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1.长春理工大学 计算机科学技术学院, 吉林 长春 130022
2.长春理工大学 吉林省网络与信息安全重点实验室, 吉林 长春 130022
3.长春理工大学 信息化中心, 吉林 长春 130022
Received:29 July 2026,
Revised:2026-08-16,
Published:05 September 2026
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LI Xusheng, MA Xiahong, JIANG Zhiang, et al. A spatiotemporal consistency-based robust fusion method for collaborative perception[J]. Chinese Journal of Liquid Crystals and Displays, 2026, 41(9): 1325-1338.
LI Xusheng, MA Xiahong, JIANG Zhiang, et al. A spatiotemporal consistency-based robust fusion method for collaborative perception[J]. Chinese Journal of Liquid Crystals and Displays, 2026, 41(9): 1325-1338. DOI: 10.3724/CJLCD.2026-0144. CSTR: 32172.14.CJLCD.2026-0144.
针对车联网协同感知中局部证据质量下降,影响协同融合结果稳定性与可用性的问题,本文将融合过程建模为局部感知证据可靠性估计,提出一种基于时空一致性的协同感知鲁棒融合方法(STC-RF)。首先,利用目标存在热图构建低维语义证据;随后,综合跨车空间一致性、历史占用连续性和负向证据冲突,评估鸟瞰视图(BEV)栅格级局部证据可靠性,并将其作为偏置注入注意力中间融合过程,以连续调节不同协作者在各空间位置的融合贡献;进一步采用保守式历史占用更新,使历史时间参照持续参与融合过程,降低局部证据波动对协同结果时间连续性的影响。实验结果表明,在背景化证据退化条件下,所提方法将AP@0.7由82.09%提高至 86.20%,SSR由8.21%降至5.53%,CFNR 由0.90%降至0.72%,说明该方法能够提升非理想协同感知条件下的融合稳定性。
To address the issue of declining local evidence quality in Internet of Vehicles collaborative perception, which affects the stability and usability of collaborative fusion results, the fusion process is modeled as local perception evidence reliability estimation, and a spatiotemporal consistency-based robust fusion method(STC-RF) is proposed for collaborative perception. First, low-dimensional semantic evidence is constructed using a target existence heatmap. Subsequently, by comprehensively considering cross-vehicle spatial consistency, historical occupancy continuity, and negative evidence conflict, Bird’s-Eye View(BEV) grid-level local evidence reliability is generated and injected as a bias into the intermediate fusion of attention to continuously adjust the fusion contributions of different collaborators at various spatial positions. Furthermore, a conservative historical occupancy update is adopted to ensure that the historical time reference continuously participates in the fusion process, reducing the impact of local evidence fluctuations on the temporal continuity of the collaborative results. Experimental results demonstrate that under the condition of background evidence degradation, the proposed method improves AP@0.7 from 82.09% to 86.20%, reduces SSR from 8.21% to 5.53%, and decreases CFNR from 0.90% to 0.72%, indicating that the method enhances the fusion stability under non-ideal collaborative perception conditions.
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