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Zihang Lai

13 accepted papers

2025

Dynamic Point Maps: A Versatile Representation for Dynamic 3D Reconstruction

ICCV 2025poster

DUSt3R has recently demonstrated that many tasks in multi-view geometry, including estimating camera intrinsics and extrinsics, reconstructing 3D scenes, and establishing image correspondences, can be reduced to predicting a pair of viewpoint-invariant point maps, i.e., pixel-aligned point clouds de…

Cited by 0SourcePDFScholar
2022

ActiveNeRF: Learning Where to See with Uncertainty Estimation

ECCV 2022poster

"Recently, Neural Radiance Fields (NeRF) has shown promising performances on reconstructing 3D scenes and synthesizing novel views from a sparse set of 2D images. Albeit effective, the performance of NeRF is highly influenced by the quality of training samples. With limited posed images from the sce…

2022

AdaFocus V2: End-to-End Training of Spatial Dynamic Networks for Video Recognition

CVPR 2022poster

Recent works have shown that the computational efficiency of video recognition can be significantly improved by reducing the spatial redundancy. As a representative work, the adaptive focus method (AdaFocus) has achieved a favorable trade-off between accuracy and inference speed by dynamically ident…

Cited by 63PDFcodeScholar
2022

Learning to Weight Samples for Dynamic Early-Exiting Networks

ECCV 2022poster

"Early exiting is an effective paradigm for improving the inference efficiency of deep networks. By constructing classifiers with varying resource demands (the exits), such networks allow easy samples to be output at early exits, removing the need for executing deeper layers. While existing works ma…

2021

Video Autoencoder: Self-Supervised Disentanglement of Static 3D Structure and Motion

ICCV 2021poster

We present Video Autoencoder for learning disentangled representations of 3D structure and camera pose from videos in a self-supervised manner. Relying on temporal continuity in videos, our work assumes that the 3D scene structure in nearby video frames remains static. Given a sequence of video fram…

Cited by 39PDFScholar
2019

Anytime Stereo Image Depth Estimation on Mobile Devices

ICRA 2019poster

Many applications of stereo depth estimation in robotics require the generation of accurate disparity maps in real time under significant computational constraints. Current state-of-the-art algorithms force a choice between either generating accurate mappings at a slow pace, or quickly generating in…

Cited by 265SourcecodeScholar
2019

Imitation Refinement for X-ray Diffraction Signal Processing

ICASSP 2019accepted

Many real-world tasks involve identifying signals from data satisfying background or prior knowledge. In domains like materials discovery, due to the flaws and biases in raw experimental data, the identification of X-ray diffraction (XRD) signals often requires significant (manual) expert work to fi…

Cited by 0SourceScholar