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English(EN) Cross-Dataset Transfer and Reliability of Explainable Artificial Intelligence for RhythmFormer Remote Photoplethysmography

心率估计模型XAI解释缺乏直接性能相关性

研究人员调查了可解释人工智能(XAI)方法应用于RhythmFormer时的可靠性和跨数据集迁移能力。RhythmFormer是一种用于远程光电容积脉搏波描记法(rPPG)的模型,可从面部视频中估计心血管脉搏。该研究评估了多种XAI技术,包括注意力图和显著性引导的忠实度系数,应用于NCKU-rPPG和UBFC-rPPG等不同数据集。研究结果表明,虽然一些XAI方法,特别是‘Beyond Intuition’,显示出良好的皮肤覆盖率和忠实度,但这些指标与模型在估计心率方面的实际性能并不总是相关。研究表明,归因于皮肤区域并不能保证准确的rPPG估计,XAI解释主要揭示了模型关注的焦点,而不是它如何忠实地表示潜在的生理信号。 AI

影响 解释了当前XAI方法可能无法可靠地指示生理信号估计模型的性能,表明需要更稳健的评估技术。

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心率估计模型XAI解释缺乏直接性能相关性

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报道来源 [1]

  1. arXiv cs.AI TIER_1 English(EN) · Louis Chen, Torbj\"orn E. M. Nordling ·

    用于 RhythmFormer 远程光电容积脉搏波描记法的可解释人工智能的跨数据集迁移与可靠性

    arXiv:2609.03663v1 Announce Type: cross Abstract: Background. Remote photoplethysmography estimates the cardiovascular pulse from facial video, and its explanations have rested on inspecting heatmaps rather than on quantitative evidence about where a model reads it. We quantified…