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We present the first approach for 3D point-cloud to image translation based on conditional Generative Adversarial Networks (cGAN). The model handles multi-modal information sources from different domains, i.e. raw point-sets and images. The…

Computer Vision and Pattern Recognition · Computer Science 2019-09-17 Stefan Milz , Martin Simon , Kai Fischer , Maximillian Pöpperl

In this paper, we present a novel point generation model, referred to as Pillar-based Point Generation Network (PillarGen), which facilitates the transformation of point clouds from one domain into another. PillarGen can produce synthetic…

Computer Vision and Pattern Recognition · Computer Science 2024-03-11 Jisong Kim , Geonho Bang , Kwangjin Choi , Minjae Seong , Jaechang Yoo , Eunjong Pyo , Jun Won Choi

Efficiently generating energetically stable crystal structures has long been a challenge in material design, primarily due to the immense arrangement of atoms in a crystal lattice. To facilitate the discovery of stable material, we present…

Artificial Intelligence · Computer Science 2025-09-30 Zhelin Li , Rami Mrad , Runxian Jiao , Guan Huang , Jun Shan , Shibing Chu , Yuanping Chen

In this paper, we propose Neural Points, a novel point cloud representation and apply it to the arbitrary-factored upsampling task. Different from traditional point cloud representation where each point only represents a position or a local…

Computer Vision and Pattern Recognition · Computer Science 2022-04-01 Wanquan Feng , Jin Li , Hongrui Cai , Xiaonan Luo , Juyong Zhang

Mechanical metamaterials enable precise control over structural properties, but their design method remains challenging due to their complex structure. Although additive manufacturing has expanded geometric freedom, navigating this vast and…

Soft Condensed Matter · Physics 2025-09-18 Kijung Kim , Seungwook Hong , Wonjun Jung , Wooseok Kim , Namjung Kim , Howon Lee

In the recent years, the research community has witnessed growing use of 3D point cloud data for the high applicability in various real-world applications. By means of 3D point cloud, this modality enables to consider the actual size and…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Daichi Otsuka , Shinichi Mae , Ryosuke Yamada , Hirokatsu Kataoka

Point clouds acquired from range scans are often sparse, noisy, and non-uniform. This paper presents a new point cloud upsampling network called PU-GAN, which is formulated based on a generative adversarial network (GAN), to learn a rich…

Computer Vision and Pattern Recognition · Computer Science 2019-07-26 Ruihui Li , Xianzhi Li , Chi-Wing Fu , Daniel Cohen-Or , Pheng-Ann Heng

3D point cloud analysis has drawn a lot of research attention due to its wide applications. However, collecting massive labelled 3D point cloud data is both time-consuming and labor-intensive. This calls for data-efficient learning methods.…

Computer Vision and Pattern Recognition · Computer Science 2023-01-23 Fayao Liu , Guosheng Lin , Chuan-Sheng Foo , Chaitanya K. Joshi , Jie Lin

The reconstruction of real-world surfaces is on high demand in various applications. Most existing reconstruction approaches apply 3D scanners for creating point clouds which are generally sparse and of low density. These points clouds will…

Computer Vision and Pattern Recognition · Computer Science 2021-03-01 Rajat Sharma , Tobias Schwandt , Christian Kunert , Steffen Urban , Wolfgang Broll

Key points, correspondences, projection matrices, point clouds and dense clouds are the skeletons in image-based 3D reconstruction, of which point clouds have the important role in generating a realistic and natural model for a 3D…

Computer Vision and Pattern Recognition · Computer Science 2022-06-20 Trung-Kien Le , Ping Li

Estimating the complete 3D point cloud from an incomplete one is a key problem in many vision and robotics applications. Mainstream methods (e.g., PCN and TopNet) use Multi-layer Perceptrons (MLPs) to directly process point clouds, which…

Computer Vision and Pattern Recognition · Computer Science 2020-07-21 Haozhe Xie , Hongxun Yao , Shangchen Zhou , Jiageng Mao , Shengping Zhang , Wenxiu Sun

We propose a mechanism to reconstruct part annotated 3D point clouds of objects given just a single input image. We demonstrate that jointly training for both reconstruction and segmentation leads to improved performance in both the tasks,…

Computer Vision and Pattern Recognition · Computer Science 2018-10-02 Priyanka Mandikal , Navaneet K L , R. Venkatesh Babu

Point cloud is an important type of geometric data structure. Due to its irregular format, most researchers transform such data to regular 3D voxel grids or collections of images. This, however, renders data unnecessarily voluminous and…

Computer Vision and Pattern Recognition · Computer Science 2017-04-12 Charles R. Qi , Hao Su , Kaichun Mo , Leonidas J. Guibas

Contemporary deep neural networks offer state-of-the-art results when applied to visual reasoning, e.g., in the context of 3D point cloud data. Point clouds are important datatype for precise modeling of three-dimensional environments, but…

Machine Learning · Computer Science 2022-05-23 Maciej Zamorski , Michał Stypułkowski , Konrad Karanowski , Tomasz Trzciński , Maciej Zięba

In this paper, we address the problem of reconstructing an object's surface from a single image using generative networks. First, we represent a 3D surface with an aggregation of dense point clouds from multiple views. Each point cloud is…

Computer Vision and Pattern Recognition · Computer Science 2018-11-26 Jinglu Wang , Bo Sun , Yan Lu

Point cloud data now are popular data representations in a number of three-dimensional (3D) vision research realms. However, due to the limited performance of sensors and sensing noise, the raw data usually suffer from sparsity, noise, and…

Computer Vision and Pattern Recognition · Computer Science 2024-11-05 Siwen Quan , Junhao Yu , Ziming Nie , Muze Wang , Sijia Feng , Pei An , Jiaqi Yang

While the community of 3D point cloud generation has witnessed a big growth in recent years, there still lacks an effective way to enable intuitive user control in the generation process, hence limiting the general utility of such methods.…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Kiyohiro Nakayama , Mikaela Angelina Uy , Jiahui Huang , Shi-Min Hu , Ke Li , Leonidas J Guibas

Scanning real-life scenes with modern registration devices typically give incomplete point cloud representations, mostly due to the limitations of the scanning process and 3D occlusions. Therefore, completing such partial representations…

Computer Vision and Pattern Recognition · Computer Science 2021-02-12 Przemysław Spurek , Artur Kasymov , Marcin Mazur , Diana Janik , Sławomir Tadeja , Łukasz Struski , Jacek Tabor , Tomasz Trzciński

Recent years have witnessed the growth of point cloud based applications because of its realistic and fine-grained representation of 3D objects and scenes. However, it is a challenging problem to compress sparse, unstructured, and…

Image and Video Processing · Electrical Eng. & Systems 2020-11-10 Jianqiang Wang , Dandan Ding , Zhu Li , Zhan Ma

Reconstructing 3D point clouds into triangle meshes is a key problem in computational geometry and surface reconstruction. Point cloud triangulation solves this problem by providing edge information to the input points. Since no vertex…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Huan Lei , Ruitao Leng , Liang Zheng , Hongdong Li
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