Hybrid classification in Remote Sensing

Hybrid classification refers to the process of combining multiple classification methods to improve the accuracy and efficiency of image classification. This approach combines the strengths of different classification methods, such as decision trees, support vector machines, and neural networks, to create a more robust and accurate classification algorithm.

The process of hybrid classification typically begins with the selection of the classification methods to be combined. The different methods are then trained on the same labeled dataset, and the results are combined to create a final classification. This can be done by combining the results of different methods through a voting mechanism, where the majority of the class labels assigned by the different methods is used as the final classification.

Another approach is to use multiple classification methods in a sequence, where each method is applied to the image, and the output of one method is used as input for the next method. This can be done by using a decision tree method to classify the image, and then using a support vector machine to refine the classification.

Hybrid classification is useful when the image data is complex or difficult to classify, and when a single classification method may not be sufficient to classify the image accurately. By combining multiple methods, the hybrid classification algorithm is able to take advantage of the strengths of different methods to improve the accuracy and efficiency of the classification process.

Hybrid classification can also be used in combination with other classification methods such as interactive preliminary classification, representative subscene classification or self-classification of training data set to improve the classification accuracy.

Overall, hybrid classification is a powerful method for image classification, as it combines the strengths of different classification methods to provide a more accurate and efficient method for classifying complex or difficult image data.

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