Tag Archives: Simon Schubiger

Real-Time Snow Cover Simulation (Computers & Graphics)

Title: Real-time GIS-based Snow Cover Approximation and Rendering for Large Terrains

Journal: Computers & Graphics

Authors: Benjamin Neukom, Stefan Müller Arisona, Simon Schubiger

Abstract: Various terrain visualization techniques based on geographic information system (GIS) data already exist. One major drawback of existing visualizations is that they do not capture seasonal variations well. Besides vegetation variations, in colder areas this particularly also applies to snow cover. In this paper, we propose a real-time multi-scale snow cover approximation and visualization for large terrains. The computation runs on a large grid, calculates the snow/water equivalent based on precipitation data from a GIS and snowmelt based on a physically-based solar radiation calculation combined with a degree-day snowmelt approach using level of detail (LOD). The snow visualization is divided into two parts: Zero thickness snow cover textures are generated for distant views. For close up views the terrain’s height field is modified using displacement maps and tessellation to produce thick snow covers. The GPU-based data-parallel computation and the visualization run on the GPU in real-time on a modern desktop computer. The implementation is tested using a real area in the Swiss Alps, with a size of 14.16 by 12.88 km, a grid resolution of 222 × 206, and a time step of 1 h. We compare the rendered results spanning several months with a time series of photographs from webcams for visual accuracy.

Comparison of webcam images (left) of Zermatt with our simulation (right). Trees were placed by hand and the sun position was approximated from the webcam image. (A) Start of the computation on 12.10.2015 with only the initial snow visible. (B) The results on 18.10.2015 after the first snowfall. The snowline was accurately computed. (C) The results on 16.01.2016 after the first heavy snowfall with the whole scene covered in snow. (D) The results on 21.04.2016 with snow beginning to melt as the temperature rises.

Code for Unreal Engine (open source): https://github.com/bneukom/UnrealSnow

Title: Visualizing Waypoints-Constrained Origin-Destination Patterns for Massive Transportation Data
Authors: Benjamin Neukom, Stefan Müller Arisona, Simon Schubiger
Journal: Computers & Graphics
Publisher: Elsevier
Year: 2018
Link: https://doi.org/10.1016/j.cag.2017.10.003

The Wild Jewels

Exhibition at the Institute for the Future (IFTF), Palo Alto, 21 September 2015 – 15 April 2016 as part of the Apocalypse Exhibition by Catherine Young
Pre-opening at swissnex San Francisco, 19 September 2015

Stefan Arisona, Simon Schubiger, Ika Arisona
In collaboration with Catherine Young

The Wild Jewels explore the possibilities of data-driven wearable technology that responds to future environmental scenarios. The pieces make use of data provided by millions of sensors and mobile phones that permanently collect data of the momentary state of a city; and in addition expand the scale to include solar activity data collected from observatories and probes in space.

The collection is inspired by large data analysis and collaboration facilities such as the Value Lab Asia, and it demonstrates typical modes of interaction with data: visualizing, filtering, projecting and connecting in a different context. Thereby, the pieces freely re-interpret and embody these modes, and bring them to a small, personal scale. The functional aspect is combined with precious materials and traditional jewelry and accessory designs, ultimately to be worn as pretty artworks.

Raumwetter (Space Weather Orb)

Raumwetter is a necklace that visualizes the beauty of space weather: The sun permanently releases streams of hot gas into space – the solar wind. A solar flare may blast millions of tons of matter into space, turning the wind into a storm reaching speeds of up to 2 million miles per hour. Luckily, on earth we are protected. Earth’s magnetic field redirects most charged solar particles to flow around the planet. However, space based technology (GPS), communication systems and power grids may be at risk. Thus, Raumwetter also has the capability to warn you of intense solar events.

The Wild Jewels: Raumwetter

Raumwetter: Machine-cut acrylic; “patate di mare”; gold wire; transparent acrylic sphere, lit with pico-projector from inside.

Giftschleuse (Poison Gate Cuff)

On Earth, 780 million people do not have access to clean water, and in the near future, availability of water is expected to decrease in many regions. Giftschleuse is a water filtering bangle that can be worn at all times. It provides instant, clean water. Similarly to an exo-skeleton, it is an exo-organ that provides additional functions to the human body in situations where our own organism cannot deal with conditions such as polluted water. In addition, it maps areas of clean water and shares the data with other water-seekers nearby.

The Wild Jewels: Giftschleuse

Giftschleuse: Machine cut brass, silicon pipes, coloured cooling liquid, electrical pumps.

Durchblick (Clear Vision Goggles)

Besides correcting your seeing capabilities and protecting your eyes from strong light, Durchblick is a multifunctional display device that allows you to project the invisible into your visual perception: Depending on its configuration, it provides hints about wireless communication networks, radiation, dust and more. These are the shades for a hotter planet!

The Wild Jewels: Durchblick

Durchblick: Machine-cut brass, acrylic glasses, motorised clock-work driving the shades.

Übergesund (Super Health Glove)

Übergesund is decorated glove and a social health device that builds spontaneous data networks with other wearers. It will inform you if somebody near you needs help, and it forwards such alerts to others around who might be able to help. In densely populated areas, such as in cities, Übergesund provides a decentralized health-network that allows for community-sourced services that are available at a high response time.

The Wild Jewels: Übergesund

Übergesund: Cut, turned and brushed steel; gold wire; silicon LED strings; custom-programmed smart watch LCD display.

This work was supported by: ETH Zürich (ETH Global & Future Cities Laboratory), FHNW (Institute of 4D Technologies), Institute for the Future, swissnex San Francisco, Consulate General of Switzerland in San Francisco.

House of Futures Poster

The Fine Jewels

More infos on the Apocalypse Project: http://apocalypse.cc

The Exploding, Plastic and Inevitable @ Zouk’s Velvet Underground

Save the date for the night: The EPI is coming to Singapore, and which space would be a better match than Velvet Underground? My friends Tom Kuo (Toronto), Steve Gibson (Vancouver / Edinburgh), Dyz (Singapore), Marcellus & Sho-B (Zurich) and I will be spinning and flickering all night…

Corebounce & Scheinwerfer

Pascal Müller, Stefan Müller Arisona, Simon Schubiger, Matthias Specht, since 2001

Corebounce is a collective of artists and scientists with the common goal of mediating between arts, science, and technology. We maintain a number of new media projects and our own multimedia software research platform, Soundium. We are organised as a non-profit association and collaborate with a number of partners from education, in particular with ETH Zürich, and industry. Continue reading

The Exploding, Plastic and Inevitable Redux

Stefan Müller Arisona and Steve Gibson, since 2006

EPI Redux is re-imagining of the psychedelic classic The Exploding Plastic Inevitable, created by Andy Warhol with the Velvet Underground in the late 1960s. Rather than literally interpreting the original Warhol event, EPI Redux seeks to update psychedelia for the new millennium. Using an excess of technology the project immerses viewers in an overload of the senses and in a Gesamtkunstwerk where sound, vision, space and time coincide. Continue reading

Mobile Systems Architectures Lecture

The lecture “Mobile Systems Architectures 1 & 2”, taught at the Computer Systems Institute of ETH Zurich in 2006 and 2007, was realised in collaboration with Swisscom, and took an integral approach to mobile computing from a “systems view”. The course was targeted at master programme students with an interest in mobile applications and systems design. Its goal was to provide in-depth knowledge of all architectural aspects of today’s mobile systems and to prepare the students for taking a leading role in designing and implementing tomorrow’s mobile systems and application models. The course will directly benefited from the Institute’s internationally acknowledged research competence in systems construction. Swisscom contributed its competence and technicall skills as leading mobile network operator. Continue reading

SQEAK – Real-time Multiuser Interaction Using Cellphones

This research project explored one approach to providing mobile phone users with a simple low cost real-time user interface allowing them to control highly interactive public space applications involving a single user or a large number of simultaneous users. Continue reading

The Digital Marionette

The interactive installation Digital Marionette impressively shows the audience the look and feel of a puppet in the multimedia era: The nicely dressed wooden marionette is replaced by a Lara Croft – like character; the traditional strings attached to puppet control handles emerge into a network of computer cables. The installation is currently exhibited at the Ars Electronica Center in Linz. Continue reading