Chapter 8 Terms

Question 1

LiDAR

Answer 1

1. Uses sound waves to detect objects
2. Scans through vegetation via lasers
3. Collected by satellites, airplanes, ground instruments
4. Active sensor, not affected by cloud cover
5. Expensive to fund, but can request it via USGS

Question 2

Three Effects of LiDAR on planes to take into account

Answer 2

1. Yaw
2. Pitch
3. Roll

Question 3

Types of Resolutions

Answer 3

1. Spatial- identifies the minimum separation
2. Spectral- refers to the number of bands provided by the sensor
3. Radiometric- sensitivity of the sensor levels of image brightness
4. Temporal- observation frequency

Question 4

Geometric Correction

Answer 4

1. Image to image registration

2. Image to map rectification- rectifying image to a map (geo-referenced)