Journal of Robotics and Mechatronics

Even highly realistic androids can cause unease when their facial expressions lack emotional consistency. Traditionally, a "patchwork method" has been used for facial movements, but it comes with practical limitations. A team developed a new technology using "waveform movements" to create real-time, complex expressions without unnatural transitions. This system reflects internal states, enhancing emotional communication between robots and humans, potentially making androids feel more humanlike.