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Towards Face Presentation Attack Detection Based on Residual Color Texture Representation
Security and Communication Networks, Volume 2021, Issue 1, 2021., 2021 Most existing face authentication systems have limitations when facing the challenge raised by presentation attacks, which probably leads to some dangerous activities when using facial unlocking for smart device, facial access to control system, and face scan payment.
Yuting Du +4 more
wiley +1 more source
Prediction of Heart Wellness Based on the Analysis of Skin Color
Engineering Proceedings, 2023 Heart rate monitoring is crucial in scientific and technical fields as it provides essential information about cardiovascular health, exercise performance, and stress levels, enabling early detection of and intervention for potential cardiac ...
Kavya Sree Kammari +2 more
doaj +1 more source
Heart rate estimation by leveraging static and dynamic region weights [PDF]
, 2023 As the demand for long-term health evaluation grows, researchers show increased interest in remote photoplethysmography studies. However, conventional methods are vulnerable to noise interference caused by non-rigid facial movements (facial expression ...
Feng, Xiaoyi +5 more
core +1 more source
Journal of Sensors, Volume 2021, Issue 1, 2021., 2021 Remote photoplethysmography (rPPG) can be used for noncontact and continuous measurement of the heart rate (HR). Currently, the main factors affecting the accuracy and robustness of rPPG‐based HR measurement methods are the subject’s skin tone, body movement, exercise recovery, and variable or inadequate illumination.
Boyuan Zhang +6 more
wiley +1 more source
Video pulse rate variability analysis in stationary and motion conditions [PDF]
, 2018 Background: In the last few years, some studies have measured heart rate (HR) or heart rate variability (HRV) parameters using a video camera. This technique focuses on the measurement of the small changes in skin colour caused by blood perfusion.
Melchor Rodríguez, Angel +1 more
core +3 more sources
Spatial analysis of photoplethysmography in cutaneous squamous cell carcinoma [PDF]
, 2022 The primary treatment of the common malignancy squamous cell carcinoma is surgical removal. In this process, sufficient tissue removal is balanced against unnecessary mutilation.
Hager, Henrik +3 more
core +1 more source
Liveness Detection for 3D Face Mask Attacks. [PDF]
, 2021 The serviceable and convenient nature of the Face Recognition System (FRS) makes it a preferred way for access control and authentication for a wide range of application areas, from biometric passport, surveillance system, health care, law enforcement ...
Katwal,Rupak
core
Exploring remote photoplethysmography signals for deepfake detection in facial videos [PDF]
, 2023 . With the advent of deep learning-based facial forgeries, also called "deepfakes", the feld of accurately detecting forged videos has become a quickly growing area of research.
Luukkonen, A. (Antti)
core
Scientific Reports, 2023 Flap loss through limited perfusion remains a major complication in reconstructive surgery. Continuous monitoring of perfusion will facilitate early detection of insufficient perfusion. Remote or imaging photoplethysmography (rPPG/iPPG) as a non-contact,
Sebastian P. Schraven +9 more
doaj +1 more source
Efficient Spatiotemporal Attention Network for Remote Heart Rate Variability Analysis
Sensors, 2022 Studies have shown that ordinary color cameras can detect the subtle color changes of the skin caused by the heartbeat cycle. Therefore, cameras can be used to remotely monitor the pulse in a non-contact manner.
Hailan Kuang +3 more
doaj +1 more source