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Although deep learning based methods have achieved great progress in unsupervised video object segmentation, difficult scenarios (e.g., visual similarity, occlusions, and appearance changing) are still not well-handled. To alleviate these…

Computer Vision and Pattern Recognition · Computer Science 2020-12-07 Daizong Liu , Dongdong Yu , Changhu Wang , Pan Zhou

Neural networks for image classification tasks assume that any given image during inference belongs to one of the training classes. This closed-set assumption is challenged in real-world applications where models may encounter inputs of…

Computer Vision and Pattern Recognition · Computer Science 2022-06-17 Jinsol Lee , Ghassan AlRegib

Correlation acts as a critical role in the tracking field, especially in recent popular Siamese-based trackers. The correlation operation is a simple fusion manner to consider the similarity between the template and the search region.…

Computer Vision and Pattern Recognition · Computer Science 2021-03-30 Xin Chen , Bin Yan , Jiawen Zhu , Dong Wang , Xiaoyun Yang , Huchuan Lu

Object tracking is one of the fundamental problems in visual recognition tasks and has achieved significant improvements in recent years. The achievements often come with the price of enormous hardware consumption and expensive labor effort…

Computer Vision and Pattern Recognition · Computer Science 2022-05-06 Yan Shen , Zhanghexuan Ji , Chunwei Ma , Mingchen Gao

Visual object tracking is a fundamental task in the field of computer vision. Recently, Siamese trackers have achieved state-of-the-art performance on recent benchmarks. However, Siamese trackers do not fully utilize semantic and objectness…

Computer Vision and Pattern Recognition · Computer Science 2019-08-22 Mohamed H. Abdelpakey , Mohamed S. Shehata

This paper presents a novel technique based on gradient boosting to train the final layers of a neural network (NN). Gradient boosting is an additive expansion algorithm in which a series of models are trained sequentially to approximate a…

Machine Learning · Computer Science 2023-05-05 Seyedsaman Emami , Gonzalo Martínez-Muñoz

We investigate the problem of agent-to-agent interaction in decentralized (federated) learning over time-varying directed graphs, and, in doing so, propose a consensus-based algorithm called DSGTm-TV. The proposed algorithm incorporates…

Optimization and Control · Mathematics 2024-09-27 Duong Thuy Anh Nguyen , Su Wang , Duong Tung Nguyen , Angelia Nedich , H. Vincent Poor

Interpreting gradient methods as fixed-point iterations, we provide a detailed analysis of those methods for minimizing convex objective functions. Due to their conceptual and algorithmic simplicity, gradient methods are widely used in…

Machine Learning · Statistics 2017-08-16 Alexander Jung

Being able to track an anonymous object, a model-free tracker is comprehensively applicable regardless of the target type. However, designing such a generalized framework is challenged by the lack of object-oriented prior information. As…

Computer Vision and Pattern Recognition · Computer Science 2018-12-18 Xiaolong Jiang , Peizhao Li , Xiantong Zhen , Xianbin Cao

A convolutional neural network (ConvNet) is usually trained and then tested using images drawn from the same distribution. To generalize a ConvNet to various tasks often requires a complete training dataset that consists of images drawn…

Computer Vision and Pattern Recognition · Computer Science 2021-10-01 Junyu Chen , Evren Asma , Chung Chan

Siamese-based trackers have achived promising performance on visual object tracking tasks. Most existing Siamese-based trackers contain two separate branches for tracking, including classification branch and bounding box regression branch.…

Computer Vision and Pattern Recognition · Computer Science 2022-01-06 Fei Chen , Fuhan Zhang , Xiaodong Wang

In this paper, we investigate the impacts of three main aspects of visual tracking, i.e., the backbone network, the attentional mechanism, and the detection component, and propose a Siamese Attentional Keypoint Network, dubbed SATIN, for…

Computer Vision and Pattern Recognition · Computer Science 2020-01-01 Peng Gao , Ruyue Yuan , Fei Wang , Liyi Xiao , Hamido Fujita , Yan Zhang

Accurate and robust visual object tracking is one of the most challenging and fundamental computer vision problems. It entails estimating the trajectory of the target in an image sequence, given only its initial location, and segmentation,…

Computer Vision and Pattern Recognition · Computer Science 2021-12-07 Sajid Javed , Martin Danelljan , Fahad Shahbaz Khan , Muhammad Haris Khan , Michael Felsberg , Jiri Matas

In this paper the research on optimisation of visual object tracking using a Siamese neural network for embedded vision systems is presented. It was assumed that the solution shall operate in real-time, preferably for a high resolution…

Computer Vision and Pattern Recognition · Computer Science 2021-03-30 Dominika Przewlocka , Mateusz Wasala , Hubert Szolc , Krzysztof Blachut , Tomasz Kryjak

We address the challenging problem of deep representation learning--the efficient adaption of a pre-trained deep network to different tasks. Specifically, we propose to explore gradient-based features. These features are gradients of the…

Machine Learning · Computer Science 2020-04-14 Fangzhou Mu , Yingyu Liang , Yin Li

Visual patterns represent the discernible regularity in the visual world. They capture the essential nature of visual objects or scenes. Understanding and modeling visual patterns is a fundamental problem in visual recognition that has wide…

Computer Vision and Pattern Recognition · Computer Science 2018-06-15 Hongzhi Li , Joseph G. Ellis , Lei Zhang , Shih-Fu Chang

Siamese trackers have recently achieved interesting results due to their balance between accuracy and speed. This success is mainly due to the fact that deep similarity networks were specifically designed to address the image similarity…

Computer Vision and Pattern Recognition · Computer Science 2021-03-02 Zhenxi Li , Guillaume-Alexandre Bilodeau , Wassim Bouachir

Siamese tracking has achieved groundbreaking performance in recent years, where the essence is the efficient matching operator cross-correlation and its variants. Besides the remarkable success, it is important to note that the heuristic…

Computer Vision and Pattern Recognition · Computer Science 2021-08-03 Zhipeng Zhang , Yihao Liu , Xiao Wang , Bing Li , Weiming Hu

Siamese-network-based self-supervised learning (SSL) suffers from slow convergence and instability in training. To alleviate this, we propose a framework to exploit intermediate self-supervisions in each stage of deep nets, called the…

Computer Vision and Pattern Recognition · Computer Science 2022-11-28 Ryota Yoshihashi , Shuhei Nishimura , Dai Yonebayashi , Yuya Otsuka , Tomohiro Tanaka , Takashi Miyazaki

Current methods aggregate multi-level features or introduce edge and skeleton to get more refined saliency maps. However, little attention is paid to how to obtain the complete salient object in cluttered background, where the targets are…

Computer Vision and Pattern Recognition · Computer Science 2023-01-19 Ge Zhu , Jinbao Li , Yahong Guo