Explore sensor fusion techniques using machine learning for smart forehead temperature sensing in this tinyML Asia 2021 conference talk. Delve into PixArt Imaging's innovative solution that combines FIR sensors, ultra-low-power CMOS image sensors, and machine learning processing chips to efficiently detect human presence, measure forehead temperature, and identify mask usage. Learn about the background, applications, and benefits of this integrated approach in response to COVID-19 pandemic demands. Gain insights into the challenges faced, data processing flow, and the advantages of low-power sensors in this context. Discover how Tiny Machine Learning enhances this application and its potential impact on automated temperature measurement methods.