Yet computer animation, the art of instilling life into believable characters and fantastic worlds, is still a highly sophisticated process restricted to the spheres of expert users. The sensor design could be useful for robotic and other applications, such as fruit picking or as a bio-instrument for the diabetic insole.Ĭreativity tools for digital media have been largely democratised, offering a range from beginner to expert tools. This DE multimodal capacitive sensor, with pressure and localization capability, paves the way for further development with potential applications in bio-mechatronics technology and other humanoid devices. The sensor is placed on a passive elastomeric substrate in order to increase deformation and optimize the sensor’s sensitivity. The top layer measures the applied pressure, while the underlying sensor array enables location identification. This multimodal sensor is a soft, flexible, and stretchable dielectric elastomer (DE) capacitive pressure mat that is composed of a multi-layer soft and stretchy DE sensor. A unique dielectric elastomer-based multimodal capacitive sensor has been developed to quantify the pressure and the location of any touch simultaneously. A brief description of most of the common technologies to realize (multi-) touch surfaces is provided however, the main focus is on those that utilise optical approaches.ĭielectric elastomer (DE) sensors have been widely used in a wide variety of applications, such as in robotic hands, wearable sensors, rehabilitation devices, etc. In addition, we discuss the problem of latency introduced by the dierent parts of the system.
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In addition, we out- line how to integrate this hardware to allow users to create a solid multi-touch surface, and provide an overview of exist- ing software libraries for the implementation of multi-touch applications. We mostly focus on technical aspects that are important in the construction of optical multi-touch surfaces, including: infrared illumination, silicone compliant surfaces, projection screens, cameras, lters, and projectors. This document aims to summarize the knowledge and ex- perience of developers of multi-touch technology who gath- ered at the Bootcamp on Construction & Implementation of Optical Multi-touch Surfaces at Tabletop 2008 in Ams- terdam, and seeks to provide hints and practical advice to people seeking to \build your own" multi-touch surface. Although many of these techniques have been presented in an academic setting, the practicali- ties of building a high quality multi-touch enabled surface, both in terms of the software and hardware, are not trivial.
Approaches to the implementation of multi-touch interaction such as Frustrated Total Internal Reection (FTIR) and Diused Illumination (DI) have allowed for the low cost development of such surfaces, leading to a number of technology and ap- plication innovations. Multi-touch interaction with computationally enhanced sur- faces has received considerable recent attention.
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