Abstract
Research has developed various solutions in order for computers to recognize hand gestures in the context of human machine interface (HMI). The design of a successful hand gesture recognition system must address functionality and usability. The gesture recognition market has evolved from touchpads to touchless sensors, which do not need direct contact. Their application in textiles ranges from the field of medical environments to smart home applications and the automotive industry. In this paper, a textile capacitive touchless sensor has been developed by using screen-printing technology. Two different designs were developed to obtain the best configuration, obtaining good results in both cases. Finally, as a real application, a complete solution of the sensor with wireless communications is presented to be used as an interface for a mobile phone.
Highlights
The ability of computers to recognize hand gestures is essential for progress in human-computer interaction (HCI) and human machine interaction (HMI) [1]
One of the most relevant devices is the Microsoft Kinect sensor, updated as Azure Kinect DK sensor, both consisting of advanced sensing hardware combining a VGA (Video Graphics Array) video camera, an infrared depth sensor and a multi-array microphone allowing people to interact with the games using their body [2]
This paper shows the behaviour and influence of different smart textile materials used as capacitive sensors for the purpose of hand gesture recognition
Summary
The ability of computers to recognize hand gestures is essential for progress in human-computer interaction (HCI) and human machine interaction (HMI) [1]. These alternatives have shown good results with high classification accuracy and some disadvantages such as the calibration of the orientation or the need to use gloves that may be uncomfortable for the user Another group of solutions are based on proximity sensors that have limited gesture recognition but good accuracy and low price. One of the advantages of this technology is that it is possible to use capacitive sensors on non-rigid substrates, supporting flexible and stretchable substrates [35,36] All these features offer an opportunity to overcome challenges that smart textiles demand [37] as user interfaces embedded into textiles and fabrics [38]. A real-world application is presented, a mouse for a mobile phone
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