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Resistance thermometry provides a time-tested method for taking temperature measurements that has been painstakingly developed over the last century. However, fundamental limits to resistance-based approaches along with a desire to reduce…

Optics · Physics 2018-01-09 Nikolai Klimov , Thomas Purdy , Zeeshan Ahmed

Detecting electronic hot spots is important for understanding the heat dissipation and thermal management of electronic and semiconductor devices. Optical thermoreflective imaging is being used to perform precise temporal and spatial…

In an effort to make biosignal integration more accessible to explore for more HCI researchers, this paper presents our investigation of how well a standard, near ubiquitous webcam can support remote sensing of heart rate and respiration…

Human-Computer Interaction · Computer Science 2023-04-24 Christoph Tremmel , Indu Bodala , M. C. Schraefel

Thermal images are mainly used to detect the presence of people at night or in bad lighting conditions, but perform poorly at daytime. To solve this problem, most state-of-the-art techniques employ a fusion network that uses features from…

Computer Vision and Pattern Recognition · Computer Science 2019-04-16 Debasmita Ghose , Shasvat Mukeshkumar Desai , Sneha Bhattacharya , Deep Chakraborty , Madalina Fiterau , Tauhidur Rahman

Low-cost thermal cameras are inaccurate (usually $\pm 3^\circ C$) and have space-variant nonuniformity across their detector. Both inaccuracy and nonuniformity are dependent on the ambient temperature of the camera. The goal of this work…

Computer Vision and Pattern Recognition · Computer Science 2024-09-10 Navot Oz , Nir Sochen , David Mendelovich , Iftach Klapp

We propose a new robotic cover prototype that achieves thermal display while also being soft. We focus on the thermal cue because previous human studies have identified it as part of the touch pleasantness. The robotic cover surface can be…

Human-Computer Interaction · Computer Science 2021-05-11 Yukiko Osawa , Abderrahmane Kheddar

Recently, remote respiratory rate measurement techniques gained much attention as they were developed to overcome the limitations of device-based classical methods and manual counting. Many approaches for RR extraction from the video stream…

Computer Vision and Pattern Recognition · Computer Science 2022-11-22 Petro Franchuk , Tetiana Yezerska

With the advent of smartphone indirect ophthalmoscopy, teleophthalmology - the use of specialist ophthalmology assets at a distance from the patient - has experienced a breakthrough, promising enormous benefits especially for healthcare in…

Computer Vision and Pattern Recognition · Computer Science 2019-03-08 Chris von Csefalvay

Dye attenuation, or photometric imaging, is an optical technique commonly used in fluid dynamics to measure tracer concentration fields and fluid thicknesses under the assumption that the motion of the dye is representative of the fluid…

Fluid Dynamics · Physics 2024-11-04 George T. Fortune , Merlin A. Etzold , Julien R. Landel , Stuart B. Dalziel

ABSTRACT: Temperature monitoring is extremely im-portant during thermotherapy. Fiber-optic temperature sensors are preferred because of their flexibility and im-munity to electromagnetic interference. Although many types of fiber-optic…

Medical Physics · Physics 2020-02-19 Paris L. Franz , Hui Wang

The inspection of wind turbine blades (WTBs) is crucial for ensuring their structural integrity and operational efficiency. Traditional inspection methods can be dangerous and inefficient, prompting the use of unmanned aerial vehicles…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Serhii Svystun , Oleksandr Melnychenko , Pavlo Radiuk , Oleg Savenko , Anatoliy Sachenko , Andrii Lysyi

Thermal conductivity and interfacial thermal conductance play crucial roles in the design of engineering systems where temperature and thermal stress are of concerns. To date, a variety of measurement techniques are available for both bulk…

Materials Science · Physics 2016-12-09 Dongliang Zhao , Xin Qian , Xiaokun Gu , Saad Ayub Jajja , Ronggui Yang

Purpose: To evaluate the efficacy of a recently proposed method for characterizing tear film dynamics using non-invasive high speed videokeratoscopy in assessing the loss of homeostasis of tear film. Methods: Thirty subjects, from a…

Medical Physics · Physics 2019-02-14 Clara Llorens-Quintana , Dorota H. Szczesna-Iskander , D. Robert Iskander

Heart rate (HR) is an essential clinical measure for the assessment of cardiorespiratory instability. Since communities of color are disproportionately affected by both COVID-19 and cardiovascular disease, there is a pressing need to deploy…

Image and Video Processing · Electrical Eng. & Systems 2020-12-10 Pradyumna Chari , Krish Kabra , Doruk Karinca , Soumyarup Lahiri , Diplav Srivastava , Kimaya Kulkarni , Tianyuan Chen , Maxime Cannesson , Laleh Jalilian , Achuta Kadambi

Most pictures shared online are accompanied by temporal metadata (i.e., the day and time they were taken), which makes it possible to associate an image content with real-world events. Maliciously manipulating this metadata can convey a…

Computer Vision and Pattern Recognition · Computer Science 2022-03-14 Rafael Padilha , Tawfiq Salem , Scott Workman , Fernanda A. Andaló , Anderson Rocha , Nathan Jacobs

Blood related invasive pathological investigations play a major role in diagnosis of diseases. But in India and other third world countries there are no enough pathological infrastructures for medical diagnosis. Moreover, most of the remote…

Computers and Society · Computer Science 2013-12-04 Pramit Ghosh , Debotosh Bhattacharjee , Mita Nasipuri , Dipak Kumar Basu

At present, applications of biometrics are rapidly increasing due to inconveniences in using traditional passwords and physical keys. Hand geometry, one of the most well-known biometrics, is implemented in many verification systems with…

Cryptography and Security · Computer Science 2009-05-12 Vit Niennattrakul , Chotirat Ann Ratanamahatana

A smartphone camera can be used for measuring the width and distance of an object by taking its photograph. The focal length of the camera lens can be determined very accurately by finding the image width of an object on the camera sensor…

Physics Education · Physics 2021-11-15 Sanjoy Kumar Pal , Soumen sarkar , Surajit Chakrabarti

In this study, we present an model-based approach to recognize full 26 degrees of freedom of a human hand. Input data include RGB-D images acquired from a Kinect camera and a 3D model of the hand constructed from its anatomy and graphical…

Computer Vision and Pattern Recognition · Computer Science 2020-05-15 Cong Hoang Quach , Minh Trien Pham , Anh Viet Dang , Dinh Tuan Pham , Thuan Hoang Tran , Manh Duong Phung

Action monitoring in a home environment provides important information for health monitoring and may serve as input into a smart home environment. Visual analysis using cameras can recognise actions in a complex scene, such as someones…

Computer Vision and Pattern Recognition · Computer Science 2018-11-14 Lili Tao , Timothy Volonakis , Bo Tan , Yanguo Jing , Kevin Chetty , Melvyn Smith