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In video surveillance, person re-identification is the task of searching person images in non-overlapping cameras. Though supervised methods for person re-identification have attained impressive performance, obtaining large scale cross-view…

Computer Vision and Pattern Recognition · Computer Science 2019-10-10 T M Feroz Ali , Subhasis Chaudhuri

We propose Cut-and-LEaRn (CutLER), a simple approach for training unsupervised object detection and segmentation models. We leverage the property of self-supervised models to 'discover' objects without supervision and amplify it to train a…

Computer Vision and Pattern Recognition · Computer Science 2023-01-27 Xudong Wang , Rohit Girdhar , Stella X. Yu , Ishan Misra

Though quite challenging, leveraging large-scale unlabeled or partially labeled images in a cost-effective way has increasingly attracted interests for its great importance to computer vision. To tackle this problem, many Active Learning…

Computer Vision and Pattern Recognition · Computer Science 2018-05-25 Keze Wang , Xiaopeng Yan , Dongyu Zhang , Lei Zhang , Liang Lin

This paper proposes a novel paradigm for the unsupervised learning of object landmark detectors. Contrary to existing methods that build on auxiliary tasks such as image generation or equivariance, we propose a self-training approach where,…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Dimitrios Mallis , Enrique Sanchez , Matt Bell , Georgios Tzimiropoulos

Detecting carried objects is one of the requirements for developing systems to reason about activities involving people and objects. We present an approach to detect carried objects from a single video frame with a novel method that…

Computer Vision and Pattern Recognition · Computer Science 2018-01-12 Farnoosh Ghadiri , Robert Bergevin , Guillaume-Alexandre Bilodeau

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

Patch-level image representation is very important for object classification and detection, since it is robust to spatial transformation, scale variation, and cluttered background. Many existing methods usually require fine-grained…

Computer Vision and Pattern Recognition · Computer Science 2017-05-09 Peng Tang , Xinggang Wang , Zilong Huang , Xiang Bai , Wenyu Liu

There have been a fairly of research interests in exploring the disentanglement of appearance and shape from human images. Most existing endeavours pursuit this goal by either using training images with annotations or regulating the…

Computer Vision and Pattern Recognition · Computer Science 2020-07-31 Hongtao Yang , Tong Zhang , Wenbing Huang , Xuming He , Fatih Porikli

Being able to learn dense semantic representations of images without supervision is an important problem in computer vision. However, despite its significance, this problem remains rather unexplored, with a few exceptions that considered…

Computer Vision and Pattern Recognition · Computer Science 2021-08-04 Wouter Van Gansbeke , Simon Vandenhende , Stamatios Georgoulis , Luc Van Gool

Unlike traditional third-person cameras mounted on robots, a first-person camera, captures a person's visual sensorimotor object interactions from up close. In this paper, we study the tight interplay between our momentary visual attention…

Computer Vision and Pattern Recognition · Computer Science 2017-06-13 Gedas Bertasius , Hyun Soo Park , Stella X. Yu , Jianbo Shi

Understanding the 3D world without supervision is currently a major challenge in computer vision as the annotations required to supervise deep networks for tasks in this domain are expensive to obtain on a large scale. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2022-12-02 Octave Mariotti , Oisin Mac Aodha , Hakan Bilen

The advancement of visual tracking has continuously been brought by deep learning models. Typically, supervised learning is employed to train these models with expensive labeled data. In order to reduce the workload of manual annotations…

Computer Vision and Pattern Recognition · Computer Science 2020-07-24 Ning Wang , Wengang Zhou , Yibing Song , Chao Ma , Wei Liu , Houqiang Li

In this paper, we propose to learn an Unsupervised Single Object Tracker (USOT) from scratch. We identify that three major challenges, i.e., moving object discovery, rich temporal variation exploitation, and online update, are the central…

Computer Vision and Pattern Recognition · Computer Science 2021-08-31 Jilai Zheng , Chao Ma , Houwen Peng , Xiaokang Yang

This paper addresses the problem of automatically localizing dominant objects as spatio-temporal tubes in a noisy collection of videos with minimal or even no supervision. We formulate the problem as a combination of two complementary…

Computer Vision and Pattern Recognition · Computer Science 2015-05-15 Suha Kwak , Minsu Cho , Ivan Laptev , Jean Ponce , Cordelia Schmid

While metric learning is important for Person re-identification (RE-ID), a significant problem in visual surveillance for cross-view pedestrian matching, existing metric models for RE-ID are mostly based on supervised learning that requires…

Computer Vision and Pattern Recognition · Computer Science 2017-10-19 Hong-Xing Yu , Ancong Wu , Wei-Shi Zheng

Neural net classifiers trained on data with annotated class labels can also capture apparent visual similarity among categories without being directed to do so. We study whether this observation can be extended beyond the conventional…

Computer Vision and Pattern Recognition · Computer Science 2018-05-08 Zhirong Wu , Yuanjun Xiong , Stella Yu , Dahua Lin

Object Permanence allows people to reason about the location of non-visible objects, by understanding that they continue to exist even when not perceived directly. Object Permanence is critical for building a model of the world, since…

Computer Vision and Pattern Recognition · Computer Science 2020-07-17 Aviv Shamsian , Ofri Kleinfeld , Amir Globerson , Gal Chechik

The original problem of supervised classification considers the task of automatically assigning objects to their respective classes on the basis of numerical measurements derived from these objects. Classifiers are the tools that implement…

Machine Learning · Computer Science 2017-10-26 Marco Loog

Semantic segmentation is a crucial step in many Earth observation tasks. Large quantity of pixel-level annotation is required to train deep networks for semantic segmentation. Earth observation techniques are applied to varieties of…

Computer Vision and Pattern Recognition · Computer Science 2021-08-11 Sudipan Saha , Lichao Mou , Muhammad Shahzad , Xiao Xiang Zhu

In this paper, we present an approach for learning a visual representation from the raw spatiotemporal signals in videos. Our representation is learned without supervision from semantic labels. We formulate our method as an unsupervised…

Computer Vision and Pattern Recognition · Computer Science 2016-07-27 Ishan Misra , C. Lawrence Zitnick , Martial Hebert