Pixel-oriented analysis. Object-oriented analysis. Remote Sensing classifications. Pixel-oriented limitations. Problems when dealing with rich information. Inappropriate scale of work. Inaccurate with elements of similar spectral behaviour (ex.: habitats). Salt and pepper effect.
Remote Sensing classifications
Problems when dealing with
scale of work
Inaccurate with elements of similar spectral behaviour (ex.: habitats)
Salt and pepper
Which kind of structure can
be seen in here?
Important semantic information, necessary to interpret an image, is not represented in single
PIXELS, but in meaningful OBJECTS ,
and their mutual relationships
shape & size
Allows scale definition
Multi source data fusion
multispectral image (2.8 m, color)
Pancromatic image (0.7m, b/w)
Objective: To study an urban settlement in Madrid (Spain)
by means of remote sensing .
Multi-source data fusion
Correct identification of roads, paths, houses, back-gardens, pools...