mmPencil: Toward Writing-Style-Independent In-Air Handwriting Recognition via mmWave Radar and Large Vision-Language Model
A multi-stage spatial trajectory reconstruction algorithm that extracts frequency-domain features to identify handwriting regions and achieve high-precision reconstruction of 3D word trajectories is designed, and a novel spatial-to-visual mapping algorithm is introduced, which bridges the gap between spatial trajectory...
Yi-Fan Guo, Zhu Wang, Qian Qin et al.
· Proceedings of the ACM on In... · 4 citations