CenterNet-Elite: A Small Object Detection Model for Driving Scenario

With the rapid development of deep learning networks, the accuracy of generic object detection has consistently improved. Nonetheless, small object detection tasks still face a range of challenges. On one hand, the limited pixel size of small objects severely constrains their visual features in imag...

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Main Authors: Lingling Wang, Xiang Li, Xiaoyan Chen, Bin Zhou
Format: Article
Language:English
Published: IEEE 2025-01-01
Series:IEEE Access
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Online Access:https://ieeexplore.ieee.org/document/10849529/
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author Lingling Wang
Xiang Li
Xiaoyan Chen
Bin Zhou
author_facet Lingling Wang
Xiang Li
Xiaoyan Chen
Bin Zhou
author_sort Lingling Wang
collection DOAJ
description With the rapid development of deep learning networks, the accuracy of generic object detection has consistently improved. Nonetheless, small object detection tasks still face a range of challenges. On one hand, the limited pixel size of small objects severely constrains their visual features in images, making them susceptible to distortion and difficult to distinguish from background noise. On the other hand, small objects often appear in complex scenarios with severe occlusion and dense arrangement, further increasing the complexity and difficulty of small object detection tasks. In this context, this study proposes a new model, CenterNet-Elite, to overcome these challenges. To address the issue of feature information loss resulting from multiple downsamplings during feature extraction for small objects, we introduce the spatial and channel reconstruction convolution (SCConv) into the bottleneck to reduce spatial and channel redundancy and enhance feature representation. In the meantime, we construct multiple short connections to integrate feature maps of the same scale during the downsampling and upsampling stages, thereby retaining critical shallow spatial information. We introduce a multi-scale pooling module, SPPCSPC, to address the challenge of significant variations in object scale. This module obtains receptive fields of different sizes through max-pooling layers of diverse sizes, adapting to changes in object scale on the feature maps. Furthermore, we introduce the content-aware reassembly of features (CARAFE) to replace deconvolution, refining the upsampling process to enhance the quality of feature maps. A series of comparative experiments and ablation studies demonstrate the effectiveness of our method in small object detection. The CenterNet-Elite achieves a 2.3% increase in the average precision on the large-scale small object detection dataset (SODA-D).
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spelling doaj-art-6d2d644e1c874b1e834a1bf976a2f0662025-01-31T00:01:55ZengIEEEIEEE Access2169-35362025-01-0113178681787710.1109/ACCESS.2025.353278610849529CenterNet-Elite: A Small Object Detection Model for Driving ScenarioLingling Wang0Xiang Li1https://orcid.org/0000-0002-5555-0734Xiaoyan Chen2Bin Zhou3School of Artificial Intelligence, Hubei Science and Technology College, Wuhan, ChinaSchool of Computer Science, China University of Geosciences, Wuhan, ChinaSchool of Artificial Intelligence, Hubei Science and Technology College, Wuhan, ChinaSchool of Artificial Intelligence, Hubei Science and Technology College, Wuhan, ChinaWith the rapid development of deep learning networks, the accuracy of generic object detection has consistently improved. Nonetheless, small object detection tasks still face a range of challenges. On one hand, the limited pixel size of small objects severely constrains their visual features in images, making them susceptible to distortion and difficult to distinguish from background noise. On the other hand, small objects often appear in complex scenarios with severe occlusion and dense arrangement, further increasing the complexity and difficulty of small object detection tasks. In this context, this study proposes a new model, CenterNet-Elite, to overcome these challenges. To address the issue of feature information loss resulting from multiple downsamplings during feature extraction for small objects, we introduce the spatial and channel reconstruction convolution (SCConv) into the bottleneck to reduce spatial and channel redundancy and enhance feature representation. In the meantime, we construct multiple short connections to integrate feature maps of the same scale during the downsampling and upsampling stages, thereby retaining critical shallow spatial information. We introduce a multi-scale pooling module, SPPCSPC, to address the challenge of significant variations in object scale. This module obtains receptive fields of different sizes through max-pooling layers of diverse sizes, adapting to changes in object scale on the feature maps. Furthermore, we introduce the content-aware reassembly of features (CARAFE) to replace deconvolution, refining the upsampling process to enhance the quality of feature maps. A series of comparative experiments and ablation studies demonstrate the effectiveness of our method in small object detection. The CenterNet-Elite achieves a 2.3% increase in the average precision on the large-scale small object detection dataset (SODA-D).https://ieeexplore.ieee.org/document/10849529/CARAFEobject detectionSCConvSPPCSPCSODA dataset
spellingShingle Lingling Wang
Xiang Li
Xiaoyan Chen
Bin Zhou
CenterNet-Elite: A Small Object Detection Model for Driving Scenario
IEEE Access
CARAFE
object detection
SCConv
SPPCSPC
SODA dataset
title CenterNet-Elite: A Small Object Detection Model for Driving Scenario
title_full CenterNet-Elite: A Small Object Detection Model for Driving Scenario
title_fullStr CenterNet-Elite: A Small Object Detection Model for Driving Scenario
title_full_unstemmed CenterNet-Elite: A Small Object Detection Model for Driving Scenario
title_short CenterNet-Elite: A Small Object Detection Model for Driving Scenario
title_sort centernet elite a small object detection model for driving scenario
topic CARAFE
object detection
SCConv
SPPCSPC
SODA dataset
url https://ieeexplore.ieee.org/document/10849529/
work_keys_str_mv AT linglingwang centerneteliteasmallobjectdetectionmodelfordrivingscenario
AT xiangli centerneteliteasmallobjectdetectionmodelfordrivingscenario
AT xiaoyanchen centerneteliteasmallobjectdetectionmodelfordrivingscenario
AT binzhou centerneteliteasmallobjectdetectionmodelfordrivingscenario