The importance of transepidermal water loss (TEWL) as a measure the skin barrier is well recognized. Currently, open-chamber method dominant, but it increasingly challenged by newer closed-chamber technologies. Whilst there familiarity with characteristics, uncertainty about capabilities challengers. main issues are related to how microclimate affects TEWL measurements. aim this paper provide framework for understanding effects on measurement. Part problem that measurement indirect....

In this paper, a neural network-based lip reading system is proposed. The lexicon-free and uses purely visual cues. With only limited number of visemes as classes to recognise, the designed read sentences covering wide range vocabulary recognise words that may not be included in training. has been testified on challenging BBC Lip Reading Sentences 2 (LRS2) benchmark dataset. Compared with state-of-the-art works sentences, achieved significantly improved performance 15% lower word error rate....

A survey on automated lip-reading approaches is presented in this paper with the main focus being deep learning related methodologies which have proven to be more fruitful for both feature extraction and classification. This also provides comparisons of all different components that make up systems including audio-visual databases, extraction, classification networks schemas. The contributions unique insights are: 1) comparison Convolutional Neural Networks other neural network architectures...

Abstract Lip‐reading is a process of interpreting speech by visually analysing lip movements. Recent research in this area has shifted from simple word recognition to lip‐reading sentences the wild. This paper attempts use phonemes as classification schema for explore an alternative and enhance system performance. Different schemas have been investigated, including character‐based visemes‐based schemas. The visual front‐end model consists Spatial‐Temporal (3D) convolution followed 2D ResNet....

Photothermal techniques are infrared remote sensing that have been used for biomedical applications, as well industrial non-destructive testing (NDT). Machine learning is a branch of artificial intelligence, which includes set algorithms from past data and analyzing new data, without being explicitly programmed to do so. In this paper, we first review the latest development machine its applications in photothermal techniques. Next, present our work on analysis opto-thermal transient emission...

We present a new technique, thermal emission decay Fourier transform infrared spectroscopy, designed to perform noninvasive, noncontacting absorption spectrum measurements on unprepared, arbitrary surfaces. It uses pulsed optical heating of the near-surface region sample produce transient spectra in midinfrared spectral for room temperature samples. The raw data intensity versus path difference time after excitation can be processed two ways; (1) yield time-resolved depth profiling layered...

We present our latest research on skin characterizations by using Contact Capacitive Imaging and High-Resolution Ultrasound with Machine Learning algorithms. is a novel imaging technology based the dielectric constant measurement principle, which we have studied water content of different sites performed image classification pre-trained Deep Neural Networks through Transfer Learning. The results show lips nose lowest content, whilst cheek, eye corner under-eye highest content. yields up to...

Background Despite the frequent use of porcine ear skin for tape‐stripping experiments, peculiarities this type have not been characterised in detail yet. Thus, different techniques were employed to investigate surface structure and changes barrier function during vitro tape stripping. To end, potential capacitance‐based hydration imaging as a means quality control was investigated first time. Methods The model before stripping using transepidermal water loss ( TEWL ) measurements, sensor...

Photothermal radiometry is an infrared remote sensing technique that has been used for skin and appendages research, in the areas of hydration, hydration gradient, depth profiling, thickness measurements, pigmentation effect topically applied substances, transdermal drug delivery, moisture content bio-materials, membrane permeation, nail hair measurements. Compared with other technologies, photothermal advantages non-contact, non-destructive, quick to make a measurement (a few seconds),...

Skin capacitive imaging is a novel technique which has been developed for skin hydration and solvent penetration measurements. This research to assess the performance of deep learning in in-vivo image analysis using AlexNet model. The classifier trained by pretrained model implement specific feature extraction, prediction classification specifically characteristics such as level, damage level etc. There are over 1000 images used this study. objectives are: extraction implementation AlexNet;...

Mapping facial skin in terms of its biophysical properties plays a fundamental role many practical applications, including, among others, forensics, medical and beauty treatments, cosmetic restorative surgery. In this paper we present an vivo evaluation the water content, trans-epidermial loss thickness six areas human face: cheeks, chin, forehead, lips, neck nose. The experiments were performed on population healthy subjects through innovative sensing devices which enable fast yet accurate...

Abstract Objective Skin imaging plays a key role in many clinical studies. We have used skin techniques, including the recently developed capacitive contact based on fingerprint sensors. The aim of this study was to develop an effective image retrieval technique using Gabor wavelet transform, which can be different types images, but with special focus images. Methods Content‐based (CBIR) is useful technology retrieve stored images from database by supplying query In typical CBIR, are...

This article focuses on the extraction of information from human skin and scalp hair for evaluation a subject’s condition in cosmetic pharmaceutical industries. It uses capacitive images existing hand-held research equipment it applies image processing algorithms to expand their possible applications. The literature review introduces readers into field research, highlights pieces that can be extracted by vivo ex measurements. Then, selected scientific is presented, Maxwell-based...

A binocular stereo vision measurement system is widely used in fields such as industrial inspection and marine engineering due to its high accuracy, low cost, ease of deployment. An unreasonable structural design can lead difficulties image matching inaccuracies depth computation during subsequent processing, thereby limiting the system’s performance applicability. This paper establishes a systemic error analysis model enable validation changes parameters on measurement. Specifically, impact...

Opto-thermal transient emission radiometry (OTTER) is a novel infrared remote sensing technology that can be used for water distribution within stratum corneum measurements. Comparing with other skin content measurement techniques, OTTER has the advantages of non-contact, non-destructive, spectroscopic in nature, and work on unprepared, arbitrary surfaces. Here we report our optothermal We will first introduce apparatus, then show opto-thermal results surface hydration gradient, thickness,...

Synopsis Skin over‐hydration is a common problem that affects many people who wear incontinence pads or diapers. The aim of this study to develop new method for stratum corneum ( SC ) and water diffusion coefficient measurements using opto‐thermal transient emission radiometry OTTER evaporimetry. With , we can measure the surface hydration gradient. evaporimetry, time‐dependent evaporative drying curves vapour flux density WVFD ). combination results yield information on how it depends...

The aim of this study was to investigate the occlusion effects in capacitive contact imaging, and develop a new quantitative methodology for vivo skin assessments using imaging condenser-TEWL (transepidermal water loss) method.Two measurement technologies were used study, i.e., method. Three types damages studied, intensive washes, tape stripping sodium lauryl sulphate (SLS) irritation. test sites chosen on volar forearms healthy volunteers (aged 25-45); measurements taken both before...

Skin appearance is almost universally the object of gender-related expectations and stereotypes. This not with standing, remarkably little work has been done on establishing quantitatively whether skin texture can be used for gender discrimination. We present a detailed analysis 43 subjects based two complementary imaging modalities afforded by visible-light dermoscope recently developed Epsilon sensor capacitive imaging. consider an array established features in combination supervised...

As an alternative approach, viseme-based lipreading systems have demonstrated promising performance results in decoding videos of people uttering entire sentences. However, the overall such has been significantly affected by efficiency conversion visemes to words during process. shown literature, issue become a bottleneck where system's can decrease dramatically from high classification accuracy (e.g., over 90%) comparatively very low only just 60%). The underlying cause this phenomenon is...

Stratum corneum (SC) is the outermost skin layer. SC hydration important for its cosmetic properties and barrier function. trans-epidermal water loss (TEWL) measurements content are two key indexes used characterisation. The instrument stability accuracy vitally when measuring small changes. In this paper, we present our latest study on effect of sun tan lotion by using TEWL measurements. We developed techniques to improve measurement visualise changes, as well machine learning algorithms...