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Underground Object Classification Using Deep 3-D Convolutional Networks and Multiple Mirror Encoding for GPR Data
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DOI：10.1109/LGRS.2022.3148797.png)
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Abstract
En 中文
Ground-penetrating radar (GPR) is an effective tool for underground object detection, but its data interpretation remains a great challenge. In this letter, we propose a novel underground object classification algorithm using deep 3-D convolutional networks (C3D) and multiple mirror encoding (MME) for 3-D GPR data. Although deep learning technique has been applied to interpret the GPR data, most of the existing methods are based on GPR B-scans and have a relatively low accuracy since the reflections from various subsurface targets present similar hyperbolic patterns in B-scans. To improve the classification accuracy, we use 3-D GPR data as training data for C3D to capture the spatio-temporal features between parallel B-scans. Since 3-D GPR data including single object has different sizes in consideration of actual sizes of objects, they are rearranged by the MME method to enhance spatio-temporal features, as well as to satisfy the requirement of the network input. Experimental results demonstrate that the proposed method outperforms the state-of-the-art B-scan-based methods.
Keywords:
Three-dimensional displays
Feature extraction
Buried object detection
Plastic products
Mirrors
Convolution
Reflection
3-D convolutional networks (C3D)
3-D data
ground-penetrating radar (GPR)
multiple mirror encoding (MME)
underground object classification
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16.4
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1.0W
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