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Vision transformers (ViTs) have pushed the state-of-the-art for visual perception tasks. The self-attention mechanism underpinning the strength of ViTs has a quadratic complexity in both computation and memory usage. This motivates the…

Computer Vision and Pattern Recognition · Computer Science 2024-03-18 Jiachen Lu , Junge Zhang , Xiatian Zhu , Jianfeng Feng , Tao Xiang , Li Zhang

For many computer vision applications, such as image description and human identification, recognizing the visual attributes of humans is an essential yet challenging problem. Its challenges originate from its multi-label nature, the large…

Computer Vision and Pattern Recognition · Computer Science 2018-07-27 Nikolaos Sarafianos , Xiang Xu , Ioannis A. Kakadiaris

Learning feature representation from discriminative local regions plays a key role in fine-grained visual classification. Employing attention mechanisms to extract part features has become a trend. However, there are two major limitations…

Computer Vision and Pattern Recognition · Computer Science 2021-05-06 Jianwei Song , Ruoyu Yang

Most image segmentation algorithms are trained on binary masks formulated as a classification task per pixel. However, in applications such as medical imaging, this "black-and-white" approach is too constraining because the contrast between…

Image and Video Processing · Electrical Eng. & Systems 2020-11-19 Charley Gros , Andreanne Lemay , Julien Cohen-Adad

Using a support vector machine requires to set two types of hyperparameters: the soft margin parameter C and the parameters of the kernel. To perform this model selection task, the method of choice is cross-validation. Its leave-one-out…

Machine Learning · Computer Science 2008-12-18 Emmanuel Monfrini , Yann Guermeur

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…

Computer Vision and Pattern Recognition · Computer Science 2016-11-15 Zhanpeng Zhang , Ping Luo , Chen Change Loy , Xiaoou Tang

Convolutional neural networks require numerous data for training. Considering the difficulties in data collection and labeling in some specific tasks, existing approaches generally use models pre-trained on a large source domain (e.g.…

Computer Vision and Pattern Recognition · Computer Science 2019-09-06 Zhichen Zhao , Bowen Zhang , Yuning Jiang , Li Xu , Lei Li , Wei-Ying Ma

Discriminative features are critical for machine learning applications. Most existing deep learning approaches, however, rely on convolutional neural networks (CNNs) for learning features, whose discriminant power is not explicitly…

Computer Vision and Pattern Recognition · Computer Science 2018-04-24 Fusheng Hao , Jun Cheng , Lei Wang , Xinchao Wang , Jianzhong Cao , Xiping Hu , Dapeng Tao

With the advent of 2-dimensional Convolution Neural Networks (2D CNNs), the face recognition accuracy has reached above 99%. However, face recognition is still a challenge in real world conditions. A video, instead of an image, as an input…

Computer Vision and Pattern Recognition · Computer Science 2021-02-03 Nayaneesh Kumar Mishra , Satish Kumar Singh

Deep learning models have become an increasingly preferred option for biometric recognition systems, such as speaker recognition. SincNet, a deep neural network architecture, gained popularity in speaker recognition tasks due to its…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-13 Labib Chowdhury , Mustafa Kamal , Najia Hasan , Nabeel Mohammed

While the fine-grained visual categorization (FGVC) problems have been greatly developed in the past years, the Ultra-fine-grained visual categorization (Ultra-FGVC) problems have been understudied. FGVC aims at classifying objects from the…

Computer Vision and Pattern Recognition · Computer Science 2021-09-17 Zicheng Pan , Xiaohan Yu , Miaohua Zhang , Yongsheng Gao

We introduce a shape-sensitive loss function for catheter and guidewire segmentation and utilize it in a vision transformer network to establish a new state-of-the-art result on a large-scale X-ray images dataset. We transform…

Image and Video Processing · Electrical Eng. & Systems 2024-01-23 Chayun Kongtongvattana , Baoru Huang , Jingxuan Kang , Hoan Nguyen , Olajide Olufemi , Anh Nguyen

A number of pattern recognition tasks, \textit{e.g.}, face verification, can be boiled down to classification or clustering of unit length directional feature vectors whose distance can be simply computed by their angle. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2018-01-03 Md. Abul Hasnat , Julien Bohné , Jonathan Milgram , Stéphane Gentric , Liming Chen

The softmax layer in neural machine translation is designed to model the distribution over mutually exclusive tokens. Machine translation, however, is intrinsically uncertain: the same source sentence can have multiple semantically…

Computation and Language · Computer Science 2022-05-03 Felix Stahlberg , Shankar Kumar

In recent years, feature selection has become a challenging problem in several machine learning fields, such as classification problems. Support Vector Machine (SVM) is a well-known technique applied in classification tasks. Various…

Machine Learning · Computer Science 2021-01-18 Asunción Jiménez-Cordero , Juan Miguel Morales , Salvador Pineda

Visible-infrared person re-identification (VI-ReID) aims to match specific pedestrian images from different modalities. Although suffering an extra modality discrepancy, existing methods still follow the softmax loss training paradigm,…

Computer Vision and Pattern Recognition · Computer Science 2023-02-06 Lei Tan , Pingyang Dai , Qixiang Ye , Mingliang Xu , Yongjian Wu , Rongrong Ji

Most existing 3D object recognition algorithms focus on leveraging the strong discriminative power of deep learning models with softmax loss for the classification of 3D data, while learning discriminative features with deep metric learning…

Computer Vision and Pattern Recognition · Computer Science 2018-03-19 Xinwei He , Yang Zhou , Zhichao Zhou , Song Bai , Xiang Bai

Support Vector Machine (SVM) stands out as a prominent machine learning technique widely applied in practical pattern recognition tasks. It achieves binary classification by maximizing the "margin", which represents the minimum distance…

Machine Learning · Computer Science 2026-01-21 Zhezheng Hao , Feiping Nie , Rong Wang

Over the past decade, there has been a steady advancement in enhancing face recognition algorithms leveraging advanced machine learning methods. The role of the loss function is pivotal in addressing face verification problems and playing a…

Computer Vision and Pattern Recognition · Computer Science 2024-09-19 Pritesh Prakash , Koteswar Rao Jerripothula , Ashish Jacob Sam , Prinsh Kumar Singh , S Umamaheswaran

Current research in Computer Vision has shown that Convolutional Neural Networks (CNN) give state-of-the-art performance in many classification tasks and Computer Vision problems. The embedding of CNN, which is the internal representation…

Computer Vision and Pattern Recognition · Computer Science 2015-08-04 Axel Angel