[1]ZHANG Guoyin,WANG Chuanbo,GAO Wei.Pedestrian multiobject tracking algorithm with anti-occlusion[J].CAAI Transactions on Intelligent Systems,2024,19(5):1248-1256.[doi:10.11992/tis.202307002]
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CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume:
19
Number of periods:
2024 5
Page number:
1248-1256
Column:
学术论文—智能系统
Public date:
2024-09-05
- Title:
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Pedestrian multiobject tracking algorithm with anti-occlusion
- Author(s):
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ZHANG Guoyin; WANG Chuanbo; GAO Wei
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College of Computer Science and Technology, Harbin Engineering University, Harbin 150001, China
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- Keywords:
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computer vision; pedestrian tracking; target detection; re-identification; association algorithm; anti-occlusion; self-attention; feature extraction
- CLC:
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TP391
- DOI:
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10.11992/tis.202307002
- Abstract:
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A multiobject tracking algorithm with anti-occlusion (referred to as AOMOT), which is based on the FairMOT framework, is proposed to improve the accuracy of tracking systems in crowded pedestrian scenes. First, the lightweight balance module decouples semantic information at different levels to minimize semantic conflicts between detection and recognition tasks and decrease the impact of performance improvement in re-identification tasks. Second, the self-attention structure is adopted to extract pedestrian appearance features and improve the discrimination of intra-class features under local windows. The matching consistency of pedestrian identity information is enhanced, and frequent switching of identity signs is reduced. Finally, the identity association algorithm is optimized to mine occluded objects in low-confidence targets, reincorporate them into the target identity association, and update their recognition features. Experimental results show that, compared with the original model in the MOT17 dataset, the improved model enhances the higher-order tracking accuracy by 1.5 percentage points, improves identity F1 score by 3 percentage points, and reduces identity switching by 32%.