CN0569: Infrared Gesture Recognition Module
VIDEO
Introducing a Low-Cost System for Touchless Gesture Recognition Applications
Touchless user interfaces have become increasingly popular in healthcare, access control, and consumer-based products, enabling human-machine interaction without physical contact. The use of gesture recognition techniques has made it possible to interpret bodily motion as commands, without the need for language-based interaction. This technology relies on light-sensitive devices like cameras or light sensors to capture data.
The system aims to address the limitations of language-based touchless user interface systems. It transmits pulses of infrared light and reads the reflected light data received by the light sensor, making it ideal for public spaces and noisy environments. 
With a typical sensing range of up to 20 cm and a sample rate of up to 512 samples per second, the system’s response time and noise rejection can be adjusted to meet specific application requirements. The I2C Pmod form factor also makes it easy to connect the reference design to an external development platform, where algorithms can be developed in a high-level language such as Python or MATLAB and then ported to an embedded implementation.
Whether you’re developing automatic test equipment, access control systems, or RF test instrumentation, the low-cost optical system for touchless gesture recognition can help streamline human-machine interaction, reduce the spread of germs, and improve overall user experience.
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