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Generative Adversarial Networks (GANs) have been widely applied in modeling diverse image distributions. However, despite its impressive applications, the structure of the latent space in GANs largely remains as a black-box, leaving its…

Computer Vision and Pattern Recognition · Computer Science 2022-09-05 Zikun Chen , Ruowei Jiang , Brendan Duke , Han Zhao , Parham Aarabi

Generative Adversarial Networks (GANs) advance face synthesis through learning the underlying distribution of observed data. Despite the high-quality generated faces, some minority groups can be rarely generated from the trained models due…

Computer Vision and Pattern Recognition · Computer Science 2021-03-30 Shuhan Tan , Yujun Shen , Bolei Zhou

In recent years generative models of visual data have made a great progress, and now they are able to produce images of high quality and diversity. In this work we study representations learnt by a GAN generator. First, we show that these…

Computer Vision and Pattern Recognition · Computer Science 2020-06-19 Danil Galeev , Konstantin Sofiiuk , Danila Rukhovich , Mikhail Romanov , Olga Barinova , Anton Konushin

We address an essential problem in computer vision, that of unsupervised object segmentation in video, where a main object of interest in a video sequence should be automatically separated from its background. An efficient solution to this…

Computer Vision and Pattern Recognition · Computer Science 2017-04-20 Emanuela Haller , Marius Leordeanu

We develop and approach to unsupervised semantic medical image segmentation that extends previous work with generative adversarial networks. We use existing edge detection methods to construct simple edge diagrams, train a generative model…

Image and Video Processing · Electrical Eng. & Systems 2019-11-14 Umaseh Sivanesan , Luis H. Braga , Ranil R. Sonnadara , Kiret Dhindsa

As recent generative models can generate photo-realistic images, people seek to understand the mechanism behind the generation process. Interpretable generation process is beneficial to various image editing applications. In this work, we…

Computer Vision and Pattern Recognition · Computer Science 2020-12-01 Yu-Ding Lu , Hsin-Ying Lee , Hung-Yu Tseng , Ming-Hsuan Yang

Deep convolutional neural networks (CNNs) have demonstrated remarkable success in computer vision by supervisedly learning strong visual feature representations. However, training CNNs relies heavily on the availability of exhaustive…

Computer Vision and Pattern Recognition · Computer Science 2019-05-31 Jiabo Huang , Qi Dong , Shaogang Gong , Xiatian Zhu

We propose a new approach to learn to segment multiple image objects without manual supervision. The method can extract objects form still images, but uses videos for supervision. While prior works have considered motion for segmentation, a…

Computer Vision and Pattern Recognition · Computer Science 2022-10-24 Laurynas Karazija , Subhabrata Choudhury , Iro Laina , Christian Rupprecht , Andrea Vedaldi

Self-supervised detection and segmentation of foreground objects aims for accuracy without annotated training data. However, existing approaches predominantly rely on restrictive assumptions on appearance and motion. For scenes with dynamic…

Computer Vision and Pattern Recognition · Computer Science 2021-08-20 Isinsu Katircioglu , Helge Rhodin , Jörg Spörri , Mathieu Salzmann , Pascal Fua

We introduce a method that allows to automatically segment images into semantically meaningful regions without human supervision. Derived regions are consistent across different images and coincide with human-defined semantic classes on…

Computer Vision and Pattern Recognition · Computer Science 2021-11-22 Daniil Pakhomov , Sanchit Hira , Narayani Wagle , Kemar E. Green , Nassir Navab

Unsupervised learning from visual data is one of the most difficult challenges in computer vision, being a fundamental task for understanding how visual recognition works. From a practical point of view, learning from unsupervised visual…

Computer Vision and Pattern Recognition · Computer Science 2017-04-03 Ioana Croitoru , Simion-Vlad Bogolin , Marius Leordeanu

This paper introduces an unsupervised framework to extract semantically rich features for video representation. Inspired by how the human visual system groups objects based on motion cues, we propose a deep convolutional neural network that…

Computer Vision and Pattern Recognition · Computer Science 2017-07-18 Xunyu Lin , Victor Campos , Xavier Giro-i-Nieto , Jordi Torres , Cristian Canton Ferrer

Reflections often degrade the quality of the image by obstructing the background scene. This is not desirable for everyday users, and it negatively impacts the performance of multimedia applications that process images with reflections.…

Computer Vision and Pattern Recognition · Computer Science 2020-09-03 Suhong Kim , Hamed RahmaniKhezri , Seyed Mohammad Nourbakhsh , Mohamed Hefeeda

Existing deep learning based unsupervised video object segmentation methods still rely on ground-truth segmentation masks to train. Unsupervised in this context only means that no annotated frames are used during inference. As obtaining…

Computer Vision and Pattern Recognition · Computer Science 2021-11-30 Sahir Shrestha , Mohammad Ali Armin , Hongdong Li , Nick Barnes

With the recent progress in Generative Adversarial Networks (GANs), it is imperative for media and visual forensics to develop detectors which can identify and attribute images to the model generating them. Existing works have shown to…

Computer Vision and Pattern Recognition · Computer Science 2021-09-22 Sharath Girish , Saksham Suri , Saketh Rambhatla , Abhinav Shrivastava

As a computer vision task, automatic object segmentation remains challenging in specialized image domains without massive labeled data, such as synthetic aperture sonar images, remote sensing, biomedical imaging, etc. In any domain,…

Computer Vision and Pattern Recognition · Computer Science 2025-11-05 Hassan Baker , Matthew S. Emigh , Austin J. Brockmeier

We present an unsupervised deep learning method for text line segmentation that is inspired by the relative variance between text lines and spaces among text lines. Handwritten text line segmentation is important for the efficiency of…

Computer Vision and Pattern Recognition · Computer Science 2020-10-27 Berat Kurar Barakat , Ahmad Droby , Rym Alasam , Boraq Madi , Irina Rabaev , Raed Shammes , Jihad El-Sana

Unsupervised image segmentation aims at grouping different semantic patterns in an image without the use of human annotation. Similarly, image clustering searches for groupings of images based on their semantic content without supervision.…

Computer Vision and Pattern Recognition · Computer Science 2024-01-18 Isaac Wasserman , Jeova Farias Sales Rocha Neto

Unsupervised localization and segmentation are long-standing computer vision challenges that involve decomposing an image into semantically-meaningful segments without any labeled data. These tasks are particularly interesting in an…

Computer Vision and Pattern Recognition · Computer Science 2022-05-17 Luke Melas-Kyriazi , Christian Rupprecht , Iro Laina , Andrea Vedaldi

We present variational generative adversarial networks, a general learning framework that combines a variational auto-encoder with a generative adversarial network, for synthesizing images in fine-grained categories, such as faces of a…

Computer Vision and Pattern Recognition · Computer Science 2018-02-06 Jianmin Bao , Dong Chen , Fang Wen , Houqiang Li , Gang Hua