Development of an algorithm to analyze cartographic features extraction methods in digital images

• Published in: IOP conference series. Earth and environmental science 2014-01, Vol.17 (1), p.12219-5
• Main Authors: Cardim, Guilherme Pina, da Silva, Erivaldo Antonio
• Format: Article
• Language: English
• Subjects: Algorithms; Cartography; Completeness; Digital imaging; Extraction; Feature extraction; Mathematical analysis; Statistical analysis; Statistics
• ISSN: 1755-1315; 1755-1307; 1755-1315
• DOI: 10.1088/1755-1315/17/1/012219

The algorithm creates a buffer area around the cartographic features of interest in one of the images and compare it with the other one. During the comparison, the algorithm calculates the number of equals and different points and uses it to calculate the statistical values of the analysis. One calculated statistical value is the correctness, which shows the user the percentage of points that were correctly extracted. Another one is the completeness that shows the percentage of points that really belong to the interest feature. And the third value shows the idea of quality obtained by the extraction method, since that in order to calculate the quality the algorithm uses the correctness and completeness previously calculated. All the performed tests using this algorithm were possible to use the statistical values calculated to represent quantitatively the quality obtained by the extraction method executed. So, it is possible to say that the developed algorithm can be used to analyze extraction methods of cartographic features of interest, since that the results obtained were promising.