SP2T adds a sparse proxy attention stream to a point transformer, improving 3D segmentation and detection accuracy on indoor and outdoor benchmarks over PTv3.
Multi-view 3d object detection network for autonomous driv- ing
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SP$^2$T: Sparse Proxy Attention for Dual-stream Point Transformer
SP2T adds a sparse proxy attention stream to a point transformer, improving 3D segmentation and detection accuracy on indoor and outdoor benchmarks over PTv3.