CAST achieves 80.5% Top-1 accuracy on radar-only sign language recognition by fusing physics-aware CVD and RTM representations through channel-aware spatial attention and asymmetric cross-attention.
Modality-specific benchmarks and radar range-doppler envelope classification for multimodal isolated sign language recognition
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CAST: Channel-Aware Spatial Transfer Learning with Pseudo-Image Radar for Sign Language Recognition
CAST achieves 80.5% Top-1 accuracy on radar-only sign language recognition by fusing physics-aware CVD and RTM representations through channel-aware spatial attention and asymmetric cross-attention.