46 Aerial Platforms Aerial platforms are primarily stable wing aircraft , although helicopters are occasionally used. Aircrafts are often used to collect very detailed imagery. They facilitate the collection of data over virtually any portion of the Earth's surface at any time. Remote Sensing Ayman F. Habib 47 Terrestrial versus Aerial Platforms Remote Sensing Ayman F. Habib 48 Space Borne Platforms Remote sensing data can be captured by satellites. Because of their orbits, satellites permit repetitive coverage of the Earth's surface on a continuing basis.
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Remote Sensing Ayman F. Habib 49 Data Acquisition Systems: Remarks The choice of the remote sensing platform depends on: The application under consideration. Accessibility of the area under consideration. Amount of required details. The cost. Remote Sensing Ayman F. Habib 50 Remote Sensing Systems Passive versus Active Sensors Remote Sensing Ayman F. Habib 51 Passive Sensors A a Sensor Remote Sensing Ayman F. Habib 52 Passive Sensors Remote sensing systems which measure energy that is naturally available are called passive sensors . Passive sensors can only be used to detect energy which is naturally available. Optical imagery can be only captured during the time when the sun is illuminating the Earth. Thermal and infrared imagery can be detected day or night, as long as the amount of energy is large enough to be recorded. Remote Sensing Ayman F. Habib 53 Active Sensors Sensor A Emitted Wave a Reflected Wave Remote Sensing Ayman F. Habib 54 Active Sensors Active sensors provide their own energy source for illumination. The sensor emits radiation which is directed toward the target to be investigated. The radiation reflected from that target is detected and measured by the sensor. Advantages for active sensors include the ability to obtain measurements anytime, regardless of the time of day or season. Problems: More power is needed.
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Remote Sensing Ayman F. Habib 55 Active Sensor: LIDAR LI ght D etection A nd R anging Remote Sensing Ayman F. Habib 56 Active & Passive Sensors Active Sensor Passive Sensor Remote Sensing Ayman F. Habib 57 Active & Passive Sensors Remote Sensing Ayman F. Habib 58 Remote Sensing Applications Remote Sensing Ayman F. Habib 59 Remote Sensing Applications • Meteorology.
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