Abstract
Different from natural images, remote sensing images in complex backgrounds have the challenges of small object feature extraction with small size, few available features, and high localization accuracy requirements. Consequently, it is difficult to detect these small objects with mainstream object detection methods. To enhance the retention of small object feature details during feature extraction and characteristics enhancement, this paper improves the Cascade R-CNN algorithm to solve the above problems of small object detection. Res2Net was used to enhance feature representation and feature fusion to extract features with fine-grained and rich semantic information. PAFPN was used for learning high-resolution features with large perceptual fields to perceive contextual information from the area around the object for inference. Cascade R-CNN was used as a high-quality detector by continuously increasing the threshold of IOU. Experiments show that the detection performance of the method proposed in this paper is 4.3% higher than that of the current mainstream deep learning methods, which is significantly better than other mainstream detection methods.
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Acknowledgments
This research was supported by the National Natural Science Foundation of China (61903156), the Natural Science Foundation of Shandong Province for Key Project (ZR2020KF006), the Shandong Provincial Key Research and Development Program (2018JMRH0102), Science and technology project of Department of Industry and Information Technology of Shandong Province (SJG2103), the Science and Technology Program of University of Jinan (XKY1928, XKY2001, XKY1803).
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Li, Y., Han, SY., Xu, T., Yang, Xh., Lu, Q., Shen, Y. (2023). Cascade Detector Based on Multi-scale Features for Small Objects in Various Backgrounds of Remote Sensing. In: You, P., Li, H., Chen, Z. (eds) Proceedings of International Conference on Image, Vision and Intelligent Systems 2022 (ICIVIS 2022). ICIVIS 2022. Lecture Notes in Electrical Engineering, vol 1019. Springer, Singapore. https://doi.org/10.1007/978-981-99-0923-0_31
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DOI: https://doi.org/10.1007/978-981-99-0923-0_31
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