Flashcard Set Preview
| Side A | Side B | ||
| 1 |
What are the stages in the data capture project
|
planning, preparation , obtain data, editing, and evaluation
|
|
| 2 |
What are the three types of data
|
Base Data, derived data, interpreted data
|
|
| 3 |
Base DataDerived datainterpretation data
|
primary source data with little modificationComes from base data through processinga combo...
|
|
| 4 |
Key principlesFundamental trade off between
|
Clear plan, adequate resources, appropriate funding and sufficient timeQuality, speed and price
|
|
| 5 |
two different strategies resource options
|
incremental or all at onceeither in house or external agency
|
|
| 6 |
how do you acquire data
|
by creating it, buying it, not in a usable form
|
|
| 7 |
preProcessing
|
done before general use: projecting and transforming data, edge matching, generalization, rubber...
|
|
| 8 |
Edge matchingRubber sheeting
|
when data has been digitized by map sheetuses a number of control points to move from a distorted...
|
|
| 9 |
Generalizing
|
to make data less complex by reclassifying to more general valuesfor example: douglas fir and...
|
|
| 10 |
What are three generalization processes?
|
-replace pair of coordinates with average position-take out a point that does not change the...
|
|
| 11 |
Vector to rasterRaster to vector
|
the raster cell center closest gets that attributecreate a point at the center of the cell...
|
|
| 12 |
two ways vector can be rebuilt
|
using four-connected or 8-connected algorithms
|
|
| 13 |
The data stream
|
the collection, processing, analysis and production
|
|
| 14 |
Primary and secondary data
|
two ways of classifying dataraster:-digital remote sensing, digital aerial photographs-scanned...
|
|
| 15 |
how to collect vector datacollecting attribute data
|
surveying: determining location of objects by angle and distance measurements from known locationstyping...
|
No comments yet! Be the first to add a comment below!
Please login to post comments.
After login, we will forward you back to this flashcard.