Decision trees for computer-aided detection and classification (CAD/CAC) of mines in sidescan sonar imagery
Decision trees for computer-aided detection and classification (CAD/CAC) of mines in sidescan sonar imagery
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用于侧扫声纳图像中地雷计算机辅助检测和分类 (CAD/CAC) 的决策树
DOI:
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发表时间:
2002
期刊:
影响因子:
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通讯作者:
V. Myers
中科院分区:
文献类型:
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作者:
V. Myers
The intuitive training process and easy interpretability make decision trees an attractive solution for computer-aided detection and classification (CAD/CAC) of underwater mines in sidescan sonar imagery. Using real sonar data, performance of the decision tree induction process is evaluated using different segmentation methods, that is separating the image into highlight, shadow and background regions. The effect of towfish pitch correction is also investigated. It is argued that the impact of the chosen segmentation algorithm on classification accuracy is minimal in the case of target/clutter discrimination but becomes more important when carrying out target classification, i.e. choosing between cylinder, manta and sphere classes. The induction process is then extended to account for changing prior class probabilities and misclassification costs. Various changes are made with consequences ranging from high sensitivity to relative insensitivity to costs, and a case is made for the use of ROC (Receiver Operating Characteristic) analysis when comparing CAD/CAC methods. Finally, the progression from detection to classification stages is examined.