Search Results for author: Qiangeng Xu

Found 11 papers, 8 papers with code

Point-NeRF: Point-based Neural Radiance Fields

1 code implementation CVPR 2022 Qiangeng Xu, Zexiang Xu, Julien Philip, Sai Bi, Zhixin Shu, Kalyan Sunkavalli, Ulrich Neumann

Point-NeRF combines the advantages of these two approaches by using neural 3D point clouds, with associated neural features, to model a radiance field.

3D Reconstruction Neural Rendering

Behind the Curtain: Learning Occluded Shapes for 3D Object Detection

1 code implementation4 Dec 2021 Qiangeng Xu, Yiqi Zhong, Ulrich Neumann

Finally, the probability of occupancy is also integrated into a proposal refinement module to generate the final bounding boxes.

3D Object Detection object-detection +1

Accurate 3D Facial Geometry Prediction by Multi-Task, Multi-Modal, and Multi-Representation Landmark Refinement Network

1 code implementation16 Apr 2021 Cho-Ying Wu, Qiangeng Xu, Ulrich Neumann

This work focuses on complete 3D facial geometry prediction, including 3D facial alignment via 3D face modeling and face orientation estimation using the proposed multi-task, multi-modal, and multi-representation landmark refinement network (M$^3$-LRN).


Geometry-Aware Instance Segmentation with Disparity Maps

1 code implementation14 Jun 2020 Cho-Ying Wu, Xiaoyan Hu, Michael Happold, Qiangeng Xu, Ulrich Neumann

Mask regression is based on 2D, 2. 5D, and 3D ROI using the pseudo-lidar and image-based representations.

 Ranked #1 on Instance Segmentation on Cityscapes val (using extra training data)

Instance Segmentation Semantic Segmentation

Grid-GCN for Fast and Scalable Point Cloud Learning

1 code implementation CVPR 2020 Qiangeng Xu, Xudong Sun, Cho-Ying Wu, Panqu Wang, Ulrich Neumann

Compared with popular sampling methods such as Farthest Point Sampling (FPS) and Ball Query, CAGQ achieves up to 50X speed-up.

Point Cloud Classification

Stochastic Dynamics for Video Infilling

no code implementations1 Sep 2018 Qiangeng Xu, Hanwang Zhang, Weiyue Wang, Peter N. Belhumeur, Ulrich Neumann

In this paper, we introduce a stochastic dynamics video infilling (SDVI) framework to generate frames between long intervals in a video.

Report: Dynamic Eye Movement Matching and Visualization Tool in Neuro Gesture

1 code implementation27 Dec 2017 Qiangeng Xu, John Kender

In the research of the impact of gestures using by a lecturer, one challenging task is to infer the attention of a group of audiences.


Generative Cooperative Net for Image Generation and Data Augmentation

no code implementations8 May 2017 Qiangeng Xu, Zengchang Qin, Tao Wan

In this paper, we explore a generative model for the task of generating unseen images with desired features.

Data Augmentation Image Generation

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