ISWC '19: Proceedings of the 23rd International Symposium on Wearable Computers

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SESSION: Papers, notes, & briefs

Facial expression recognition using ear canal transfer function

In this study, we propose a new input method for mobile and wearable computing using facial expressions. Facial muscle movements induce physical deformation in the ear canal. Our system utilizes such characteristics and estimates facial expressions ...

GestEar: combining audio and motion sensing for gesture recognition on smartwatches

We present GestEar, a gesture recognition method for sound-emitting gestures, such as snapping, knocking, or clapping, using only a simple smartwatch. Besides the motion information from the built-in accelerometer and gyroscope, we exploit audio data ...

Towards a wearable low-cost ultrasound device for classification of muscle activity and muscle fatigue

Being able to reliably predict muscle contractions is important for athletes and rehabilitation patients alike. Numerous techniques and surrogates exist for this task. However, they are in general not well suited for everyday use and not able to extract ...

Swimming style recognition and lap counting using a smartwatch and deep learning

Human activity recognition from raw sensor data has enabled modern wearable devices to track and analyze everyday activities. However, when used in real world conditions, the performance of off-the-shelf devices is often insufficient. This paper tackles ...

WLCSSCuda: a CUDA accelerated template matching method for gesture recognition

Template matching methods can benefit from multi-cores architecture in order to parallelise and accelerate the matching of multiple templates. We present WLCSSCuda: a GPU accelerated implementation of the Warping Longest Common Subsequence (WLCSS) ...

Transfer learning across human activities using a cascade neural network architecture

Cascade Learning (CL) [20] is a new adaptive approach to train deep neural networks. It is particularly suited to transfer learning, as learning is achieved in a layerwise fashion, enabling the transfer of selected layers to optimize the quality of ...

Effects of the textile-sensor interface on stitched strain sensor performance

The influence of the textile substrate on the performance of a textile-based strain sensor has not been well understood or characterized in many wearable sensor evaluations. The underlying textile has its own anisotropic mechanical behaviors due to its ...

User experiences of garment-based dynamic compression for novel haptic applications

Compression is a haptic stimulus used in medical interventions (e.g., compression stockings) and has the potential to be integrated into new research areas (e.g., immersive VR experiences, distributed notification mechanisms), yet remains largely ...

A comparative feasibility analysis for sensing swelling with textile-based soft strain sensors

Sensing edema or swelling in the body is a parameter of interest for many clinical and cosmetic applications of wearable technology. Edema creates heightened sensitivity to pressure points, making soft textile-based sensors particularly attractive. ...

Blink as you sync: uncovering eye and nod synchrony in conversation using wearable sensing

We tend to synchronize our movements to the person we are talking to during face-to-face conversation. Higher interpersonal synchrony is linked to greater empathy and more effortless interactions. This paper presents a first method and a corresponding ...

Remote monitoring of stroke patients' rehabilitation using wearable accelerometers

In this work, we outline an automated system for continuous assessment of patient recovery levels generically in movement-related disorders using wrist-worn accelerometers, with visualisation of aspects of recovery trends. We demonstrate our model on ...

On the role of features in human activity recognition

Traditionally, the sliding window based activity recognition chain (ARC) has been dominating practical applications, in which features are carefully optimized towards scenario specifics. Recently, end-to-end, deep learning methods, that do not ...

Towards making kinetic garments based on conductive fabric and smart hair

We introduce a novel making method for kinetic garments, which can change their shape and are thus used for decoration and self-expression. Such garments are generally realized by attaching devices to garments, and wiring and control systems are ...

Designing batteryless wearables for hospitalized older people

Older people have expressed a clear desire for unobtrusive wearable monitoring devices. Emerging batteryless sensor technologies such as sensor enabled RFID (Radio Frequency Identification) create new opportunities for building unobtrusive wearables for ...

Personal thermal perception models using skin temperatures and HR/HRV features: comparison of smartwatch and professional measurement devices

In order to detect a person's individual momentary thermal sensation and comfort, an increased number of models are developed that involve physiological data, especially skin temperatures and features based on the heart activity. In this paper, we ...

JacquardToolkit: enabling interactions with the Levi's Jacquard jacket

JacquardTooIkit enables full access to the Levi's Jacquard Jacket and the ability to create gestures such as our new "Force Touch" gesture. We conduct a 25 participant user study testing all available gestures for accuracy and intuitiveness. "Brush In" ...

Handling annotation uncertainty in human activity recognition

Developing systems for Human Activity Recognition (HAR) using wearables typically relies on datasets that were manually annotated by human experts with regards to precise timings of instances of relevant activities. However, obtaining such data ...

TiPoint: detecting fingertip for mid-air interaction on computational resource constrained smartglasses

Smartglasses mostly rely on hardware interfaces such as touch-pad and buttons, which are often cumbersome and counter-intuitive to use. Furthermore, smartglasses feature cheap and low-power hardware preventing the use of advanced pointing techniques. To ...

SelfSync: exploring self-synchronous body-based hotword gestures for initiating interaction

SelfSync enables rapid, robust initiation of a gesture interface using synchronized movement of different body parts. SelfSync is the gestural equivalent of a hotword such as OK-Google in a speech interface and is enabled by the increasing trend where a ...

InDexMo: exploring finger-worn RFID motion tracking for activity recognition on tagged objects

This work explores and evaluates the designs of finger-worn radio-frequency identification (RFID) motion tracking for activity recognition on tagged objects. We propose an index-finger-worn device that consists of a short-range (~2cm) RFID reader and a ...

Boosting word recognition for vibrotactile skin reading

Proficiency in any form of reading requires a considerable amount of practice. With exposure, people get better at recognising words, because they develop strategies that enable them to read faster. This paper describes a study investigating recognition ...

A wrist-worn motion evaluation system for fast and powerful down picking of heavy metal guitar

A fast and powerful down picking skill of rhythm guitar is crucial for heavy metal songs. At more than 400 beats per minute, which is a typical starting point for heavy metal songs, most players feel hard to keep the picking rhythm. In this paper, we ...

Readability and legibility of fonts considering shakiness of head mounted displays

In wearable computing environments, users acquire visual information in various scenes using a head mounted display (HMD). However, this induces problems due to their differences from conventional displays such as smartphone and e-books. In this ...

EEG spectra vs recurrence features in understanding cognitive effort

Characterizing cognitive states of a person based on surface electroencephalography (EEG) is traditionally performed by analyzing spectral power of the electrical brain activity at different frequency bands. Although frequency band activity over ...

An early characterisation of wearing variability on motion signals for wearables

We explore a new variability observed in motion signals acquired from modern wearables. Wearing variability refers to the variations of the device orientation and placement across wearing events. We collect the accelerometer data on a smartwatch and an ...

TIARA: technology integrated apnea respiration analyser

Obstructive sleep apnea (OSA) is a serious disorder in which people repeatedly stop breathing during sleep. This paper presents the Technology Integrated Apnea Respiration Analyser (TIARA), an innovative wearable device as an alternative to ...

Wrinkling and bending effect in wireless power transfer on clothes

In this paper, we examine the effect of wrinkling and bending generated in coils when used in wearable devices and investigate how they affect the wireless power supply system. A wrinkle is modeled as a semi-cylindrical deformation in a coil, and a bend ...

Wearer-centered design for animal biotelemetry: implementation and wearability test of a prototype

In this paper we present an approach to designing wearer-centered biotelemetry for non-human (and human) animal wearers. Drawing from fundamental values and principles of user-centered design, we describe a wearer-centered framework to heuristically ...

Reevaluating passive haptic learning of morse code

Passive Haptic Learning (PHL) describes the learning of a motion, sequence or pattern without voluntary involvement of attention, focus or motivation through a haptic interface. In previous PHL studies about teaching Morse code, we suspect that active ...

eTextiles: reviewing a practice through its tool/kits

Electronic textiles, or eTextiles, and connected research and practice communities grew within and across diverse disciplines over the past 20 years. Initially evolving from academic investigations, eTextiles now play a growing role in both industry and ...

Enhancing support for optimal muscle usage in sports: coaching and skill-improvement tracking with sEMG

Cardiopulmonary function and power as well as efficient motion skill are extremely important for athletes. Thanks to the latest sensing technology and smart devices, many researchers have focused on sports-skill analysis. Electromyography (EMG), in ...

Multi-target affect detection in the wild: an exploratory study

Affective computing aims to detect a person's affective state (e.g. emotion) based on observables. The link between affective states and biophysical data, collected in lab settings, has been established successfully. However, the number of realistic ...

Altered pinna: exploring shape change of pinna for perception and illusion of sound direction change

This study demonstrates that by opening and closing the human pinna, we can change the direction of sound perceived by humans. Each ear was independently transformed into a 100% open, 50% open, and 100% closed state, and all 9 combinations of these ear ...

Recurrent network based automatic detection of chronic pain protective behavior using MoCap and sEMG data

In chronic pain physical rehabilitation, physiotherapists adapt exercise sessions according to the movement behavior of patients. As rehabilitation moves beyond clinical sessions, technology is needed to similarly assess movement behaviors and provide ...

Efficient multiplier-less inference of deep autoencoders on wearable healthcare systems

This paper presents an efficient multiplier-less inference (MLI) approach of deep autoencoders (DAE) for wearable healthcare systems. It employs a novel grouped multiplier block (GMB) module to reduce computational/hardwired complexity of DAE during ...

Estimating load positions of wearable devices based on difference in pulse wave arrival time

With the increasing use of wearable devices equipped with various sensors, human activities, biometric information, and surrounding situations can be obtained via sensor data regardless of time and place. When position-free wearable devices are attached ...

Understanding social perceptions towards interacting with on-skin interfaces in public

Wearable devices have evolved towards intrinsic human augmentation, unlocking the human skin as an interface for seamless interaction. However, the non-traditional form factor of these on-skin interfaces, as well as the gestural interactions performed ...

CoRSA: a cardio-respiratory monitor in sport activities

We present the system CoRSA to incorporate integrated sensors in millimeter-scale packages for continuous cardiorespiratory (CR) evaluation in sports activities. CoRSA retrofits trending sports apparel to add on CR sensing capability. The system uses an ...

SESSION: Design exhibition

Digital craftsmanship in the wearable senses lab

Wearable and e-textiles as a field has tended to overlook its own documentation, as notions and overarching ideas are developed over time and across individual projects. We would like to begin addressing this by charting the development of Digital ...

Telesuit: design and implementation of an immersive user-centric telepresence control suit

Telepresence takes place when a user is afforded the experience of being in a remote environment or a virtual world, through the use of immersive technologies. The development of a humanoid robot and a control apparatus that correlates the operator's ...

Iterative design and development of remotely-controllable, dynamic compression garment for novel haptic experiences

This work encompasses the design and development of garment-based shape memory alloy (SMA) compression technology that is dynamic, low-mass, and remotely controllable. Three garment design iterations are presented, consolidated from past user studies [1]...

Linn dress: enabling a dynamically adjustable neckline

We present the design and prototype of the Linn Dress, a transforming dress that allows its wearer to dynamically reveal and conceal areas of skin, as they feel comfortable and appropriate for different contexts. Electrochromic displays are employed as ...

VitaBoot: footwear with dynamic graphical patterning

VitaBoot is a footwear concept incorporating dynamic graphical patterns which indicate the wearer's activity level. Whilst shoes are an important element in fashion wear and a lot of research has focused on shoes as input devices, comparable few ...

Awareness jacket: EMF-shielding garment

This project explores ways to augment the sense of awareness. The human senses are exceptional, this project attempts to empower them in order to augment the senses further. The project aim is to elevate the senses by deleting distractions. Although the ...

Syn(es)thetic reality: simulating synesthesia for the non synesthetic

Syn(es)thetic Reality explores a new way of sensing the world by understanding sounds through colors. It looks to simulate projective chromesthesia, an experience of seeing colors involuntarily as a result of sound input. The project achieves this ...

ChakraSuit: experimental directed meditation wearable

ChakraSuit is an experimental wearable which aids in finding the best location for meditation, enabling one to learn about the interaction between the natural environment, sound, and the body. The prototype continuously listens to ambient sounds, and ...

Layered embroidery for dynamic aesthetics

We present an embroidery technique that allows for the creation of dynamic fabrics. These embroidered dynamic fabrics allow for the conceal and reveal of information or visuals based on different viewing angles and lighting conditions. Using this ...

Myco-accessories: sustainable wearables with biodegradable materials

Sustainability has been addressed in fashion, product design and furniture making fields. Recycling and disposing e-textiles has been a concern in this community for years[20]; however, the impact of designing sustainable wearables is still new ...

Emotional prosthesis for animating awe through performative biofeedback

Awe is a heightened emotional state of fear and wonder that creates a physiological response resulting in a cascade of hairs standing on end, also known as piloerection or goose-bumps. This latent sense once served an animalian purpose of survival, but ...

Listening space: Satellite Ikats

Listening Space is an artistic research that was born during the eTextile Spring Break camp that took place in upstate New York at the beginning of April 2019. Following their previous explorations of ecologies of transmissions and wanting to experiment ...

Algorithmic fashion aesthetics: Mandelbrot

The lack of real innovation is one of the problems the fashion system suffers from. But there is so much interesting mathematics available now, with such deep meanings, that it is a shame not to exploit it, or at least seriously try. We are interested ...

A wearable therapy and technology garment for kids: the underlying super hero

Children today live in a fast-paced, ever-changing and sensory overloaded society. With anxiety and depression in children becoming more present within today's youth, the need to address these concerns including increased health and behavioral issues ...

Touch mood: GSR and FITI enabled wearable

Touch Mood is a wearable technology project which obtains skin signals from subjects via GSR and an MLX90614 thermal camera. The system gives real-time feedback of the subjectâǍŹs emotional state via the embedded RGB LEDs and nitinol wire enabled ...

DualSkin: ambient electric field sensing wearable

Humans are capable of identifying and categorizing objects in their environment with the aid of their sensory organs. DualSkin is a wearable which equips the user with ambient electric field sensing. The aim of the project is to develop a new sense that ...