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BTS: a binary tree sampling strategy for object identification based on deep learning
DOI:10.1080/13658816.2021.1980883.png)
摘要
En 中文
Object-based convolutional neural networks (OCNNs) have achieved great performance in the field of land-cover and land-use classification. Studies have suggested that the generation of object convolutional positions (OCPs) largely determines the performance of OCNNs. Optimized distribution of OCPs facilitates the identification of segmented objects with irregular shapes. In this study, we propose a morphology-based binary tree sampling (BTS) method that provides a reasonable, effective, and robust strategy to generate evenly distributed OCPs. The proposed BTS algorithm consists of three major steps: 1) calculating the required number of OCPs for each object, 2) dividing a vector object into smaller sub-objects, and 3) generating OCPs based on the sub-objects. Taking the object identification in land-cover and land-use classification as a case study, we compare the proposed BTS algorithm with other competing methods. The results suggest that the BTS algorithm outperforms all other competing methods, as it yields more evenly distributed OCPs that contribute to better representation of objects, thus leading to higher object identification accuracy. Further experiments suggest that the efficiency of BTS can be improved when multi-thread technology is implemented.
Keyword:
Object identification
convolutional neural network
object convolutional position
deep learning
期刊
IF:
5.1
论文数:
2.7K
被引数:
9.3K
机构
引用论文
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Learning multiscale and deep representations for classifying remotely sensed imagery学习用于遥感图像分类的多尺度和深度表示
A patch-based convolutional neural network for remote sensing image classification
NEURAL NETWORKS
IF6.3

