Optical remote sensing of heartbeats

Costa, German Da

doi:10.1016/0030-4018(95)00181-7

Cited by 31 publications

(15 citation statements)

References 6 publications

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“…One of the first use of image-based methods for HR monitoring (Da Costa, 1995;Parra & Da Costa, 2001) proposes to video acquire the deflections proposing two methods ( fig. 20).…”

Section: Image-based Monitoring Methodsmentioning

confidence: 99%

“…A series of different laboratory solutions as well as market available monitoring systems (see web references) have been already proposed. Finally HR monitoring based on image-based methods (Da Costa, 1995;Poh, 2010;Takano and Ohta, 2007;Garbey et al, 2007), electrical impedance (Ischijima, 1993;Harland et al, 2002), acoustic and ultrasound (Tanaka et al, 2002) approaches have also been reported as valid principles for non contact heart rate monitoring.…”

Section: Introductionmentioning

confidence: 99%

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Non Contact Heart Monitoring

Scalise¹

2012

Advances in Electrocardiograms - Methods and Analysis

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“…One of the first use of image-based methods for HR monitoring (Da Costa, 1995;Parra & Da Costa, 2001) proposes to video acquire the deflections proposing two methods ( fig. 20).…”

Section: Image-based Monitoring Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Non Contact Heart Monitoring

Scalise¹

2012

Advances in Electrocardiograms - Methods and Analysis

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“…Closely related with the application being proposed here, the measurement principle concerning optical remote sensing of heartbeat were established by Da Costa in 1995 [26]. He used a He-Ne laser impinging in the neighborhood of the vein to capture the reflected volume speckle field using digital recording devices.…”

Section: Introductionmentioning

confidence: 99%

“…On the basis of this concept [26], we report on the capability of an optical mouse as basic technology for continuously measuring heartbeat. We propose a novel configuration in which the mouse lens is removed to adapt our previous technology [12] to heart rate measurement using standard PC mouse components.…”

Section: Introductionmentioning

confidence: 99%

Use of PC mouse components for continuous measuring of human heartbeat

et al. 2012

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A new technology for remote measuring of vibration sources was recently developed for industrial, medical, and security-related applications [Int. Appl. Patent No: PCT/IL2008/001008]. It requires relatively expensive equipment, such as high-speed complementary metal oxide semiconductor (CMOS) sensors and customized optics. In this paper, we demonstrate how the usage of a simple personal computer (PC) mouse as an optical system composed of a low-power laser and a CMOS circuitry on the same integrated circuit package, can be used to monitor heartbeat from the wrist. The method is based on modifying the mouse optical system in such a way that it will recognize temporal change in skin's vibration profile, generated due to the heart pulses, as mouse movement. The tests that were carried out show a very good correlation between the heartbeat rate measured from human skin and the reference values taken manually.

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“…Both approaches do not report quantitative results; only a graph is reported and non-correlations with reference signals (i.e. simultaneous ECG) are reported [16].…”

Section: Photoplethysmographic Imagingmentioning

confidence: 99%

A review of non-contact, low-cost physiological information measurement based on photoplethysmographic imaging

Wang

2012

2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society

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Abstract-In recent decades, there has been increasing interest in low-cost, non-contact and pervasive methods for measuring physiological information, such as heart rate (HR), respiratory rate, heart rate variability (HRV) and oxyhemoglobin saturation. The conventional methods including wet adhesive Ag/AgCl electrodes for HR and HRV, the capnograph device for respiratory status and pulse oximetry for oxyhemoglobin saturation provide excellent signals but are expensive, troublesome and inconvenient. A method to monitor physiological information based on photoplethysmographic imaging offers a new means for health monitoring. Blood volume can be indirectly assessed in terms of blood velocity, blood flow rate and blood pressure, which, in turn, can reflect changes in physiological parameters. Changes in blood volume can be determined from the spectra of light reflected from or transmitted through body tissues. Images of an area of the skin surface are consecutively captured with the color camera of a computer or smartphone and, by processing and analyzing the light signals, physiological information such as HR, respiratory rate, HRV and oxyhemoglobin saturation can be acquired. In this paper, we review the latest developments in using photoplethysmographic imaging for non-contact health monitoring and discuss the challenges and future directions for this field.

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Optical remote sensing of heartbeats

Cited by 31 publications

References 6 publications

Non Contact Heart Monitoring

Non Contact Heart Monitoring

Use of PC mouse components for continuous measuring of human heartbeat

A review of non-contact, low-cost physiological information measurement based on photoplethysmographic imaging

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