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Supervised learning models are typically trained on a single dataset and the performance of these models rely heavily on the size of the dataset, i.e., amount of data available with the ground truth. Learning algorithms try to generalize…

计算与语言 · 计算机科学 2018-02-19 Somnath Basu Roy Chowdhury , K M Annervaz , Ambedkar Dukkipati

Feature representation via self-supervised learning has reached remarkable success in image-level contrastive learning, which brings impressive performances on image classification tasks. While image-level feature representation mainly…

计算机视觉与模式识别 · 计算机科学 2022-03-16 Junwei Yang , Ke Zhang , Zhaolin Cui , Jinming Su , Junfeng Luo , Xiaolin Wei

The performance of instance search depends heavily on the ability to locate and describe a wide variety of object instances in a video/image collection. Due to the lack of proper mechanism in locating instances and deriving feature…

计算机视觉与模式识别 · 计算机科学 2020-03-24 Hui-Chu Xiao , Wan-Lei Zhao , Jie Lin , Chong-Wah Ngo

This paper proposes inverse feature learning as a novel supervised feature learning technique that learns a set of high-level features for classification based on an error representation approach. The key contribution of this method is to…

机器学习 · 计算机科学 2020-03-10 Behzad Ghazanfari , Fatemeh Afghah , MohammadTaghi Hajiaghayi

Instance-level recognition (ILR) focuses on identifying individual objects rather than broad categories, offering the highest granularity in image classification. However, this fine-grained nature makes creating large-scale annotated…

计算机视觉与模式识别 · 计算机科学 2025-10-13 Yankun Wu , Zakaria Laskar , Giorgos Kordopatis-Zilos , Noa Garcia , Giorgos Tolias

Over the last decades, hand-crafted feature extractors have been used to encode image visual properties into feature vectors. Recently, data-driven feature learning approaches have been successfully explored as alternatives for producing…

计算机视觉与模式识别 · 计算机科学 2020-11-25 Érico M. Pereira , Ricardo da S. Torres , Jefersson A. dos Santos

Despite the great success of the deep features in content-based image retrieval, the visual instance search remains challenging due to the lack of effective instance-level feature representation. Supervised or weakly supervised object…

计算机视觉与模式识别 · 计算机科学 2025-11-04 Qi-Ying Sun , Wan-Lei Zhao , Hui-Ying Xie , Yi-Bo Miao , Chong-Wah Ngo

Image retargeting aims to alter the size of the image with attention to the contents. One of the main obstacles to training deep learning models for image retargeting is the need for a vast labeled dataset. Labeled datasets are unavailable…

计算机视觉与模式识别 · 计算机科学 2023-06-14 MohammadHossein Givkashi , MohammadReza Naderi , Nader Karimi , Shahram Shirani , Shadrokh Samavi

Intrinsic image decomposition, which is an essential task in computer vision, aims to infer the reflectance and shading of the scene. It is challenging since it needs to separate one image into two components. To tackle this, conventional…

计算机视觉与模式识别 · 计算机科学 2020-05-28 Yunfei Liu , Yu Li , Shaodi You , Feng Lu

Self-supervised learning algorithms (SSL) based on instance discrimination have shown promising results, performing competitively or even outperforming supervised learning counterparts in some downstream tasks. Such approaches employ data…

计算机视觉与模式识别 · 计算机科学 2025-05-01 Mohammad Alkhalefi , Georgios Leontidis , Mingjun Zhong

In this study, we show that landmark detection or face alignment task is not a single and independent problem. Instead, its robustness can be greatly improved with auxiliary information. Specifically, we jointly optimize landmark detection…

计算机视觉与模式识别 · 计算机科学 2016-11-15 Zhanpeng Zhang , Ping Luo , Chen Change Loy , Xiaoou Tang

We consider the problem of comparing the similarity of image sets with variable-quantity, quality and un-ordered heterogeneous images. We use feature restructuring to exploit the correlations of both inner$\&$inter-set images. Specifically,…

计算机视觉与模式识别 · 计算机科学 2019-08-06 Xiaofeng Liu , Zhenhua Guo , Site Li , Lingsheng Kong , Ping Jia , Jane You , B. V. K. Kumar

The goal of this paper is to retrieve an image based on instance, attribute and category similarity notions. Different from existing works, which usually address only one of these entities in isolation, we introduce a cooperative embedding…

计算机视觉与模式识别 · 计算机科学 2019-04-03 William Thong , Cees G. M. Snoek , Arnold W. M. Smeulders

Feature transformation aims to extract a good representation (feature) space by mathematically transforming existing features. It is crucial to address the curse of dimensionality, enhance model generalization, overcome data sparsity, and…

机器学习 · 计算机科学 2022-12-26 Meng Xiao , Dongjie Wang , Min Wu , Kunpeng Liu , Hui Xiong , Yuanchun Zhou , Yanjie Fu

Generative Adversarial Networks (GANs) have significantly advanced image synthesis, however, the synthesis quality drops significantly given a limited amount of training data. To improve the data efficiency of GAN training, prior work…

计算机视觉与模式识别 · 计算机科学 2021-06-09 Ceyuan Yang , Yujun Shen , Yinghao Xu , Bolei Zhou

Image classification models tend to make decisions based on peripheral attributes of data items that have strong correlation with a target variable (i.e., dataset bias). These biased models suffer from the poor generalization capability…

机器学习 · 计算机科学 2021-10-26 Jungsoo Lee , Eungyeup Kim , Juyoung Lee , Jihyeon Lee , Jaegul Choo

Instance-level image retrieval is the task of searching in a large database for images that match an object in a query image. To address this task, systems usually rely on a retrieval step that uses global image descriptors, and a…

计算机视觉与模式识别 · 计算机科学 2022-06-07 Fuwen Tan , Jiangbo Yuan , Vicente Ordonez

Image instance retrieval is the problem of retrieving images from a database which contain the same object. Convolutional Neural Network (CNN) based descriptors are becoming the dominant approach for generating {\it global image…

计算机视觉与模式识别 · 计算机科学 2017-01-19 Vijay Chandrasekhar , Jie Lin , Qianli Liao , Olivier Morère , Antoine Veillard , Lingyu Duan , Tomaso Poggio

We introduce the first work to tackle the image retrieval problem as a continuous operation. While the proposed approaches in the literature can be roughly categorized into two main groups: category- and instance-based retrieval, in this…

计算机视觉与模式识别 · 计算机科学 2019-04-02 Ziad Al-Halah , Andreas M. Lehrmann , Leonid Sigal

Many approaches have been proposed to use diffusion models to augment training datasets for downstream tasks, such as classification. However, diffusion models are themselves trained on large datasets, often with noisy annotations, and it…

计算机视觉与模式识别 · 计算机科学 2023-12-01 Max F. Burg , Florian Wenzel , Dominik Zietlow , Max Horn , Osama Makansi , Francesco Locatello , Chris Russell