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Building a large image dataset with high-quality object masks for semantic segmentation is costly and time consuming. In this paper, we introduce a principled semi-supervised framework that only uses a small set of fully supervised images…

Computer Vision and Pattern Recognition · Computer Science 2020-02-27 Mostafa S. Ibrahim , Arash Vahdat , Mani Ranjbar , William G. Macready

We address the unsupervised learning of several interconnected problems in low-level vision: single view depth prediction, camera motion estimation, optical flow, and segmentation of a video into the static scene and moving regions. Our key…

Computer Vision and Pattern Recognition · Computer Science 2019-03-13 Anurag Ranjan , Varun Jampani , Lukas Balles , Kihwan Kim , Deqing Sun , Jonas Wulff , Michael J. Black

Unsupervised image-to-image translation is a class of computer vision problems which aims at modeling conditional distribution of images in the target domain, given a set of unpaired images in the source and target domains. An image in the…

Computer Vision and Pattern Recognition · Computer Science 2018-11-30 Hadi Kazemi , Sobhan Soleymani , Fariborz Taherkhani , Seyed Mehdi Iranmanesh , Nasser M. Nasrabadi

Recently developed deep learning models are able to learn to segment scenes into component objects without supervision. This opens many new and exciting avenues of research, allowing agents to take objects (or entities) as inputs, rather…

The key challenge of image manipulation detection is how to learn generalizable features that are sensitive to manipulations in novel data, whilst specific to prevent false alarms on authentic images. Current research emphasizes the…

Computer Vision and Pattern Recognition · Computer Science 2021-07-27 Xinru Chen , Chengbo Dong , Jiaqi Ji , Juan Cao , Xirong Li

In this paper we address the uncertainty issues involved in the low-level vision task of image segmentation. Researchers in computer vision have worked extensively on this problem, in which the goal is to partition (or segment) an image…

Artificial Intelligence · Computer Science 2013-03-08 Steven M. LaValle , Seth A. Hutchinson

This paper introduces a novel approach for unsupervised object co-localization using Generative Adversarial Networks (GANs). GAN is a powerful tool that can implicitly learn unknown data distributions in an unsupervised manner. From the…

Computer Vision and Pattern Recognition · Computer Science 2018-07-10 Junsuk Choe , Joo Hyun Park , Hyunjung Shim

We propose an adversarial contextual model for detecting moving objects in images. A deep neural network is trained to predict the optical flow in a region using information from everywhere else but that region (context), while another…

Computer Vision and Pattern Recognition · Computer Science 2019-04-16 Yanchao Yang , Antonio Loquercio , Davide Scaramuzza , Stefano Soatto

Recent advances in unsupervised learning for object detection, segmentation, and tracking hold significant promise for applications in robotics. A common approach is to frame these tasks as inference in probabilistic latent-variable models.…

Robotics · Computer Science 2021-09-14 Yizhe Wu , Oiwi Parker Jones , Martin Engelcke , Ingmar Posner

Weakly supervised object detection (WSOD) using only image-level annotations has attracted growing attention over the past few years. Existing approaches using multiple instance learning easily fall into local optima, because such mechanism…

Computer Vision and Pattern Recognition · Computer Science 2020-02-05 Chenhao Lin , Siwen Wang , Dongqi Xu , Yu Lu , Wayne Zhang

Understanding 3D object shapes necessitates shape representation by object parts abstracted from results of instance and semantic segmentation. Promising shape representations enable computers to interpret a shape with meaningful parts and…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Jiaxin Li , Hongxing Wang , Jiawei Tan , Zhilong Ou , Junsong Yuan

Unsupervised video object segmentation aims to segment the most prominent object in a video sequence. However, the existence of complex backgrounds and multiple foreground objects make this task challenging. To address this issue, we…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Minhyeok Lee , Suhwan Cho , Dogyoon Lee , Chaewon Park , Jungho Lee , Sangyoun Lee

We describe an unsupervised method to detect and segment portions of images of live scenes that, at some point in time, are seen moving as a coherent whole, which we refer to as objects. Our method first partitions the motion field by…

Computer Vision and Pattern Recognition · Computer Science 2021-04-06 Yanchao Yang , Brian Lai , Stefano Soatto

We address the problem of localisation of objects as bounding boxes in images with weak labels. This weakly supervised object localisation problem has been tackled in the past using discriminative models where each object class is localised…

Computer Vision and Pattern Recognition · Computer Science 2017-05-10 Zhiyuan Shi , Timothy M. Hospedales , Tao Xiang

Image segmentation is a central topic in image processing and computer vision and a key issue in many applications, e.g., in medical imaging, microscopy, document analysis and remote sensing. According to the human perception, image…

Numerical Analysis · Mathematics 2022-06-24 Laura Antonelli , Valentina De Simone , Daniela di Serafino

Transparent objects such as windows and bottles made by glass widely exist in the real world. Segmenting transparent objects is challenging because these objects have diverse appearance inherited from the image background, making them had…

Computer Vision and Pattern Recognition · Computer Science 2020-08-04 Enze Xie , Wenjia Wang , Wenhai Wang , Mingyu Ding , Chunhua Shen , Ping Luo

Current unsupervised anomaly localization approaches rely on generative models to learn the distribution of normal images, which is later used to identify potential anomalous regions derived from errors on the reconstructed images. However,…

Image and Video Processing · Electrical Eng. & Systems 2021-10-29 Julio Silva-Rodríguez , Valery Naranjo , Jose Dolz

We are interested in inferring object segmentation by leveraging only object class information, and by considering only minimal priors on the object segmentation task. This problem could be viewed as a kind of weakly supervised segmentation…

Computer Vision and Pattern Recognition · Computer Science 2015-04-27 Pedro O. Pinheiro , Ronan Collobert

Estimating the pose of objects from images is a crucial task of 3D scene understanding, and recent approaches have shown promising results on very large benchmarks. However, these methods experience a significant performance drop when…

Computer Vision and Pattern Recognition · Computer Science 2024-10-21 Tianfu Wang , Guosheng Hu , Hongguang Wang

The accelerating advancement of generative models has introduced new challenges for detecting AI-generated images, especially in real-world scenarios where novel generation techniques emerge rapidly. Existing learning paradigms are likely…

Computer Vision and Pattern Recognition · Computer Science 2026-03-30 Qinghui He , Haifeng Zhang , Xiuli Bi , Bo Liu , Chi-Man Pun , Bin Xiao