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Gradient-based adversarial attacks are widely used to evaluate the robustness of 3D point cloud classifiers, yet they often rely on uniform update rules that neglect point-wise heterogeneity, leading to perceptible perturbations. We propose…

计算机视觉与模式识别 · 计算机科学 2026-03-20 Jun Chen , Xinke Li , Mingyue Xu , Chongshou Li , Truiani Li

In this paper, we present a Generative Adversarial Network (GAN) machine learning model to interpolate irregularly distributed measurements across the spatial domain to construct a smooth radio frequency map (RFMap) and then perform…

机器学习 · 计算机科学 2021-11-25 Kuldeep S. Gill , Son Nguyen , Myo M. Thein , Alexander M. Wyglinski

Generative adversarial networks have been able to generate striking results in various domains. This generation capability can be general while the networks gain deep understanding regarding the data distribution. In many domains, this data…

机器学习 · 计算机科学 2019-09-16 Milad Salem , Shayan Taheri , Jiann Shiun Yuan

Generating realistic 3D faces is of high importance for computer graphics and computer vision applications. Generally, research on 3D face generation revolves around linear statistical models of the facial surface. Nevertheless, these…

计算机视觉与模式识别 · 计算机科学 2022-03-28 Baris Gecer , Alexander Lattas , Stylianos Ploumpis , Jiankang Deng , Athanasios Papaioannou , Stylianos Moschoglou , Stefanos Zafeiriou

Generative adversarial networks (GANs) have been recently adopted for super-resolution, an application closely related to what is referred to as "downscaling" in the atmospheric sciences: improving the spatial resolution of low-resolution…

图像与视频处理 · 电气工程与系统科学 2021-11-12 Jussi Leinonen , Daniele Nerini , Alexis Berne

One of the most significant challenges in statistical signal processing and machine learning is how to obtain a generative model that can produce samples of large-scale data distribution, such as images and speeches. Generative Adversarial…

计算机视觉与模式识别 · 计算机科学 2020-05-28 Pegah Salehi , Abdolah Chalechale , Maryam Taghizadeh

Three-dimensional (3D) point clouds are important data representations in visualization applications. The rapidly growing utility and popularity of point cloud processing strongly motivate a plethora of research activities on large-scale…

信号处理 · 电气工程与系统科学 2021-11-24 Qinwen Deng , Songyang Zhang , Zhi Ding

In this paper, we propose an effective point cloud generation method, which can generate multi-resolution point clouds of the same shape from a latent vector. Specifically, we develop a novel progressive deconvolution network with the…

计算机视觉与模式识别 · 计算机科学 2020-07-13 Le Hui , Rui Xu , Jin Xie , Jianjun Qian , Jian Yang

We propose a higher-level associative memory for learning adversarial networks. Generative adversarial network (GAN) framework has a discriminator and a generator network. The generator (G) maps white noise (z) to data samples while the…

机器学习 · 计算机科学 2016-11-23 Tarik Arici , Asli Celikyilmaz

The learning and aggregation of multi-scale features are essential in empowering neural networks to capture the fine-grained geometric details in the point cloud upsampling task. Most existing approaches extract multi-scale features from a…

计算机视觉与模式识别 · 计算机科学 2022-06-28 Yechao Bai , Xiaogang Wang , Marcelo H. Ang , Daniela Rus

High-quality point clouds have practical significance for point-based rendering, semantic understanding, and surface reconstruction. Upsampling sparse, noisy and nonuniform point clouds for a denser and more regular approximation of target…

计算机视觉与模式识别 · 计算机科学 2022-04-25 Luqing Luo , Lulu Tang , Wanyi Zhou , Shizheng Wang , Zhi-Xin Yang

Machine learning models have been shown to be vulnerable to adversarial examples. While most of the existing methods for adversarial attack and defense work on the 2D image domain, a few recent attempts have been made to extend them to 3D…

计算机视觉与模式识别 · 计算机科学 2020-12-15 Yuxin Wen , Jiehong Lin , Ke Chen , C. L. Philip Chen , Kui Jia

Representation and generative learning, as reconstruction-based methods, have demonstrated their potential for mutual reinforcement across various domains. In the field of point cloud processing, although existing studies have adopted…

计算机视觉与模式识别 · 计算机科学 2024-08-16 Hongliang Zeng , Ping Zhang , Fang Li , Jiahua Wang , Tingyu Ye , Pengteng Guo

We propose a new approach to Generative Adversarial Networks (GANs) to achieve an improved performance with additional robustness to its so-called and well recognized mode collapse. We first proceed by mapping the desired data onto a…

计算机视觉与模式识别 · 计算机科学 2019-08-26 Shahin Mahdizadehaghdam , Ashkan Panahi , Hamid Krim

Constructing high-quality generative models for 3D shapes is a fundamental task in computer vision with diverse applications in geometry processing, engineering, and design. Despite the recent progress in deep generative modelling,…

计算机视觉与模式识别 · 计算机科学 2021-02-08 Vage Egiazarian , Savva Ignatyev , Alexey Artemov , Oleg Voynov , Andrey Kravchenko , Youyi Zheng , Luiz Velho , Evgeny Burnaev

Deep neural networks (DNNs) have been shown to be vulnerable to adversarial attacks. Recently, 3D adversarial attacks, especially adversarial attacks on point clouds, have elicited mounting interest. However, adversarial point clouds…

计算机视觉与模式识别 · 计算机科学 2022-01-27 Binbin Liu , Jinlai Zhang , Lyujie Chen , Jihong Zhu

We present the first generative adversarial network (GAN) for natural image matting. Our novel generator network is trained to predict visually appealing alphas with the addition of the adversarial loss from the discriminator that is…

计算机视觉与模式识别 · 计算机科学 2018-07-27 Sebastian Lutz , Konstantinos Amplianitis , Aljosa Smolic

The standard practice in Generative Adversarial Networks (GANs) discards the discriminator during sampling. However, this sampling method loses valuable information learned by the discriminator regarding the data distribution. In this work,…

机器学习 · 计算机科学 2019-11-25 Yuejiang Liu , Parth Kothari , Alexandre Alahi

Generating realistic graph-structured data is challenging due to discrete connectivity, varying graph sizes, and class-specific structural patterns. Recent Generative Adversarial Networks (GAN)-based graph generation methods improve edge…

机器学习 · 计算机科学 2026-05-29 James Sargant , Seyedeh Ava Razi Razavi , Renata Dividino , Sheridan Houghten

Generative adversarial network (GAN) is a framework for generating fake data using a set of real examples. However, GAN is unstable in the training stage. In order to stabilize GANs, the noise injection has been used to enlarge the overlap…

机器学习 · 计算机科学 2022-08-02 Kensuke Nakamura , Simon Korman , Byung-Woo Hong