1. Estimating feature extraction changes of Berkelah Forest, Malaysia from multisensor remote sensing data using and object-based technique
- Author
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Zulkiflee Abd Latif, Yousif A. Hussin, Syaza Rozali, Alan Blackburn, Biswajeet Pradhan, Nor Aizam Adnan, Department of Natural Resources, UT-I-ITC-FORAGES, and Faculty of Geo-Information Science and Earth Observation
- Subjects
010504 meteorology & atmospheric sciences ,Computer science ,Geography, Planning and Development ,Feature extraction ,0211 other engineering and technologies ,22/2 OA procedure ,02 engineering and technology ,Object (computer science) ,Geological & Geomatics Engineering ,01 natural sciences ,Random forest ,Support vector machine ,Lidar ,Feature (computer vision) ,Remote sensing (archaeology) ,ITC-ISI-JOURNAL-ARTICLE ,0909 Geomatic Engineering ,Segmentation ,sense organs ,021101 geological & geomatics engineering ,0105 earth and related environmental sciences ,Water Science and Technology ,Remote sensing - Abstract
The study involves an object-based segmentation method to extract feature changes in tropical rainforest cover using Landsat image and airborne LiDAR (ALS). Disturbance event that are represents the changes are examined by the classification of multisensor data; that is a highly accurate ALS with different resolutions of multispectral Landsat image. Disturbance Index (DI) derived from Tasseled Cap Transformation, Normalized Difference Vegetation Index (NDVI), and the ALS height are the variables for object-based segmentation process. The classification is categorized into two classes; disturbed and non-disturbed forest cover using Nearest Neighbor (NN), Random Forest (RF) and Support Vector Machine (SVM). The overall accuracy ranging from 88% to 96% and kappa ranging from 0.79 to 0.91. Mcnemar’s test p-value (
- Published
- 2022