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Related papers: Self-supervising Action Recognition by Statistical…

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This paper proposes a simple yet effective method for human action recognition in video. The proposed method separately extracts local appearance and motion features using state-of-the-art three-dimensional convolutional neural networks…

Computer Vision and Pattern Recognition · Computer Science 2020-02-24 David Torpey , Turgay Celik

In this paper, we address the detection of co-occurring salient objects (CoSOD) in an image group using frequency statistics in an unsupervised manner, which further enable us to develop a semi-supervised method. While previous works have…

Computer Vision and Pattern Recognition · Computer Science 2023-11-14 Souradeep Chakraborty , Shujon Naha , Muhammet Bastan , Amit Kumar K C , Dimitris Samaras

Temporal Activity Detection aims to predict activity classes per frame, in contrast to video-level predictions in Activity Classification (i.e., Activity Recognition). Due to the expensive frame-level annotations required for detection, the…

Computer Vision and Pattern Recognition · Computer Science 2023-02-07 Kumara Kahatapitiya , Zhou Ren , Haoxiang Li , Zhenyu Wu , Michael S. Ryoo , Gang Hua

Correspondence estimation is one of the most widely researched and yet only partially solved area of computer vision with many applications in tracking, mapping, recognition of objects and environment. In this paper, we propose a novel way…

Computer Vision and Pattern Recognition · Computer Science 2020-04-16 Umashankar Deekshith , Nishit Gajjar , Max Schwarz , Sven Behnke

The paradigm of self-supervision focuses on representation learning from raw data without the need of labor-consuming annotations, which is the main bottleneck of current data-driven methods. Self-supervision tasks are often used to…

Computer Vision and Pattern Recognition · Computer Science 2023-07-06 Shuai Chen , Subhradeep Kayal , Marleen de Bruijne

Our objective is to transform a video into a set of discrete audio-visual objects using self-supervised learning. To this end, we introduce a model that uses attention to localize and group sound sources, and optical flow to aggregate…

Computer Vision and Pattern Recognition · Computer Science 2020-08-11 Triantafyllos Afouras , Andrew Owens , Joon Son Chung , Andrew Zisserman

In this paper, we propose a novel learning scheme for self-supervised video representation learning. Motivated by how humans understand videos, we propose to first learn general visual concepts then attend to discriminative local areas for…

Computer Vision and Pattern Recognition · Computer Science 2022-07-27 Rui Qian , Shuangrui Ding , Xian Liu , Dahua Lin

High resolution satellite image sequences are multidimensional signals composed of spatio-temporal patterns associated to numerous and various phenomena. Bayesian methods have been previously proposed in (Heas and Datcu, 2005) to code the…

Computer Vision and Pattern Recognition · Computer Science 2007-09-20 Patrick Héas , Mihai Datcu

Existing CNNs-Based RGB-D salient object detection (SOD) networks are all required to be pretrained on the ImageNet to learn the hierarchy features which helps provide a good initialization. However, the collection and annotation of…

Computer Vision and Pattern Recognition · Computer Science 2021-12-06 Xiaoqi Zhao , Youwei Pang , Lihe Zhang , Huchuan Lu , Xiang Ruan

This paper introduces a new algorithm for unsupervised learning of keypoint detectors and descriptors, which demonstrates fast convergence and good performance across different datasets. The training procedure uses homographic…

Computer Vision and Pattern Recognition · Computer Science 2020-06-02 Anatoly Belikov , Alexey Potapov

Spatial reasoning on multi-view line drawings by state-of-the-art supervised deep networks is recently shown with puzzling low performances on the SPARE3D dataset. Based on the fact that self-supervised learning is helpful when a large…

Computer Vision and Pattern Recognition · Computer Science 2022-05-17 Siyuan Xiang , Anbang Yang , Yanfei Xue , Yaoqing Yang , Chen Feng

We introduce a novel framework to track multiple objects in overhead camera videos for airport checkpoint security scenarios where targets correspond to passengers and their baggage items. We propose a self-supervised learning (SSL)…

Computer Vision and Pattern Recognition · Computer Science 2024-03-13 Abubakar Siddique , Henry Medeiros

Modern self-supervised learning algorithms typically enforce persistency of instance representations across views. While being very effective on learning holistic image and video representations, such an objective becomes sub-optimal for…

Computer Vision and Pattern Recognition · Computer Science 2022-04-05 Liangzhe Yuan , Rui Qian , Yin Cui , Boqing Gong , Florian Schroff , Ming-Hsuan Yang , Hartwig Adam , Ting Liu

This paper addresses the task of unsupervised learning of representations for action recognition in videos. Previous works proposed to utilize future prediction, or other domain-specific objectives to train a network, but achieved only…

Computer Vision and Pattern Recognition · Computer Science 2020-06-30 Pavel Tokmakov , Martial Hebert , Cordelia Schmid

Salient object detection segments attractive objects in scenes. RGB and thermal modalities provide complementary information and scribble annotations alleviate large amounts of human labor. Based on the above facts, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2023-03-20 Zhengyi Liu , Xiaoshen Huang , Guanghui Zhang , Xianyong Fang , Linbo Wang , Bin Tang

Action recognition in videos has attracted a lot of attention in the past decade. In order to learn robust models, previous methods usually assume videos are trimmed as short sequences and require ground-truth annotations of each video…

Computer Vision and Pattern Recognition · Computer Science 2019-02-21 Xiao-Yu Zhang , Haichao Shi , Changsheng Li , Kai Zheng , Xiaobin Zhu , Lixin Duan

As a domain-specific super-resolution problem, facial image hallucination has enjoyed a series of breakthroughs thanks to the advances of deep convolutional neural networks. However, the direct migration of existing methods to video is…

Computer Vision and Pattern Recognition · Computer Science 2020-02-19 Chaowei Fang , Guanbin Li , Xiaoguang Han , Yizhou Yu

In the recent years, convolutional neural networks have transformed the field of medical image analysis due to their capacity to learn discriminative image features for a variety of classification and regression tasks. However, successfully…

Computer Vision and Pattern Recognition · Computer Science 2019-07-08 Wenjia Bai , Chen Chen , Giacomo Tarroni , Jinming Duan , Florian Guitton , Steffen E. Petersen , Yike Guo , Paul M. Matthews , Daniel Rueckert

Enabling computational systems with the ability to localize actions in video-based content has manifold applications. Traditionally, such a problem is approached in a fully-supervised setting where video-clips with complete frame-by-frame…

Computer Vision and Pattern Recognition · Computer Science 2019-05-07 Kurt Degiorgio , Fabio Cuzzolin

Salient object detection aims at detecting the most visually distinct objects and producing the corresponding masks. As the cost of pixel-level annotations is high, image tags are usually used as weak supervisions. However, an image tag can…

Computer Vision and Pattern Recognition · Computer Science 2021-01-05 Xiaoyang Zheng , Xin Tan , Jie Zhou , Lizhuang Ma , Rynson W. H. Lau