Search Results for author: Jiadai Sun

Found 12 papers, 2 papers with code

Forward Flow for Novel View Synthesis of Dynamic Scenes

no code implementations ICCV 2023 Xiang Guo, Jiadai Sun, Yuchao Dai, GuanYing Chen, Xiaoqing Ye, Xiao Tan, Errui Ding, Yumeng Zhang, Jingdong Wang

This paper proposes a neural radiance field (NeRF) approach for novel view synthesis of dynamic scenes using forward warping.

Novel View Synthesis

Digging into Depth Priors for Outdoor Neural Radiance Fields

no code implementations8 Aug 2023 Chen Wang, Jiadai Sun, Lina Liu, Chenming Wu, Zhelun Shen, Dayan Wu, Yuchao Dai, Liangjun Zhang

However, the shape-radiance ambiguity of radiance fields remains a challenge, especially in the sparse viewpoints setting.

Novel View Synthesis

MapNeRF: Incorporating Map Priors into Neural Radiance Fields for Driving View Simulation

no code implementations27 Jul 2023 Chenming Wu, Jiadai Sun, Zhelun Shen, Liangjun Zhang

The key insight is that map information can be utilized as a prior to guiding the training of the radiance fields with uncertainty.

Autonomous Driving

Learning a Task-specific Descriptor for Robust Matching of 3D Point Clouds

no code implementations26 Oct 2022 Zhiyuan Zhang, Yuchao Dai, Bin Fan, Jiadai Sun, Mingyi He

In this paper, we propose to learn a robust task-specific feature descriptor to consistently describe the correct point correspondence under interference.

CU-Net: LiDAR Depth-Only Completion With Coupled U-Net

1 code implementation26 Oct 2022 YuFei Wang, Yuchao Dai, Qi Liu, Peng Yang, Jiadai Sun, Bo Li

We find that existing depth-only methods can obtain satisfactory results in the areas where the measurement points are almost accurate and evenly distributed (denoted as normal areas), while the performance is limited in the areas where the foreground and background points are overlapped due to occlusion (denoted as overlap areas) and the areas where there are no measurement points around (denoted as blank areas) since the methods have no reliable input information in these areas.

Searching Dense Point Correspondences via Permutation Matrix Learning

no code implementations26 Oct 2022 Zhiyuan Zhang, Jiadai Sun, Yuchao Dai, Bin Fan, Qi Liu

In response, this paper presents a novel end-to-end learning-based method to estimate the dense correspondence of 3D point clouds, in which the problem of point matching is formulated as a zero-one assignment problem to achieve a permutation matching matrix to implement the one-to-one principle fundamentally.

Efficient Spatial-Temporal Information Fusion for LiDAR-Based 3D Moving Object Segmentation

1 code implementation5 Jul 2022 Jiadai Sun, Yuchao Dai, Xianjing Zhang, Jintao Xu, Rui Ai, Weihao Gu, Xieyuanli Chen

We also use a point refinement module via 3D sparse convolution to fuse the information from both LiDAR range image and point cloud representations and reduce the artifacts on the borders of the objects.

Autonomous Driving Collision Avoidance +1

VRNet: Learning the Rectified Virtual Corresponding Points for 3D Point Cloud Registration

no code implementations24 Mar 2022 Zhiyuan Zhang, Jiadai Sun, Yuchao Dai, Bin Fan, Mingyi He

3D point cloud registration is fragile to outliers, which are labeled as the points without corresponding points.

Point Cloud Registration

A Representation Separation Perspective to Correspondences-free Unsupervised 3D Point Cloud Registration

no code implementations24 Mar 2022 Zhiyuan Zhang, Jiadai Sun, Yuchao Dai, Dingfu Zhou, Xibin Song, Mingyi He

Existing correspondences-free methods generally learn the holistic representation of the entire point cloud, which is fragile for partial and noisy point clouds.

Point Cloud Registration

MUNet: Motion Uncertainty-aware Semi-supervised Video Object Segmentation

no code implementations29 Nov 2021 Jiadai Sun, Yuxin Mao, Yuchao Dai, Yiran Zhong, Jianyuan Wang

The task of semi-supervised video object segmentation (VOS) has been greatly advanced and state-of-the-art performance has been made by dense matching-based methods.

Object Semantic Segmentation +2

End-to-end Learning the Partial Permutation Matrix for Robust 3D Point Cloud Registration

no code implementations28 Oct 2021 Zhiyuan Zhang, Jiadai Sun, Yuchao Dai, Dingfu Zhou, Xibin Song, Mingyi He

Even though considerable progress has been made in deep learning-based 3D point cloud processing, how to obtain accurate correspondences for robust registration remains a major challenge because existing hard assignment methods cannot deal with outliers naturally.

Point Cloud Registration

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