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interimage:examples:rule_based_classification [2010/06/17 14:01] tkorting created |
interimage:examples:rule_based_classification [2010/09/14 11:42] (current) tkorting |
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| This example shows how to perform a single classification of pools and roofs through rule-based classification. | This example shows how to perform a single classification of pools and roofs through rule-based classification. | ||
| - | This project is called "rule_based_classification" and uses the Tow Down operators //TerraAIDA_Baatz_Segmenter// and //Dummy Top Down//, and the Bottom Up operator //Generic Bottom Up//. | + | This project is called "Rule_based_classification" and uses the Top Down operators //TA_Baatz_Segmenter// and //Dummy Top Down//, and the Bottom Up operator //Generic Bottom Up//. |
| - | The InterIMAGE interpretation project can be downloaded here: {{wiki:thales:pools_and_roofs.zip|?????}} | + | ===== Download ===== |
| + | {{:interimage:examples:ta_interimage_examples_rule_based_classification.zip}} | ||
| + | ===== Step-by-step ===== | ||
| - | After creating the InterIMAGE project, we should inserted three nodes, namely //pools//, //roofs// and //background//. All nodes will have the top down operator TerraAIDA_Baatz_Segmenter, as showed in the figure below. | + | Start InterIMAGE, click on //File//, //New Project//, and type the fields according to the following: |
| - | {{wiki:thales:pools_parameters.png?400|}} | + | {{:interimage:examples:new_project_rule_based_classification.png?400}} |
| - | To classify, we can use the attribute //ratio// for band 1, as the following: | + | Now insert three nodes, namely //pools//, //roofs// and //background//. All these three nodes will have the Top Down operator //TA_Baatz_Segmenter//, as shown below. |
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| + | {{:interimage:examples:nodes_rule_based_classification.png?600}} | ||
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| + | All nodes, including node //Scene//, will have the Bottom Up operator //Generic Bottom Up//, with the following rule: | ||
| + | |||
| + | {{:interimage:examples:rule_based_classification_bottomups.png?400}} | ||
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| + | To classify, one can use the attribute //ratio// for band 1, as follows: | ||
| * //pools// | * //pools// | ||
| Line 22: | Line 32: | ||
| * ratio(band 1) >= 0.3 AND ratio(band 1) < = 0.4 | * ratio(band 1) >= 0.3 AND ratio(band 1) < = 0.4 | ||
| - | The next figure shows the rule for node "roofs". | + | Then one inserts these rules in the three nodes, by clicking in //TopDown Decision Rule//. Note: Select the option **No Merge**, as the //Lower-level Rule// for all Top Down nodes. |
| - | {{wiki:thales:roofs_rule.png?400|}} | + | {{:interimage:examples:rule_based_classification_background_rules.png?400}} |
| - | After inserting the rules and starting the project, the resultant classification will show as the following: | + | After inserting the rules and starting the project, the resulting classification will look as follows: |
| - | {{wiki:thales:classification.png?400|}} | + | {{:interimage:examples:result_rule_based_classification.png?600}} |
