Publications by authors named "Zheng-Ning Liu"

Article Synopsis
  • * The paper introduces DGNet, a deep neural network leveraging dual graph pyramids to efficiently handle irregular mesh structures, enhancing feature propagation and local geometric information gathering.
  • * Experimental results show that DGNet excels in tasks like shape analysis and scene understanding, outperforming existing methods on benchmarks, with resources available for further exploration.
View Article and Find Full Text PDF
Article Synopsis
  • Self-attention is crucial for deep learning in visual tasks, but it has a quadratic complexity and doesn't account for correlations between different samples.
  • The article introduces "external attention," which uses two small, shared memories and linear layers to replace self-attention, resulting in linear complexity and better handling of sample correlations.
  • The new external attention mechanism, combined with a multi-head approach, forms an all-MLP architecture called EAMLP, demonstrating competitive performance in various tasks with lower computational costs.
View Article and Find Full Text PDF

We present a learning-based approach to reconstructing high-resolution three-dimensional (3D) shapes with detailed geometry and high-fidelity textures. Albeit extensively studied, algorithms for 3D reconstruction from multi-view depth-and-color (RGB-D) scans are still prone to measurement noise and occlusions; limited scanning or capturing angles also often lead to incomplete reconstructions. Propelled by recent advances in 3D deep learning techniques, in this paper, we introduce a novel computation- and memory-efficient cascaded 3D convolutional network architecture, which learns to reconstruct implicit surface representations as well as the corresponding color information from noisy and imperfect RGB-D maps.

View Article and Find Full Text PDF