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Deep neural networks are found to be prone to adversarial examples which could deliberately fool the model to make mistakes. Recently, a few of works expand this task from 2D image to 3D point cloud by using global point cloud optimization.…

计算机视觉与模式识别 · 计算机科学 2021-10-12 Yiming Sun , Feng Chen , Zhiyu Chen , Mingjie Wang

Generating 3D point clouds is challenging yet highly desired. This work presents a novel autoregressive model, PointGrow, which can generate diverse and realistic point cloud samples from scratch or conditioned on semantic contexts. This…

计算机视觉与模式识别 · 计算机科学 2019-11-07 Yongbin Sun , Yue Wang , Ziwei Liu , Joshua E. Siegel , Sanjay E. Sarma

Generative Adversarial Networks (GAN) have attracted much research attention recently, leading to impressive results for natural image generation. However, to date little success was observed in using GAN generated images for improving…

计算机视觉与模式识别 · 计算机科学 2017-11-15 Xinlong Wang , Zhipeng Man , Mingyu You , Chunhua Shen

Point clouds and meshes are widely used 3D data structures for many computer vision applications. While the meshes represent the surfaces of an object, point cloud represents sampled points from the surface which is also the output of…

计算机视觉与模式识别 · 计算机科学 2024-03-12 Batuhan Cengiz , Mert Gulsen , Yusuf H. Sahin , Gozde Unal

In the past several decades, many attempts have been made to model synthetic realistic geometric data. The goal of such models is to generate plausible 3D geometries and textures. Perhaps the best known of its kind is the linear 3D…

计算几何 · 计算机科学 2018-08-28 Ron Slossberg , Gil Shamai , Ron Kimmel

As an essential tool in security, the intrusion detection system bears the responsibility of the defense to network attacks performed by malicious traffic. Nowadays, with the help of machine learning algorithms, intrusion detection systems…

密码学与安全 · 计算机科学 2022-05-11 Zilong Lin , Yong Shi , Zhi Xue

Deep generative models have been successfully applied to many applications. However, existing works experience limitations when generating large images (the literature usually generates small images, e.g. 32 * 32 or 128 * 128). In this…

计算机视觉与模式识别 · 计算机科学 2019-03-06 Zihan Ding , Xiao-Yang Liu , Miao Yin , Linghe Kong

Adversarial attacks on point clouds often impose strict geometric constraints to preserve plausibility; however, such constraints inherently limit transferability and undefendability. While deformation offers an alternative, existing…

计算机视觉与模式识别 · 计算机科学 2025-07-02 Keke Tang , Ziyong Du , Weilong Peng , Xiaofei Wang , Peican Zhu , Ligang Liu , Zhihong Tian

Generative Adversarial Networks (GANs) have been very successful for synthesizing the images in a given dataset. The artificially generated images by GANs are very realistic. The GANs have shown potential usability in several computer…

计算机视觉与模式识别 · 计算机科学 2023-02-20 Shiv Ram Dubey , Satish Kumar Singh

As a new approach to train generative models, \emph{generative adversarial networks} (GANs) have achieved considerable success in image generation. This framework has also recently been applied to data with graph structures. We propose…

机器学习 · 计算机科学 2021-02-26 Shuangfei Fan , Bert Huang

In this paper, we propose a new method for mapping a 3D point cloud to the latent space of a 3D generative adversarial network. Our generative model for 3D point clouds is based on SP-GAN, a state-of-the-art sphere-guided 3D point cloud…

计算机视觉与模式识别 · 计算机科学 2022-11-17 Jaeyeon Kim , Binh-Son Hua , Duc Thanh Nguyen , Sai-Kit Yeung

State-of-the-art methods in image-to-image translation are capable of learning a mapping from a source domain to a target domain with unpaired image data. Though the existing methods have achieved promising results, they still produce…

计算机视觉与模式识别 · 计算机科学 2021-08-17 Hao Tang , Hong Liu , Dan Xu , Philip H. S. Torr , Nicu Sebe

Differentiable rendering has paved the way to training neural networks to perform "inverse graphics" tasks such as predicting 3D geometry from monocular photographs. To train high performing models, most of the current approaches rely on…

计算机视觉与模式识别 · 计算机科学 2021-04-22 Yuxuan Zhang , Wenzheng Chen , Huan Ling , Jun Gao , Yinan Zhang , Antonio Torralba , Sanja Fidler

Conventional methods of 3D object generative modeling learn volumetric predictions using deep networks with 3D convolutional operations, which are direct analogies to classical 2D ones. However, these methods are computationally wasteful in…

计算机视觉与模式识别 · 计算机科学 2017-06-22 Chen-Hsuan Lin , Chen Kong , Simon Lucey

Unsupervised domain adaptation (UDA) frameworks have shown good generalization capabilities for 3D point cloud semantic segmentation models on clean data. However, existing works overlook adversarial robustness when the source domain itself…

计算机视觉与模式识别 · 计算机科学 2025-04-15 Haosheng Li , Junjie Chen , Yuecong Xu , Kemi Ding

This paper proposes a novel model for video generation and especially makes the attempt to deal with the problem of video generation from text descriptions, i.e., synthesizing realistic videos conditioned on given texts. Existing video…

计算机视觉与模式识别 · 计算机科学 2020-08-14 Hongyuan Yu , Yan Huang , Lihong Pi , Liang Wang

We investigate how generative adversarial nets (GANs) can help semi-supervised learning on graphs. We first provide insights on working principles of adversarial learning over graphs and then present GraphSGAN, a novel approach to…

社会与信息网络 · 计算机科学 2018-09-05 Ming Ding , Jie Tang , Jie Zhang

Micro-CT scanning of rocks significantly enhances our understanding of pore-scale physics in porous media. With advancements in pore-scale simulation methods, such as pore network models, it is now possible to accurately simulate multiphase…

图像与视频处理 · 电气工程与系统科学 2024-09-19 Zihan Ren , Sanjay Srinivasan

Generative Adversarial Networks (GANs) are deep learning architectures capable of generating synthetic datasets. Despite producing high-quality synthetic images, the default GAN has no control over the kinds of images it generates. The…

机器学习 · 计算机科学 2021-03-24 Vaikkunth Mugunthan , Vignesh Gokul , Lalana Kagal , Shlomo Dubnov

This paper describes a new approach for training generative adversarial networks (GAN) to understand the detailed 3D shape of objects. While GANs have been used in this domain previously, they are notoriously hard to train, especially for…

计算机视觉与模式识别 · 计算机科学 2017-11-01 Edward Smith , David Meger