An Efficient Aerial Image Detection with Variable Receptive Fields

• URL: http://arxiv.org/abs/2504.15165v1
• Date: Mon, 21 Apr 2025 15:16:13 GMT
• Title: An Efficient Aerial Image Detection with Variable Receptive Fields
• Authors: Liu Wenbin,
• Abstract summary: We propose a transformer-based detector incorporating three key components.<n>VRF-DETR achieves 51.4% mAPtextsubscript50 and 31.8% mAPtextsubscript50:95 with only 13.5M parameters.
• Score: 0.0
• License: http://creativecommons.org/publicdomain/zero/1.0/
• Abstract: Aerial object detection using unmanned aerial vehicles (UAVs) faces critical challenges including sub-10px targets, dense occlusions, and stringent computational constraints. Existing detectors struggle to balance accuracy and efficiency due to rigid receptive fields and redundant architectures. To address these limitations, we propose Variable Receptive Field DETR (VRF-DETR), a transformer-based detector incorporating three key components: 1) Multi-Scale Context Fusion (MSCF) module that dynamically recalibrates features through adaptive spatial attention and gated multi-scale fusion, 2) Gated Convolution (GConv) layer enabling parameter-efficient local-context modeling via depthwise separable operations and dynamic gating, and 3) Gated Multi-scale Fusion (GMCF) Bottleneck that hierarchically disentangles occluded objects through cascaded global-local interactions. Experiments on VisDrone2019 demonstrate VRF-DETR achieves 51.4\% mAP\textsubscript{50} and 31.8\% mAP\textsubscript{50:95} with only 13.5M parameters. This work establishes a new efficiency-accuracy Pareto frontier for UAV-based detection tasks.

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