Rethinking Feature Backbone Fine-tuning for Remote Sensing Object Detection

• URL: http://arxiv.org/abs/2407.15143v1
• Date: Sun, 21 Jul 2024 12:32:00 GMT
• Title: Rethinking Feature Backbone Fine-tuning for Remote Sensing Object Detection
• Authors: Yechan Kim, JongHyun Park, SooYeon Kim, Moongu Jeon,
• Abstract summary: We propose DBF (Dynamic Backbone Freezing) for feature backbone fine-tuning on remote sensing object detection. Our method aims to handle the dilemma of whether the backbone should extract low-level generic features or possess specific knowledge of the remote sensing domain. Our approach enables more accurate model learning while substantially reducing computational costs.
• Score: 10.896464615994494
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Recently, numerous methods have achieved impressive performance in remote sensing object detection, relying on convolution or transformer architectures. Such detectors typically have a feature backbone to extract useful features from raw input images. For the remote sensing domain, a common practice among current detectors is to initialize the backbone with pre-training on ImageNet consisting of natural scenes. Fine-tuning the backbone is typically required to generate features suitable for remote-sensing images. However, this could hinder the extraction of basic visual features in long-term training, thus restricting performance improvement. To mitigate this issue, we propose a novel method named DBF (Dynamic Backbone Freezing) for feature backbone fine-tuning on remote sensing object detection. Our method aims to handle the dilemma of whether the backbone should extract low-level generic features or possess specific knowledge of the remote sensing domain, by introducing a module called 'Freezing Scheduler' to dynamically manage the update of backbone features during training. Extensive experiments on DOTA and DIOR-R show that our approach enables more accurate model learning while substantially reducing computational costs. Our method can be seamlessly adopted without additional effort due to its straightforward design.

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