Advancing Generalizable Remote Physiological Measurement through the Integration of Explicit and Implicit Prior Knowledge

• URL: http://arxiv.org/abs/2403.06947v1
• Date: Mon, 11 Mar 2024 17:33:25 GMT
• Title: Advancing Generalizable Remote Physiological Measurement through the Integration of Explicit and Implicit Prior Knowledge
• Authors: Yuting Zhang, Hao Lu, Xin Liu, Yingcong Chen, Kaishun Wu
• Abstract summary: Remote photoplethysmography (r) is a promising technology that captures physiological signals from face videos. Most existing methods have overlooked the prior knowledge of r, resulting in poor generalization ability. We propose a novel framework that simultaneously utilizes explicit and implicit prior knowledge methods in the r task.
• Score: 30.31568804817144
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Remote photoplethysmography (rPPG) is a promising technology that captures physiological signals from face videos, with potential applications in medical health, emotional computing, and biosecurity recognition. The demand for rPPG tasks has expanded from demonstrating good performance on intra-dataset testing to cross-dataset testing (i.e., domain generalization). However, most existing methods have overlooked the prior knowledge of rPPG, resulting in poor generalization ability. In this paper, we propose a novel framework that simultaneously utilizes explicit and implicit prior knowledge in the rPPG task. Specifically, we systematically analyze the causes of noise sources (e.g., different camera, lighting, skin types, and movement) across different domains and incorporate these prior knowledge into the network. Additionally, we leverage a two-branch network to disentangle the physiological feature distribution from noises through implicit label correlation. Our extensive experiments demonstrate that the proposed method not only outperforms state-of-the-art methods on RGB cross-dataset evaluation but also generalizes well from RGB datasets to NIR datasets. The code is available at https://github.com/keke-nice/Greip.

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