RhythmFormer: Extracting patterned rPPG signals based on periodic sparse attention

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Bochao Zou, Zizheng Guo, Jiansheng Chen, Junbao Zhuo, Weiran Huang, Huimin Ma

Published: 2025, Last Modified: 25 Jan 2026Pattern Recognit. 2025EveryoneRevisionsBibTeXCC BY-SA 4.0
Abstract: Highlights•Leveraging periodicity-induced sparsity to address transformers’ quadratic complexity.•Plug-and-play fusion stem significantly enhances the performance of existing methods.•Extensive experiments and visualizations demonstrate the effectiveness.