Search Results for author: Nathan Vance

Found 11 papers, 1 papers with code

Measuring Domain Shifts using Deep Learning Remote Photoplethysmography Model Similarity

no code implementations12 Apr 2024 Nathan Vance, Patrick Flynn

Domain shift differences between training data for deep learning models and the deployment context can result in severe performance issues for models which fail to generalize.

Model Selection

Refining Remote Photoplethysmography Architectures using CKA and Empirical Methods

no code implementations9 Jan 2024 Nathan Vance, Patrick Flynn

Model architecture refinement is a challenging task in deep learning research fields such as remote photoplethysmography (rPPG).

Promoting Generalization in Cross-Dataset Remote Photoplethysmography

no code implementations24 May 2023 Nathan Vance, Jeremy Speth, Benjamin Sporrer, Patrick Flynn

Remote Photoplethysmography (rPPG), or the remote monitoring of a subject's heart rate using a camera, has seen a shift from handcrafted techniques to deep learning models.

Full-Body Cardiovascular Sensing with Remote Photoplethysmography

no code implementations16 Mar 2023 Lu Niu, Jeremy Speth, Nathan Vance, Ben Sporrer, Adam Czajka, Patrick Flynn

In this paper we explored the feasibility of rPPG from non-face body regions such as the arms, legs, and hands.

Heart rate estimation POS

Non-Contrastive Unsupervised Learning of Physiological Signals from Video

1 code implementation CVPR 2023 Jeremy Speth, Nathan Vance, Patrick Flynn, Adam Czajka

Given the limited inductive biases and impressive empirical results, the approach is theoretically capable of discovering other periodic signals from video, enabling multiple physiological measurements without the need for ground truth signals.

Hallucinated Heartbeats: Anomaly-Aware Remote Pulse Estimation

no code implementations11 Mar 2023 Jeremy Speth, Nathan Vance, Benjamin Sporrer, Lu Niu, Patrick Flynn, Adam Czajka

Extensive experimentation with eight research datasets (rPPG-specific: DDPM, CDDPM, PURE, UBFC, ARPM; deep fakes: DFDC; face presentation attack detection: HKBU-MARs; rPPG outlier: KITTI) show better accuracy of anomaly detection for deep learning models incorporating the proposed training (75. 8%), compared to models trained regularly (73. 7%) and to hand-crafted rPPG methods (52-62%).

Anomaly Detection Face Presentation Attack Detection

Digital and Physical-World Attacks on Remote Pulse Detection

no code implementations21 Oct 2021 Jeremy Speth, Nathan Vance, Patrick Flynn, Kevin W. Bowyer, Adam Czajka

Remote photoplethysmography (rPPG) is a technique for estimating blood volume changes from reflected light without the need for a contact sensor.

Face Presentation Attack Detection

Deception Detection and Remote Physiological Monitoring: A Dataset and Baseline Experimental Results

no code implementations11 Jun 2021 Jeremy Speth, Nathan Vance, Adam Czajka, Kevin W. Bowyer, Diane Wright, Patrick Flynn

Our application context is an interview scenario in which the interviewee attempts to deceive the interviewer on selected responses.

Deception Detection

Remote Pulse Estimation in the Presence of Face Masks

no code implementations11 Jan 2021 Jeremy Speth, Nathan Vance, Patrick Flynn, Kevin Bowyer, Adam Czajka

Remote photoplethysmography (rPPG), a family of techniques for monitoring blood volume changes, may be especially useful for widespread contactless health monitoring using face video from consumer-grade visible-light cameras.

Data Augmentation Heart rate estimation

An Online Reinforcement Learning Approach to Quality-Cost-Aware Task Allocation for Multi-Attribute Social Sensing

no code implementations11 Sep 2019 Yang Zhang, Daniel Zhang, Nathan Vance, Dong Wang

Social sensing has emerged as a new sensing paradigm where humans (or devices on their behalf) collectively report measurements about the physical world.

Attribute

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