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Deep convolutional neural network models pre-trained for the ImageNet classification task have been successfully adopted to tasks in other domains, such as texture description and object proposal generation, but these tasks require…

Computer Vision and Pattern Recognition · Computer Science 2017-07-14 Xiu-Shen Wei , Jian-Hao Luo , Jianxin Wu , Zhi-Hua Zhou

Content-Based Image Retrieval based on local features is computationally expensive because of the complexity of both extraction and matching of local feature. On one hand, the cost for extracting, representing, and comparing local visual…

Computer Vision and Pattern Recognition · Computer Science 2017-03-03 Giuseppe Amato , Fabrizio Falchi , Lucia Vadicamo

In traditional Federated Learning approaches like FedAvg, the global model underperforms when faced with data heterogeneity. Personalized Federated Learning (PFL) enables clients to train personalized models to fit their local data…

Machine Learning · Computer Science 2024-07-24 Xinghao Wu , Jianwei Niu , Xuefeng Liu , Mingjia Shi , Guogang Zhu , Shaojie Tang

In this paper we present an efficient method for aggregating binary feature descriptors to allow compact representation of 3D scene model in incremental structure-from-motion and SLAM applications. All feature descriptors linked with one 3D…

Computer Vision and Pattern Recognition · Computer Science 2018-10-01 Jacek Komorowski , Tomasz Trzcinski

In this paper we introduce Principal Filter Analysis (PFA), an easy to use and effective method for neural network compression. PFA exploits the correlation between filter responses within network layers to recommend a smaller network that…

Computer Vision and Pattern Recognition · Computer Science 2019-12-12 Xavier Suau , Luca Zappella , Nicholas Apostoloff

Visual place recognition (VPR) is typically regarded as a specific image retrieval task, whose core lies in representing images as global descriptors. Over the past decade, dominant VPR methods (e.g., NetVLAD) have followed a paradigm that…

Computer Vision and Pattern Recognition · Computer Science 2026-01-19 Feng Lu , Tong Jin , Canming Ye , Yunpeng Liu , Xiangyuan Lan , Chun Yuan

Learning on sets is increasingly gaining attention in the machine learning community, due to its widespread applicability. Typically, representations over sets are computed by using fixed aggregation functions such as sum or maximum.…

Machine Learning · Computer Science 2021-06-07 Giovanni Pellegrini , Alessandro Tibo , Paolo Frasconi , Andrea Passerini , Manfred Jaeger

The use of retrieval-augmented generation (RAG) to retrieve relevant information from an external knowledge source enables large language models (LLMs) to answer questions over private and/or previously unseen document collections. However,…

In this paper a novel hand crafted local quadruple pattern (LQPAT) is proposed for facial image recognition and retrieval. Most of the existing hand-crafted descriptors encodes only a limited number of pixels in the local neighbourhood.…

Computer Vision and Pattern Recognition · Computer Science 2022-01-05 Soumendu Chakraborty , Satish Kumar Singh , Pavan Chakraborty

Face recognition from image sets acquired under unregulated and uncontrolled settings, such as at large distances, low resolutions, varying viewpoints, illumination, pose, and atmospheric conditions, is challenging. Face feature…

Computer Vision and Pattern Recognition · Computer Science 2023-07-21 Bhavin Jawade , Deen Dayal Mohan , Dennis Fedorishin , Srirangaraj Setlur , Venu Govindaraju

Semantic segmentation of point clouds generates comprehensive understanding of scenes through densely predicting the category for each point. Due to the unicity of receptive field, semantic segmentation of point clouds remains challenging…

Computer Vision and Pattern Recognition · Computer Science 2022-11-04 Yongqiang Mao , Xian Sun , Kaiqiang Chen , Wenhui Diao , Zonghao Guo , Xiaonan Lu , Kun Fu

It has been widely proven that modelling long-range dependencies in fully convolutional networks (FCNs) via global aggregation modules is critical for complex scene understanding tasks such as semantic segmentation and object detection.…

Computer Vision and Pattern Recognition · Computer Science 2019-09-17 Xiangtai Li , Li Zhang , Ansheng You , Maoke Yang , Kuiyuan Yang , Yunhai Tong

Image Forgery Localization (IFL) technology aims to detect and locate the forged areas in an image, which is very important in the field of digital forensics. However, existing IFL methods suffer from feature degradation during training…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Yakun Niu , Pei Chen , Lei Zhang , Lei Tan , Yingjian Chen

The unstructured nature of point clouds demands that local aggregation be adaptive to different local structures. Previous methods meet this by explicitly embedding spatial relations into each aggregation process. Although this coupled…

Computer Vision and Pattern Recognition · Computer Science 2023-09-01 Binjie Chen , Yunzhou Xia , Yu Zang , Cheng Wang , Jonathan Li

This paper aims to learn a compact representation of a video for video face recognition task. We make the following contributions: first, we propose a meta attention-based aggregation scheme which adaptively and fine-grained weighs the…

Computer Vision and Pattern Recognition · Computer Science 2019-09-13 Zhaoxiang Liu , Huan Hu , Jinqiang Bai , Shaohua Li , Shiguo Lian

The paper presents a novel concept for collaborative descriptors between deeply learned and hand-crafted features. To achieve this concept, we apply convolutional maps for pre-processing, namely the convovlutional maps are used as input of…

Computer Vision and Pattern Recognition · Computer Science 2017-05-11 Hirokatsu Kataoka , Kaori Abe , Akio Nakamura , Yutaka Satoh

The performance of local feature descriptors degrades in the presence of large rotation variations. To address this issue, we present an efficient approach to learning rotation invariant descriptors. Specifically, we propose Rotated Kernel…

Computer Vision and Pattern Recognition · Computer Science 2024-01-08 Ranran Huang , Jiancheng Cai , Chao Li , Zhuoyuan Wu , Xinmin Liu , Zhenhua Chai

Recent advancements in federated learning (FL) have greatly facilitated the development of decentralized collaborative applications, particularly in the domain of Artificial Intelligence of Things (AIoT). However, a critical aspect missing…

Artificial Intelligence · Computer Science 2024-01-25 Ziyan An , Taylor T. Johnson , Meiyi Ma

Federated learning (FL) is a distributed learning framework that leverages commonalities between distributed client datasets to train a global model. Under heterogeneous clients, however, FL can fail to produce stable training results.…

Machine Learning · Computer Science 2024-11-04 Connor J. Mclaughlin , Lili Su

Multimodal Sentiment Analysis (MSA) seeks to infer human emotions by integrating textual, acoustic, and visual cues. However, existing approaches often rely on all modalities are completeness, whereas real-world applications frequently…

Computer Vision and Pattern Recognition · Computer Science 2026-03-11 Jindi Bao , Jianjun Qian , Mengkai Yan , Jian Yang