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Paper · 2306.07730 · 2023

BeliefPPG: Uncertainty-aware Heart Rate Estimation from PPG signals via Belief Propagation

arXiv · PDF · Open in the Atlas

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We lifted 9 functions out of this paper's own repositories and ran 0 of them in a sandbox. "Ran" means the function executed on a synthesized input and returned a value. It is not a reproduction of the paper's results.

RepositoryRoleRan
eth-siplab/beliefppg canonical 0 of 9
FunctionStatusWhere it lives
add_gaussian_noise Not yet run eth-siplab/beliefppg/beliefppg/util/augmentations.py
code served (permissive licence) · get_code("c0811adb00c0c99b")
attention_block_1d Not yet run eth-siplab/beliefppg/beliefppg/model/belief_ppg.py
code served (permissive licence) · get_code("389a9916e9dbd1e1")
attention_up_and_concate Not yet run eth-siplab/beliefppg/beliefppg/model/belief_ppg.py
code served (permissive licence) · get_code("45d14789aa260103")
corrupt_one_representation Not yet run eth-siplab/beliefppg/beliefppg/util/augmentations.py
code served (permissive licence) · get_code("cf508bedec0404ae")
get_timedomain_backbone Not yet run eth-siplab/beliefppg/beliefppg/model/timedomain_backbone.py
code served (permissive licence) · get_code("4712dc30d2dfb621")
load_bami_1 Not yet run eth-siplab/beliefppg/beliefppg/datasets/file_reader.py
code served (permissive licence) · get_code("24de07d5261e9504")
load_dalia Not yet run eth-siplab/beliefppg/beliefppg/datasets/file_reader.py
code served (permissive licence) · get_code("3cdb7afa0c9abb7b")
load_wesad Not yet run eth-siplab/beliefppg/beliefppg/datasets/file_reader.py
code served (permissive licence) · get_code("ad1093aee3f0d715")
prepare_session_labels Not yet run eth-siplab/beliefppg/beliefppg/datasets/pipeline_generator.py
code served (permissive licence) · get_code("259bd59c4dc083e7")

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Abstract

We present a novel learning-based method that achieves state-of-the-art performance on several heart rate estimation benchmarks extracted from photoplethysmography signals (PPG). We consider the evolution of the heart rate in the context of a discrete-time stochastic process that we represent as a hidden Markov model. We derive a distribution over possible heart rate values for a given PPG signal window through a trained neural network. Using belief propagation, we incorporate the statistical distribution of heart rate changes to refine these estimates in a temporal context. From this, we obtain a quantized probability distribution over the range of possible heart rate values that captures a meaningful and well-calibrated estimate of the inherent predictive uncertainty. We show the robustness of our method on eight public datasets with three different cross-validation experiments.

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