Bristol Interaction Group will present 10 papers and 8 late breaking work at ACM CHI 2016.
The following are our 10 papers and notes
Investigating Text Legibility on Non-Rectangular Displays
Understanding and Mitigating the Effects of Device and Cloud Service Design Decisions on the Environmental Footprint of Digital Infrastructure
Tap the ShapeTones: Exploring the effects of crossmodal congruence in an audio-visual interface
EMPress: Practical Hand Gesture Classification with Wrist-Mounted EMG and Pressure Sensing
Office Social: Presentation Interactivity for Nearby Devices
GauntLev: A Wearable to Manipulate Free-floating Objects
Shared Language and the Design of Home Healthcare Technology
PathSync: Multi-User Gestural Interaction with Touchless Rhythmic Path Mimicry
PowerShake: Power Transfer Interactions for Mobile Devices The
Tyranny of the Everyday in Mobile Video Messaging
We are pleased to announce The Economist has published an article on a paper by BIG researchers Paul Worgan, Jarrod Knibbe, Diego Martinez Plasencia and Mike Fraser.
The paper presents a power sharing concept called PowerShake. PowerShake enables users to share power across their multiple mobile devices, such as smartphones, tablets and smartwatches, using inductive power transfer. Today we are beginning to carry multiple mobile devices, though the energy is used at different rates across each of the devices, meaning one device could have near full battery and another almost no battery. PowerShake allows users to transfer energy, for example, from their tablet to their phone to support an important phone call. PowerShake also allows users to share or trade power with others, including friends, family and colleagues, on-the-go and all without charging cables.
Watch the PowerShake video for more information.
BIG researcher Themis Omirou presented the paper ‘Floating Charts’ at the 3DUI conference in Greenville South Carolina. The conference was part of the IEEE Virtual Reality conference 2016 which hosted an array of interesting demos involving a variety of VR headsets and augmented reality headwear.
Bristol Interaction Group researcher Peter Bennett attended SXSW last week to present a panel on “Subtle Interfaces: Designing for Calm Tech” along with Verity Macintosh, Chloe Meineck and Tom Metcalfe. Audio recording of the panel below, with a video to follow soon.
Bristol Interaction Group member Asier Marzo demonstrated the world’s first sonic tractor beam to Hollywood actors Ben Stiller, Owen Wilson and Will Ferrell on the Spanish TV programme El Hormiguero.
Bristol Interaction group will present six papers at ACM CHI 2016.
Themis Omirou and Paul Worgan are presenting ‘Flexible On-Body Coils for Inductive Power Transfer to IoT Garments and Wearables’ at the IEEE World Forum on the Internet of Things in Milan.
Their paper demonstrates that on body inductive power transfer designers have the flexibility to customise their coils into aesthetic shapes, with performance in accordance with Faraday’s Law of Induction.
BIG member Asier Marzo won the 1st place as the Peoples’ Choice in the Art of Science Competition.
The Mandelbrot set contains the points (C) that satisfy the purely mathematical condition of not escaping to infinity when iterated as (Zn+1 = Zn^2 + C).
In the picture, we present a modification of the set in which the orbits of each escaping point are drawn (Buddhabrot). Different colours are assigned depending on the amount of the iterations applied before existing a stable orbit.
Engineers and physicist use mathematics as the language to describe reality yet its foundations (ZFC core) are thought to be independent of our existence.
“God used beautiful mathematics in creating the world.” Paul Dirac
Congratulations to Tom Carter from Ultrahaptics – for winning the rising star new engineer of the year 2015 Elektra Awards.
Researcher Asier Marzo, affiliated to BIG, is the main author in the recent paper published in Nature Communications “Holographic Acoustic Elements for Manipulation of Levitated Particles”. The research is a collaboration between Bristol University (BIG and uNDT groups), Sussex University (Interact Lab), Ultrahaptics and the Public University of Navarre (TAIPECO group).
In the paper, a method to create acoustic holograms with a phased-array of ultrasonic transducers is presented. These holograms are tridimensional acoustic fields that can be emitted even from a flat surface. Unless the conventional light-holograms, the acoustic holograms cannot be seen but they exert considerable forces on physical objects and can pass through water and human tissue. This enables the creation of tractor beams, tangible displays of levitated pixels or the manipulation of particles inside the human body.
Three holograms were found to be optimum for levitation. The first is an acoustic field that resembles a pair of fingers that pinch the particle. The second is an acoustic tornado that drags the objects to its eye. And the third could be described as a high-intensity cage that surrounds the objects from all directions.
An ultrasonic phased-array is composed of several loudspeakers denominated transducers. Each transducer plays a sinusoidal wave of the same frequency and amplitude but with slightly different offsets (phase-delays). The waves are emitted from a two-dimensional surface yet their interference patterns creates a tri-dimensional shape above.
A canon is a musical composition in which the same melody is played by several instruments but starting at different times. The composition is carefully engineered to create beautiful harmonies at every instant that result from the combination of the same melody played at different points. Similarly, our computer algorithm calculates the phase-delays for each transducer so that the listener, the particle in our case, gets surrounded by the desired acoustic levels.
The authors of the paper are Asier Marzo, Sue Ann Seah, Bruce W. Drinkwater, Deepak Ranjan Sahoo, Benjamin Long and Sriram Subramanian.