Rethinking Features-Fused-Pyramid-Neck for Object Detection

• URL: http://arxiv.org/abs/2505.12820v1
• Date: Mon, 19 May 2025 08:01:11 GMT
• Title: Rethinking Features-Fused-Pyramid-Neck for Object Detection
• Authors: Hulin Li,
• Abstract summary: This paper presents an independent hierarchy pyramid (IHP) architecture to evaluate the effectiveness of the features-unfusedpyramid-neck for multi-head detectors.<n>We also introduce soft nearest neighbor (SNI) with a weight downscaling factor to mitigate the impact of feature fusion at different hierarchies.<n>These advancements culminate in our secondary features alignment solution (SA) for real-time detection, achieving state-of-the-art results on Pascal and MS.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Multi-head detectors typically employ a features-fused-pyramid-neck for multi-scale detection and are widely adopted in the industry. However, this approach faces feature misalignment when representations from different hierarchical levels of the feature pyramid are forcibly fused point-to-point. To address this issue, we designed an independent hierarchy pyramid (IHP) architecture to evaluate the effectiveness of the features-unfused-pyramid-neck for multi-head detectors. Subsequently, we introduced soft nearest neighbor interpolation (SNI) with a weight downscaling factor to mitigate the impact of feature fusion at different hierarchies while preserving key textures. Furthermore, we present a features adaptive selection method for down sampling in extended spatial windows (ESD) to retain spatial features and enhance lightweight convolutional techniques (GSConvE). These advancements culminate in our secondary features alignment solution (SA) for real-time detection, achieving state-of-the-art results on Pascal VOC and MS COCO. Code will be released at https://github.com/AlanLi1997/rethinking-fpn. This paper has been accepted by ECCV2024 and published on Springer Nature.

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