Microsoft researchers unveil Capacitivo, an interactive smart fabric that can automatically recognize objects. Technically speaking, it’s a contact-based object recognition technique developed for interactive fabrics, using capacitive sensing, that can detect things such as food (different types of fruits, liquids, etc.) and other types of objects often found around the house or workplace.
The team created a prototype composed of a 12 x 12 grid of electrodes, made from conductive fabric attached to a textile substrate. To maximize the sensing area and sensitivity, they carefully measured the size as well as separation between the electrodes. A 10-person study was then used to evaluate the performance of the sensing technique using 20 different objects, which yielded a 94.5% accuracy rate.
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This paper demonstrates a technique for contact-based object recognition on interactive fabrics, enabling them to detect everyday objects. We first discussed our sensing principle and investigations into the size and separation between electrodes that were optimal to enable our approach. We then built a prototype with a 12 x 12 grid of electrodes made from conductive fabrics,” said the researchers.