All Outputs (30)

Highly sensitive contact pressure measurements using FBG patch in endotracheal tube cuff (2016)
Journal Article

A method for measuring the contact pressure between an endotracheal tube cuff and the trachea was designed and developed by using a fibre Bragg grating (FBG) based optical fibre sensor. The FBG sensor is encased in an epoxy based UV-cured cuboid patc... Read More about Highly sensitive contact pressure measurements using FBG patch in endotracheal tube cuff.

Motion limitations of non-contact photoplethysmography due to the optical and topological properties of skin (2016)
Journal Article

Non-contact photoplethysmography (PPG) provides multiple benefits over in-contact methods, but is not as tolerant to motion due to the lack of mechanical coupling between the subject and sensor. One limitation of non-contact photoplethysmography is... Read More about Motion limitations of non-contact photoplethysmography due to the optical and topological properties of skin.

Comparison of laser Doppler and laser speckle contrast imaging using a concurrent processing system (2016)
Journal Article

Full field laser Doppler imaging (LDI) and single exposure laser speckle contrast imaging (LSCI) are directly compared using a novel instrument which can concurrently image blood flow using both LDI and LSCI signal processing. Incorporating a commerc... Read More about Comparison of laser Doppler and laser speckle contrast imaging using a concurrent processing system.

An automated quasi-continuous capillary refill timing device (2015)
Journal Article

Capillary refill time (CRT) is a simple means of cardiovascular assessment which is widely used in clinical care. Currently, CRT is measured through manual assessment of the time taken for skin tone to return to normal colour following blanching of t... Read More about An automated quasi-continuous capillary refill timing device.

Performance of a condensed electrode patch compared to a diffuse electrode array for transabdominal fetal heart rate and uterine contraction monitoring: a preliminary report (2015)
Journal Article

Objective: Intrapartum monitoring of the fetal heart rate (FHR), maternal heart rate (MHR) and uterine activity (UA) can be done noninvasively via adhesive electrodes on the parturient’s abdominal surface. This approach, requiring multiple electrodes... Read More about Performance of a condensed electrode patch compared to a diffuse electrode array for transabdominal fetal heart rate and uterine contraction monitoring: a preliminary report.

Forehead reflectance photoplethysmography to monitor heart rate: preliminary results from neonatal patients (2014)
Journal Article

Around 5%–10% of newborn babies require some form of resuscitation at birth and heart rate (HR) is the best guide of efficacy. We report the development and first trial of a device that continuously monitors neonatal HR, with a view to deployment in... Read More about Forehead reflectance photoplethysmography to monitor heart rate: preliminary results from neonatal patients.

Influence of maternal body mass index on accuracy and reliability of external fetal monitoring techniques (2014)
Journal Article

CMOS sensors for imaging blood flow (2010)
Journal Article

Smart CMOS sensors can extract parameters of interest from incoming signals at the sensor and therefore overcome the data bottleneck between sensor and processor. This enables full-field laser Doppler blood flow imaging to be obtained at a frame rate... Read More about CMOS sensors for imaging blood flow.

The design and characterisation of an optical VLSI processor for real time centroid detection (2002)
Journal Article

The integration of photo-detectors onto a standard CMOS integrated circuit is presented. This device provides the optical front end for a real time centroid detection system to be used as part of a larger system for implementing a Shack-Hartmann wave... Read More about The design and characterisation of an optical VLSI processor for real time centroid detection.

The design and characterisation of an optical VLSI processor for real time centroid detection (2001)
Journal Article

The integration of photo-detectors onto a standard CMOS integrated circuit is presented. This device provides the optical front end for a real time centroid detection system to be used as part of a larger system for implementing a Shack-Hartmann wave... Read More about The design and characterisation of an optical VLSI processor for real time centroid detection.