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Despite significant advances in clustering methods in recent years, the outcome of clustering of a natural image dataset is still unsatisfactory due to two important drawbacks. Firstly, clustering of images needs a good feature…

Computer Vision and Pattern Recognition · Computer Science 2019-01-23 Dipanjan Das , Ratul Ghosh , Brojeshwar Bhowmick

An effective approach to automated movie content analysis involves building a network (graph) of its characters. Existing work usually builds a static character graph to summarize the content using metadata, scripts or manual annotations.…

Computer Vision and Pattern Recognition · Computer Science 2020-07-30 Prakhar Kulshreshtha , Tanaya Guha

Facial expressions convey non-verbal cues, which play an important role in interpersonal relations. Automatic recognition of human face based on facial expression can be an important component of natural human-machine interface. It may also…

Computer Vision and Pattern Recognition · Computer Science 2011-04-08 Soumen Bag , Soumen Barik , Prithwiraj Sen , Gautam Sanyal

Instance-level alignment is widely exploited for person re-identification, e.g. spatial alignment, latent semantic alignment and triplet alignment. This paper probes another feature alignment modality, namely cluster-level feature alignment…

Computer Vision and Pattern Recognition · Computer Science 2020-08-18 Qiuyu Chen , Wei Zhang , Jianping Fan

Self-supervised instance discrimination is an effective contrastive pretext task to learn feature representations and address limited medical image annotations. The idea is to make features of transformed versions of the same images similar…

Computer Vision and Pattern Recognition · Computer Science 2022-11-17 Yejia Zhang , Xinrong Hu , Nishchal Sapkota , Yiyu Shi , Danny Z. Chen

With rich temporal-spatial information, video-based person re-identification methods have shown broad prospects. Although tracklets can be easily obtained with ready-made tracking models, annotating identities is still expensive and…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Nanxing Meng , Qizao Wang , Bin Li , Xiangyang Xue

Pattern recognition problem rely upon the features inherent in the pattern of images. Face detection and recognition is one of the challenging research areas in the field of computer vision. In this paper, we present a method to identify…

Computer Vision and Pattern Recognition · Computer Science 2013-12-25 P. Kiran Sree , I. Ramesh Babu

Multimodal self-supervised learning is getting more and more attention as it allows not only to train large networks without human supervision but also to search and retrieve data across various modalities. In this context, this paper…

Clustering aims to group unlabeled objects based on similarity inherent among them into clusters. It is important for many tasks such as anomaly detection, database sharding, record linkage, and others. Some clustering methods are taken as…

Databases · Computer Science 2024-12-02 Binbin Gu , Saeed Kargar , Faisal Nawab

Tracking Facial Points in unconstrained videos is challenging due to the non-rigid deformation that changes over time. In this paper, we propose to exploit incremental learning for person-specific alignment in wild conditions. Our approach…

Computer Vision and Pattern Recognition · Computer Science 2016-09-12 Xi Peng , Qiong Hu , Junzhou Huang , Dimitris N. Metaxas

Despite significant progress made over the past twenty five years, unconstrained face verification remains a challenging problem. This paper proposes an approach that couples a deep CNN-based approach with a low-dimensional discriminative…

Computer Vision and Pattern Recognition · Computer Science 2017-01-19 Swami Sankaranarayanan , Azadeh Alavi , Carlos Castillo , Rama Chellappa

Action segmentation refers to inferring boundaries of semantically consistent visual concepts in videos and is an important requirement for many video understanding tasks. For this and other video understanding tasks, supervised approaches…

Computer Vision and Pattern Recognition · Computer Science 2021-03-30 M. Saquib Sarfraz , Naila Murray , Vivek Sharma , Ali Diba , Luc Van Gool , Rainer Stiefelhagen

Humans focus attention on different face regions when recognizing face attributes. Most existing face attribute classification methods use the whole image as input. Moreover, some of these methods rely on fiducial landmarks to provide…

Computer Vision and Pattern Recognition · Computer Science 2017-09-14 Hui Ding , Hao Zhou , Shaohua Kevin Zhou , Rama Chellappa

In the face of complex natural images, existing deep clustering algorithms fall significantly short in terms of clustering accuracy when compared to supervised classification methods, making them less practical. This paper introduces an…

Machine Learning · Computer Science 2024-08-13 Qiuyu Zhu , Liheng Hu , Sijin Wang

Despite tremendous advancements in Artificial Intelligence, learning from large sets of data in an unsupervised manner remains a significant challenge. Classical clustering algorithms often fail to discover complex dependencies in large…

Machine Learning · Computer Science 2023-07-18 Adam Piróg , Halina Kwaśnicka

Can pretrained models generalize to new datasets without any retraining? We deploy pretrained image models on datasets they were not trained for, and investigate whether their embeddings form meaningful clusters. Our suite of benchmarking…

Machine Learning · Computer Science 2024-06-05 Scott C. Lowe , Joakim Bruslund Haurum , Sageev Oore , Thomas B. Moeslund , Graham W. Taylor

Person re-identification (ReID) is an important problem in computer vision, especially for video surveillance applications. The problem focuses on identifying people across different cameras or across different frames of the same camera.…

Computer Vision and Pattern Recognition · Computer Science 2018-12-27 Doney Alex , Zishan Sami , Sumandeep Banerjee , Subrat Panda

We propose a self-supervised framework for learning facial attributes by simply watching videos of a human face speaking, laughing, and moving over time. To perform this task, we introduce a network, Facial Attributes-Net (FAb-Net), that is…

Computer Vision and Pattern Recognition · Computer Science 2018-08-22 Olivia Wiles , A. Sophia Koepke , Andrew Zisserman

Assigning consistent temporal identifiers to multiple moving objects in a video sequence is a challenging problem. A solution to that problem would have immediate ramifications in multiple object tracking and segmentation problems. We…

Computer Vision and Pattern Recognition · Computer Science 2021-11-08 Abubakar Siddique , Reza Jalil Mozhdehi , Henry Medeiros

This paper is focused on the automatic extraction of persons and their attributes (gender, year of born) from album of photos and videos. We propose the two-stage approach, in which, firstly, the convolutional neural network simultaneously…

Computer Vision and Pattern Recognition · Computer Science 2019-06-18 Andrey V. Savchenko
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