Author

Chao Ma

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Preprint Sep 2026

PointLAM: Local Attentive Mamba for Efficient Point-based 3D Object Detection

3D object detection from LiDAR point clouds faces a fundamental dilemma: voxel-based methods achieve efficiency at the cost of geometric quantization, while point-based methods preserve fidelity but suffer from prohibitive computational bottlenecks. Specifically, point-based architectures are crippled by slow downsampl...

Xuan-Ming Shang, Weijia Zhang, Chao Ma · 0 citations

Preprint Aug 2026

Efficient and High-Quality Depth Estimation via Pixel-Space Diffusion with Linear Attention

This work presents $\textbf{Lapis}$, a $\textbf{l}$inear-$\textbf{a}$ttention-based $\textbf{pi}$xel-$\textbf{s}$pace generative framework that achieves efficient and high-fidelity depth estimation with one-step diffusion. While generative frameworks have significantly advanced monocular depth estimation with superior...

Bing-De Liu, Wu Ran, Jinglei Zhang et al. · 0 citations