Sparse optical flow provides stable inter-frame correspondence, playing a key role in Visual Odometry (VO) and Visual-Inertial Odometry (VIO). Classical optimization-based methods, such as Lucas-Kanade (LK), perform well under small displacements but are sensitive to large motions and illumination changes. Modern regre...
Yi-Cheng Lin, Zhi-Peng Fei, Yu-Xiu Xu et al.· 0 citations
Foot drop is a common post-stroke gait impairment that reduces toe clearance and compromises walking safety. Existing assistive interventions are often limited by passive compensation, external power requirements, and manual tuning. Here, we introduce a wearable, gait-timing-adaptive, self‑powered neuroprosthesis (SPN)...
Qi-Qi Pan, Yu-Yan Luo, Zhi-He Long et al.· Nature Communications· 0 citations
Vectored-thrust cross-domain robots must maintain accurate six-DOF motion under strong nearshore wave disturbances and strict actuator saturation/rate limits. Under such conditions, conventional controller-allocator separation can create a command-execution mismatch: the motion controller evolves based on an ideal gene...
