Results 41 to 50 of about 1,258 (163)
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
Pulse Rate Variability Analysis Using Remote Photoplethysmography Signals
Sensors, 2021 Pulse rate variability (PRV) refers to the change in the interval between pulses in the blood volume pulse (BVP) signal acquired using photoplethysmography (PPG). PRV is an indicator of the health status of an individual’s autonomic nervous system.
Su-Gyeong Yu +4 more
doaj +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
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
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
Non-Contact Heart Rate Measurement from Deteriorated Videos [PDF]
, 2023 Remote photoplethysmography (rPPG) offers a state-of-the-art, non-contact methodology for estimating human pulse by analyzing facial videos. Despite its potential, rPPG methods can be susceptible to various artifacts, such as noise, occlusions, and other
Casado, Constantino Álvarez +4 more
core +1 more source
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
Foods, 2021 Food experiences are not only driven by the food’s intrinsic properties, such as its taste, texture, and aroma, but also by extrinsic properties such as visual brand information and the consumers’ previous experiences with the foods.
Rene A. de Wijk +5 more
doaj +1 more source
[Retracted] DTFA‐Net: Dynamic and Texture Features Fusion Attention Network for Face Antispoofing
Complexity, Volume 2020, Issue 1, 2020., 2020 For face recognition systems, liveness detection can effectively avoid illegal fraud and improve the safety of face recognition systems. Common face attacks include photo printing and video replay attacks. This paper studied the differences between photos, videos, and real faces in static texture and motion information and proposed a living detection ...
Xin Cheng +6 more
wiley +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