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We introduce Spurfies, a novel method for sparse-view surface reconstruction that disentangles appearance and geometry information to utilize local geometry priors trained on synthetic data. Recent research heavily focuses on 3D…

Computer Vision and Pattern Recognition · Computer Science 2024-08-30 Kevin Raj , Christopher Wewer , Raza Yunus , Eddy Ilg , Jan Eric Lenssen

In modern agriculture, precise monitoring of plants and fruits is crucial for tasks such as high-throughput phenotyping and automated harvesting. This paper addresses the challenge of reconstructing accurate 3D shapes of fruits from partial…

Computer Vision and Pattern Recognition · Computer Science 2024-09-16 Zhi Chen , Tianqi Wei , Zecheng Zhao , Jia Syuen Lim , Yadan Luo , Hu Zhang , Xin Yu , Scott Chapman , Zi Huang

This paper introduces HPNet, a novel deep-learning approach for segmenting a 3D shape represented as a point cloud into primitive patches. The key to deep primitive segmentation is learning a feature representation that can separate points…

Computer Vision and Pattern Recognition · Computer Science 2021-10-22 Siming Yan , Zhenpei Yang , Chongyang Ma , Haibin Huang , Etienne Vouga , Qixing Huang

3D object-level mapping is a fundamental problem in robotics, which is especially challenging when object CAD models are unavailable during inference. In this work, we propose a framework that can reconstruct high-quality object-level maps…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Ziwei Liao , Jun Yang , Jingxing Qian , Angela P. Schoellig , Steven L. Waslander

The latest sheet stamping processes enable efficient manufacturing of complex shape structural components that have high stiffness to weight ratios, but these processes can introduce defects. To assist component design for stamping…

Machine Learning · Computer Science 2022-02-09 Hamid Reza Attar , Alistair Foster , Nan Li

Shape informs how an object should be grasped, both in terms of where and how. As such, this paper describes a segmentation-based architecture for decomposing objects sensed with a depth camera into multiple primitive shapes, along with a…

Robotics · Computer Science 2022-01-05 Yunzhi Lin , Chao Tang , Fu-Jen Chu , Ruinian Xu , Patricio A. Vela

We present Neural Shape Deformation Priors, a novel method for shape manipulation that predicts mesh deformations of non-rigid objects from user-provided handle movements. State-of-the-art methods cast this problem as an optimization task,…

Computer Vision and Pattern Recognition · Computer Science 2023-02-02 Jiapeng Tang , Lev Markhasin , Bi Wang , Justus Thies , Matthias Nießner

3D Shape representation has substantial effects on 3D shape reconstruction. Primitive-based representations approximate a 3D shape mainly by a set of simple implicit primitives, but the low geometrical complexity of the primitives limits…

Computer Vision and Pattern Recognition · Computer Science 2021-08-20 Mohsen Yavartanoo , JaeYoung Chung , Reyhaneh Neshatavar , Kyoung Mu Lee

This paper proposes a simple method which solves an open problem of multi-view 3D-Reconstruction for objects with unknown and generic surface materials, imaged by a freely moving camera and a freely moving point light source. The object can…

Computer Vision and Pattern Recognition · Computer Science 2021-04-13 Ziang Cheng , Hongdong Li , Richard Hartley , Yinqiang Zheng , Imari Sato

Recent learning approaches that implicitly represent surface geometry using coordinate-based neural representations have shown impressive results in the problem of multi-view 3D reconstruction. The effectiveness of these techniques is,…

Computer Vision and Pattern Recognition · Computer Science 2021-07-28 Eduard Ramon , Gil Triginer , Janna Escur , Albert Pumarola , Jaime Garcia , Xavier Giro-i-Nieto , Francesc Moreno-Noguer

Recently researchers have been shifting their focus towards learned 3D shape descriptors from hand-craft ones to better address challenging issues of the deformation and structural variation inherently present in 3D objects. 3D geometric…

Computer Vision and Pattern Recognition · Computer Science 2017-11-29 Mengwei Ren , Liang Niu , Yi Fang

We propose a novel 3d shape representation for 3d shape reconstruction from a single image. Rather than predicting a shape directly, we train a network to generate a training set which will be fed into another learning algorithm to define…

Computer Vision and Pattern Recognition · Computer Science 2022-05-02 Biao Zhang , Peter Wonka

We introduce a new method to reconstruct 3D objects using a set of volumetric primitives, i.e., superquadrics. The method hierarchically decomposes a target 3D object into pairs of superquadrics recovering finer and finer details. While…

Computer Vision and Pattern Recognition · Computer Science 2022-09-19 Jaka Šircelj , Peter Peer , Franc Solina , Vitomir Štruc

Deep implicit field regression methods are effective for 3D reconstruction from single-view images. However, the impact of different sampling patterns on the reconstruction quality is not well-understood. In this work, we first study the…

Computer Vision and Pattern Recognition · Computer Science 2020-07-28 Yifan Xu , Tianqi Fan , Yi Yuan , Gurprit Singh

This paper presents a novel approach to learn and detect distinctive regions on 3D shapes. Unlike previous works, which require labeled data, our method is unsupervised. We conduct the analysis on point sets sampled from 3D shapes, then…

Graphics · Computer Science 2020-04-22 Xianzhi Li , Lequan Yu , Chi-Wing Fu , Daniel Cohen-Or , Pheng-Ann Heng

We introduce a novel depth estimation technique for multi-frame structured light setups using neural implicit representations of 3D space. Our approach employs a neural signed distance field (SDF), trained through self-supervised…

Computer Vision and Pattern Recognition · Computer Science 2024-05-21 Rukun Qiao , Hiroshi Kawasaki , Hongbin Zha

Accurate molecular geometries are a prerequisite for reliable quantum-chemical predictions, yet density functional theory (DFT) optimization remains a major bottleneck for high-throughput molecular screening. Here we present GeoOpt-Net, a…

Chemical Physics · Physics 2026-02-02 Chengchun Liu , Wendi Cai , Boxuan Zhao , Fanyang Mo

We present Surf-D, a novel method for generating high-quality 3D shapes as Surfaces with arbitrary topologies using Diffusion models. Previous methods explored shape generation with different representations and they suffer from limited…

Computer Vision and Pattern Recognition · Computer Science 2024-07-25 Zhengming Yu , Zhiyang Dou , Xiaoxiao Long , Cheng Lin , Zekun Li , Yuan Liu , Norman Müller , Taku Komura , Marc Habermann , Christian Theobalt , Xin Li , Wenping Wang

Change Detection is a crucial but extremely challenging task of remote sensing image analysis, and much progress has been made with the rapid development of deep learning. However, most existing deep learning-based change detection methods…

Computer Vision and Pattern Recognition · Computer Science 2024-04-30 Yuhang Gan , Wenjie Xuan , Hang Chen , Juhua Liu , Bo Du

Learning-based surface reconstruction based on unsigned distance functions (UDF) has many advantages such as handling open surfaces. We propose SuperUDF, a self-supervised UDF learning which exploits a learned geometry prior for efficient…

Computer Vision and Pattern Recognition · Computer Science 2023-10-24 Hui Tian , Chenyang Zhu , Yifei Shi , Kai Xu
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