Custom-made tangible interfaces with touchtokens

Abstract

TouchTokens were introduced recently as a means to design lowcost tangible interfaces. The technique consists in recognizing multitouch patterns associated with specific tokens, and works on any touch-sensitive surface, with passive tokens that can be made out of any material. TouchTokens have so far been limited to a few basic geometrical shapes only, which puts a significant practical limit to how tailored token sets can be. In this article, we introduce TouchTokenBuilder and TouchTokenTracker that, taken together, aim at facilitating the development of tailor-made tangible interfaces. TouchTokenBuilder is an application that assists interface designers in creating token sets using a simple direct-manipulation interface. TouchTokenTracker is a library that enables tracking the tokens' full geometry. We report on experiments with those tools, showing the strengths and limitations of tangible interfaces with passive tokens. CCS CONCEPTS • Human-centered computing → Interface design prototyping; Gestural input;

IoT4Fun Rapid Prototyping Toolkit for Smart Toys

“…In related literature, we classify existing RPTs for smart toys into smart devices [1,4,5], AR-based platforms [6,7,8], mobile-based platforms [8,9,10,11], and modular toolkits [12]. In Table 1, we detail RPTs from the literature, including related products and licenses, and compare them with the IoT4Fun Toolkit.…”

“…Future versions of IoT4Fun can benefit from miniaturization, robustness, and reliability improvements. As a means to demonstrate adequacy with elicited requirements, in Section 3, we first compare IoT4Fun features with other RPTs from literature and industry [1,4,5,6,7,8,9,10,11,12]. In Section 4, we introduce IoT4Fun, a toolkit that combines embedded, modular, and plug-and-play approaches.…”

PTPG: A Poisson Triangular Pattern Generator for Tokens on Tangible Surfaces

“…With the popularity of mobile tablets, an increasing number of TUI systems used portable capacitive touchscreens as tangible surfaces [9], [17]- [20]. Capacitive patterns were usually formed by relative spatial information of several touchpoints.…”

“…An increasing number of researchers are exploring object recognition methods using capacitive sensing [11], [12], [14], [19], [28]. General capacitive patterns use relative spatial information among several touches [17]. TouchTokens [20] used three touches to form a triangular pattern, and selected a group of 12 patterns by heuristic experiments.…”

Interacción Tangible en escenarios educativos

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