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Images synthesized by powerful generative adversarial network (GAN) based methods have drawn moral and privacy concerns. Although image forensic models have reached great performance in detecting fake images from real ones, these models can…

Computer Vision and Pattern Recognition · Computer Science 2021-05-20 Dongze Li , Wei Wang , Hongxing Fan , Jing Dong

While Generative Adversarial Networks (GANs) are fundamental to many generative modelling applications, they suffer from numerous issues. In this work, we propose a principled framework to simultaneously mitigate two fundamental issues in…

Machine Learning · Computer Science 2020-11-24 Kwot Sin Lee , Ngoc-Trung Tran , Ngai-Man Cheung

While high fidelity and efficiency are central to the creation of digital head avatars, recent methods relying on 2D or 3D generative models often experience limitations such as shape distortion, expression inaccuracy, and identity…

Computer Vision and Pattern Recognition · Computer Science 2024-05-28 Xiaochen Zhao , Jingxiang Sun , Lizhen Wang , Jinli Suo , Yebin Liu

The advent of generative adversarial networks (GAN) has enabled new capabilities in synthesis, interpolation, and data augmentation heretofore considered very challenging. However, one of the common assumptions in most GAN architectures is…

Computer Vision and Pattern Recognition · Computer Science 2019-05-20 Rajhans Singh , Pavan Turaga , Suren Jayasuriya , Ravi Garg , Martin W. Braun

Generative adversarial networks (GANs) have demonstrated to be successful at generating realistic real-world images. In this paper we compare various GAN techniques, both supervised and unsupervised. The effects on training stability of…

Machine Learning · Computer Science 2018-03-28 Mathijs Pieters , Marco Wiering

In the majority of GAN architectures, the latent space is defined as a set of vectors of given dimensionality. Such representations are not easily interpretable and do not capture spatial information of image content directly. In this work,…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Maciej Sypetkowski

We show that pre-trained Generative Adversarial Networks (GANs) such as StyleGAN and BigGAN can be used as a latent bank to improve the performance of image super-resolution. While most existing perceptual-oriented approaches attempt to…

Computer Vision and Pattern Recognition · Computer Science 2022-08-01 Kelvin C. K. Chan , Xiangyu Xu , Xintao Wang , Jinwei Gu , Chen Change Loy

The use of accurate scanning transmission electron microscopy (STEM) image simulation methods require large computation times that can make their use infeasible for the simulation of many images. Other simulation methods based on linear…

Computer Vision and Pattern Recognition · Computer Science 2022-11-18 Nick Lawrence , Mingren Shen , Ruiqi Yin , Cloris Feng , Dane Morgan

We show that pre-trained Generative Adversarial Networks (GANs), e.g., StyleGAN, can be used as a latent bank to improve the restoration quality of large-factor image super-resolution (SR). While most existing SR approaches attempt to…

Computer Vision and Pattern Recognition · Computer Science 2020-12-02 Kelvin C. K. Chan , Xintao Wang , Xiangyu Xu , Jinwei Gu , Chen Change Loy

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…

Computer Vision and Pattern Recognition · Computer Science 2020-05-28 Pegah Salehi , Abdolah Chalechale , Maryam Taghizadeh

Despite remarkable advances in image synthesis research, existing works often fail in manipulating images under the context of large geometric transformations. Synthesizing person images conditioned on arbitrary poses is one of the most…

Computer Vision and Pattern Recognition · Computer Science 2019-01-14 Haoye Dong , Xiaodan Liang , Ke Gong , Hanjiang Lai , Jia Zhu , Jian Yin

With advances in Generative Adversarial Networks (GANs) leading to dramatically-improved synthetic images and video, there is an increased need for algorithms which extend traditional forensics to this new category of imagery. While GANs…

Computer Vision and Pattern Recognition · Computer Science 2019-06-17 Michael Albright , Scott McCloskey

Image inpainting techniques have shown promising improvement with the assistance of generative adversarial networks (GANs) recently. However, most of them often suffered from completed results with unreasonable structure or blurriness. To…

Computer Vision and Pattern Recognition · Computer Science 2020-10-06 Zheng Hui , Jie Li , Xiumei Wang , Xinbo Gao

Most existing GANs architectures that generate images use transposed convolution or resize-convolution as their upsampling algorithm from lower to higher resolution feature maps in the generator. We argue that this kind of fixed operation…

Computer Vision and Pattern Recognition · Computer Science 2018-02-08 Nhat M. Nguyen , Nilanjan Ray

Generative Adversarial Networks have surprising ability for generating sharp and realistic images, though they are known to suffer from the so-called mode collapse problem. In this paper, we propose a new GAN variant called Mixture Density…

Machine Learning · Computer Science 2018-11-30 Hamid Eghbal-zadeh , Werner Zellinger , Gerhard Widmer

Convolutional Neural Networks (CNNs) can play a key role in Medical Image Analysis under large-scale annotated datasets. However, preparing such massive dataset is demanding. In this context, Generative Adversarial Networks (GANs) can…

Image and Video Processing · Electrical Eng. & Systems 2021-06-04 Changhee Han

Generative Adversarial Networks (GANs) typically learn a distribution of images in a large image dataset, and are then able to generate new images from this distribution. However, each natural image has its own internal statistics, captured…

Computer Vision and Pattern Recognition · Computer Science 2019-04-25 Assaf Shocher , Shai Bagon , Phillip Isola , Michal Irani

Solving inverse problems continues to be a challenge in a wide array of applications ranging from deblurring, image inpainting, source separation etc. Most existing techniques solve such inverse problems by either explicitly or implicitly…

Computer Vision and Pattern Recognition · Computer Science 2018-06-05 Rushil Anirudh , Jayaraman J. Thiagarajan , Bhavya Kailkhura , Timo Bremer

A Generative Adversarial Network (GAN) with generator $G$ trained to model the prior of images has been shown to perform better than sparsity-based regularizers in ill-posed inverse problems. Here, we propose a new method of deploying a…

Machine Learning · Computer Science 2019-10-25 Ankit Raj , Yuqi Li , Yoram Bresler

We propose a generative framework based on generative adversarial network (GAN) to enhance facial attractiveness while preserving facial identity and high-fidelity. Given a portrait image as input, having applied gradient descent to recover…

Computer Vision and Pattern Recognition · Computer Science 2020-06-05 Yuhongze Zhou , Qinjie Xiao