Ars Electronica Festival 2016: Artist Lab Yoichi Ochiai


9月8日から9月12日、オーストリア・リンツにて開催されたArs Electronica Festival 2016で、Artist Lab Yoichi Ochiaiとして、Digital Nature Groupの作品を展示しました。

Digital Nature

To present the vision of a post-pixel multimedia ecosystem after the ubiquitous society, we have conducted the research towards our vision called Digital Nature, on alternative perspective of nature and humanity. We believe the ecosystem in Digital Nature will be described as the interdisciplinary computational projects on multimedia systems. graphics, HCI research, fabrication, robotics, art, architecture, materials science and biology. Here we exhibit mixtures of our artwork and research achievements on the Digital Nature projects “and innovative projection technologies.

Post from RICOH THETA. – Spherical Image – RICOH THETA


Digital Nature Groupは、リンツにあるPOST CITYの一室で11プロジェクトの展示を行いました。この画像・動画はその部屋の様子を撮影したものです。


member: Yoichi Ochiai, Kenta Suzuki, Ippei Suzuki, Kotaro Omomo, Yuzu Saijo


Gushed Light Field

Authors: Ippei Suzuki, Shuntarou Yoshimitsu, Keisuke Kawahara, Nobutaka Ito, Atsushi Shinoda, Akira Ishii, Takatoshi Yoshida, Yoichi Ochiai
This project presents a new method of aerial imaging by oerosol-based fog screens. In this study, it is proposed to odd new tradeoffs between limited display time and payloads. An offtheshelf oerosol spray is used as a fog screen that con resist the wind and is extremely portable.



Leaked Light Field

Authors: Kazuki Takazawa, Kenta Suzuki, Yoichi Ochiai
Leaked Light Field presents a method to convert a non-conductive material into a display that turns light into space. Not only glass, but any material can be used to display the information. A small hole of about 100 μ is drilled in any plate-like material. A computer calculates the leakage of the ray from the back-light. This provides a stereoscopic display, which can be leather. wood, stone or a reflective surface.



Coded Skeleton

Authors: Miyu lwafune, Taisuke Ohshima, Yoichi Ochiai
This project proposes a novel design method to fabricate user interfaces with a mechanical metamaterial called Coded Skeleton. The Coded Skeleton is combination of shape memory allays (SMA) and 3D-printed bodies, and it has a computationally designed structure that is flexible in one deformation mode but is stiff in the other modes.



Solar Projector

Authors: Kotaro Omomo, Atsushi Shinoda, Daitetsu Sato, Yoichi Ochiai
This is a new projector that utilizes solar energy directly. The Solar Projector can produce visible displays even in bright conditions, without having to use an electric power source. It uses a parabolic mirror and components of a digital light processing (DLP) projector. The element of the ‘Solar Projector’ responsible for collecting focused solar energy replaces the lamp.

The Solar Projector has wide range of applications other than projection display. There are two major examples. The first scenario is lines on a court for various sports. If tape is used to mark the court, the field will be permanently designated for a specific sport. However, by using solar projection technology, a field can have different lines projected at different times, allowing different sports to be played on the same field. The second example is growth of vegetation in specific shapes.



Projects on the Materialization of Holography

Author: Yoichi Ochiai
This project is a method of rendering, volumetric graphics using femtosecond lasers. A high -intensity laser excites physical matter to emit light at on arbitrary 3D position. Popular applications con then be explored especially since plasma induced by a femtosecond laser is safer than that generated by a nanosecond loser. There are two methods of rendering graphics with a femtosecond laser in a air: producing holograms using spatial light modulation technology, and scanning a laser beam using a galvano mirror. The holograms and workspace of the system proposed here occupy a volume of up to one cubic centimeter; however, this size is scalable depending on the optical devices and their setup.



Transformed Human-Presence System for Puppet Play

Authors: Mose Sakashita, Keisuke Kawahara, Amy Koike, Kenta Suzuki, Ippei Suzuki, Yoichi Ochiai
In this project a system transmits a performer’s body and facial movements to a puppet and provides visual and audible feedback to the performer. The system consists of a head-mounted display to show the performer videos from cameras in a puppet, a microphone to capture voices and photo-reflectors to detect mouth movements. This puppetry system allows performers to manipulate puppets without practicing, since they are manipulated in accordance with the movements of the performer’s body and face.



Thermal Tactile Display

Authors: Mao Morita, Yoichi Ochiai
Thermal Tectile Display is a display to present the warmth by utilizing the heat generated by the thermo-acoustic phenomenon that occurs when propagating focused ultrasound in a narrow space. A metal plate with spaced out fine holes is used as a display, with heat generated in it by irradiating with an ultrasonic wave.



Cross-Field Haptics

Authors: Satoshi Hashizume, Kazuki Takazawa, Amy Koike, Yoichi Ochiai
Cross-Field Haptics presents a new method of rendering textures using electrostatic fields and magnetic fields. In conventional research, a single physical quantity is used to render, haptic textures. In contrast, this method combines multiple fields (electrostatic and magnetic) simultaneously. While these fields do not directly interfere, combining them provides benefits such as multi-resolution haptic imoges and synergistic effects on haptic perception.



Holographic Whisper

Author: Yoichi Ochiai, Takayuki Hoshi
Holographic Whisper is a novel method three-dimensional spatial audio rendering by expanding the ultrasonic phased-array technique. An ultrasonic phased array is deployed as a holographic acoustic generator to focus ultrasound an arbitrary three-dimensional points. With this sound-point method it is possible to control aerial audio broadcasts more flexibly and more precisely compared to conventional super directional loudspeakers. This method can generate and disappear the sound sources freely in air These point-sound sources can deliver private messages or music to individuals.

Pixie Dust Technologies .incとして開発している、空中点音源スピーカー。今までのビーム型の指向性スピーカーと異なり、空中に音響「点」を作ることができます。


Human Coded Orchestra

Authors: Yuzu Saijo, Kenta Suzuki, Yoichi Ochiai
Human Coded Orchestra is a new approach to enable a group of individuals to sing in harmony by using computed directional speakers. You will witness how computers can play humans just like a musical instrument.



Optical Marionette

Authors: Akira Ishii, Ippei Suzuki, Shinji Sakamoto, Keita Kanai, Kazuki Takazawa, Hiraku Doi, Yoichi Ochiai
Optical Marionette presents a novel method of manipulating people’s walking direction by visual processing on head-mounted displays. Existing navigation systems require their users to recognize information and then to follow directions as two separate, conscious processes. This project proposes a novel method that enables pedestrians to be guided without paying attention to the information provided by a navigation system.



下のスライドは、落合陽一によるArs Electronica Summitの講演資料です。