Optics and Precision Engineering, Volume. 31, Issue 6, 950(2023)
Lightweight vehicle detection using long-distance dependence and multi-scale representation
Figures & Tables(16)
Fig. 3. Structure of the Res2 module when feature maps subset are 4
Table 1. Different feature map subsets division methods
View tableView in ArticleTable 1. Different feature map subsets division methods
Setting #Params（M） FLOPs（G） org 7.3 17.1 7w×8s 7.2 16.2 13w×4s 7.3 16.6 13w×6s 7.6 18.6
Table 2. Experimental configuration and environment
View tableView in ArticleTable 2. Experimental configuration and environment
实验环境 具体配置信息 系统 Centos7 Python版本 3.8 GPU GTX 1080ti×2 Cuda版本 10.1 实验框架 Pytorch 1.7.1
Table 3. Experimental results of each networks on Puscal VOC vehicle dataset
View tableView in ArticleTable 3. Experimental results of each networks on Puscal VOC vehicle dataset
Model name Img size #Params/M FLOPs/G mAP（%） Pascal VOC mAP（%） MS COC Inference time/ms Yolov5s 640×640 7.3 17.1 82.5 62.3 6.1 Yolov5s-improved 640×640 8.1 17.3 84.6 64.0 6.9 Yolov4-tiny 640×640 6.4 17.4 70.3 54.3 3.9 Yolov3-tiny 640×640 8.9 13.3 70.2 51.5 3.7 Retinanet 1 000×600 36.2 122.2 84.4 61.2 52.8
Table 4. Ablation Experiments on Pascal VOC and MS COCO vehicle dataset
View tableView in ArticleTable 4. Ablation Experiments on Pascal VOC and MS COCO vehicle dataset
VANC3 Res2C3 FLOPs
/G
mAP/%
VOC
mAP
/%
COCO
Inference time/ms × × 17.1 82.5 62.3 6.1 √ × 17.7 83.2 62.8 6.2 √ √ 17.3 84.6 64.0 6.9
Table 5. Influence of VANC3 for mAP on different stages
View tableView in ArticleTable 5. Influence of VANC3 for mAP on different stages
Stage1 Stage2 Stage3 Stage4 mAP/% √ × × × 82.8 × √ × × 82.0 × × √ × 81.7 × × × √ 83.2
Table 6. Influence of Res2C3 residual module on mAP for more different structures
View tableView in ArticleTable 6. Influence of Res2C3 residual module on mAP for more different structures
Model Name Flops/G mAP/% Inference time/ms org 17.1 82.5 6.1 add K1 17.9 84.2 7.0 13w×6s 19.2 84.4 8.2
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Xiuping JING, Ying TIAN. Lightweight vehicle detection using long-distance dependence and multi-scale representation[J]. Optics and Precision Engineering, 2023, 31(6): 950
Paper Information
Category: Information Sciences
Received: Jun. 9, 2022
Accepted: --
Published Online: Apr. 4, 2023
The Author Email: TIAN Ying (astianying@126.com)
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