the 
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ind 
and 
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es: 
and 
this 
OW 
  
2. Field Survey: 
-Detailed Survey in sample strips 
-Adjusted Interpretation 
-Selective Verification 
-Extrapolation 
3. Post-Interpretation: 
-Finalization of the maps and legends 
-Confection of final maps and legends 
-To establish Classification Criteria 
-Recommendation for Detailed Planning 
Digital Interpretation: 
The main objective of this research through 
remote sensing is to apply the Image 
Processing and Pattern Recognition 
Technologies in order to drive a Land 
Use/Land Cover Map. The Principal activities 
used in this interpretation are divided into the 
following steps: 
-Statement of the problems of the project 
area 
-DATA acquisition from DLR/INPE Brazil 
-Image Processing used: ERDAS Software, 
Ver. 7.5 
Preprocessing; 
Statistics, 
Geometric Correction, 
Elements Consideration 
-Display and Enhancement to assess image 
quality 
-Thematic information extraction: 
- Field work 
- Training sites 
- Unsupervised 
- Classification 
- Supervised Classification 
- Accuracy Assessment 
-Detect and solve the problems 
-Accept the interpretation, if the accuracy is 
more than 85% 
-Reject the interpretation if the accuracy is 
very low, and try again the whole system 
with more field information. 
RESULTS 
The results obtained in this research are 
divided into two parts: 
1. Results received through Visual Interpretation, 
2. Results obtained by Digital Analysis. 
Because of limited space, the results of visual and 
digital interpretation are given here in a tabular 
form (Table 1 & 2 and figure 1 & 2). 
Table: 1 Land Use/Land Cover Classification 
(Modified System of Anderson et all, 1976) 
  
  
  
  
  
  
  
  
Items Mapping 
Units 
-Agriculture/ 
Cultivated Land CLI, CL11 
C12. CL3, 
CLA, CLS, 
-Range/Pasture Land PI P2 
-Forest Land FO, FOI, 
FO2, FO3 
-Swampy Land S1 
-Poor Drained Land D 
-Barren Land CL6 
-Alluvial Land Ael 
  
For detailed description of each mapping unit, see 
the TR of CNPQ, project no*530507/93-5 (NV) 
Table. 2: Land Use/Land Cover Classification 
(Digital Interpretation- 
MAXCLAS) 
  
NO. Description 
  
Beach Sand/Sandy Areas 
Eroded Barren Land 
Poor Drained Wet Land 
Marshy Shrubs Land 
Dense Forest 
Eroded Barren with Pasture 
Cultivated/Pasture 
Cultivated Land 
. Moderately Dense Forest 
10. Slight Dense Forest and Pasture 
11. Barren Urban Land and Pasture 
12. Cultivated/forest 
13. Cultivated/Pasture/Forest 
14. Moderately Polluted Ocean Water 
15. Severely Polluted Water of Paraiba River 
16. Moderately to Severely Polluted Ocean 
Water 
17. Slight to Moderately Polluted Ocean Water 
18. Slightly Polluted Ocean Water 
19. Clean and / or Shallow Ocean Water 
O90 30 Ub e F9 rM 
  
701 
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B7. Vienna 1996