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We present an improved Locality Preserving Projections (LPP) method, named Gloablity-Locality Preserving Projections (GLPP), to preserve both the global and local geometric structures of data. In our approach, an additional constraint of…

Computer Vision and Pattern Recognition · Computer Science 2013-11-07 Sheng Huang , Dan Yang , Fei Yang , Yongxin Ge , Xiaohong Zhang , Jiwen Lu

Learning on Grassmann manifold has become popular in many computer vision tasks, with the strong capability to extract discriminative information for imagesets and videos. However, such learning algorithms particularly on high-dimensional…

Computer Vision and Pattern Recognition · Computer Science 2017-04-28 Boyue Wang , Yongli Hu , Junbin Gao , Yanfeng Sun , Haoran Chen , Baocai Yin

To predict a set of diverse and informative proposals with enriched representations, this paper introduces a differentiable Determinantal Point Process (DPP) layer that is able to augment the object detection architectures. Most modern…

Computer Vision and Pattern Recognition · Computer Science 2017-04-13 Samaneh Azadi , Jiashi Feng , Trevor Darrell

Face recognition has been widely studied due to its importance in smart cities applications. However, the case when both training and test images are corrupted is not well solved. To address such a problem, this paper proposes a locality…

Computer Vision and Pattern Recognition · Computer Science 2019-12-09 He-Feng Yin , Xiao-Jun Wu , Josef Kittler

Face recognition is still a very demanding area of research. This problem becomes more challenging in unconstrained environment and in the presence of several variations like pose, illumination, expression, etc. Local descriptors are widely…

Computer Vision and Pattern Recognition · Computer Science 2019-07-04 Shiv Ram Dubey

Symmetric positive definite (SPD) matrices used as feature descriptors in image recognition are usually high dimensional. Traditional manifold learning is only applicable for reducing the dimension of high-dimensional vector-form data. For…

Computer Vision and Pattern Recognition · Computer Science 2017-11-17 Yangyang Li , Ruqian Lu

The model of low-dimensional manifold and sparse representation are two well-known concise models that suggest each data can be described by a few characteristics. Manifold learning is usually investigated for dimension reduction by…

Computer Vision and Pattern Recognition · Computer Science 2016-03-22 Xi Peng , Lei Zhang , Zhang Yi , Kok Kiong Tan

Practical face recognition has been studied in the past decades, but still remains an open challenge. Current prevailing approaches have already achieved substantial breakthroughs in recognition accuracy. However, their performance usually…

Computer Vision and Pattern Recognition · Computer Science 2015-11-03 Yandong Wen , Weiyang Liu , Meng Yang , Zhifeng Li

In this paper, we address the challenge of Perspective-Invariant Learning in machine learning and computer vision, which involves enabling a network to understand images from varying perspectives to achieve consistent semantic…

Computer Vision and Pattern Recognition · Computer Science 2024-06-18 Deyi Ji , Feng Zhao , Lanyun Zhu , Wenwei Jin , Hongtao Lu , Jieping Ye

This paper proposes a novel discriminative regression method, called adaptive locality preserving regression (ALPR) for classification. In particular, ALPR aims to learn a more flexible and discriminative projection that not only preserves…

Computer Vision and Pattern Recognition · Computer Science 2019-01-04 Jie Wen , Zuofeng Zhong , Zheng Zhang , Lunke Fei , Zhihui Lai , Runze Chen

Place recognition is an essential and challenging task in loop closing and global localization for robotics and autonomous driving applications. Benefiting from the recent advances in deep learning techniques, the performance of LiDAR place…

Computer Vision and Pattern Recognition · Computer Science 2023-06-16 Jiafeng Cui , Xieyuanli Chen

Generative models have proven to be an outstanding tool for representing high-dimensional probability distributions and generating realistic-looking images. An essential characteristic of generative models is their ability to produce…

Machine Learning · Computer Science 2019-11-26 Mohamed Elfeki , Camille Couprie , Morgane Riviere , Mohamed Elhoseiny

Deep models have been widely and successfully used in image manipulation detection, which aims to classify tampered images and localize tampered regions. Most existing methods mainly focus on extracting global features from tampered images,…

Computer Vision and Pattern Recognition · Computer Science 2023-02-23 Yuyuan Zeng , Bowen Zhao , Shanzhao Qiu , Tao Dai , Shu-Tao Xia

Artificial intelligence systems in critical fields like autonomous driving and medical imaging analysis often continually learn new tasks using a shared stream of input data. For instance, after learning to detect traffic signs, a model may…

Machine Learning · Computer Science 2025-11-18 Hanchen David Wang , Siwoo Bae , Zirong Chen , Meiyi Ma

This paper proposes a novel Deep Positive-Negative Prototype (DPNP) model that combines prototype-based learning (PbL) with discriminative methods to improve class compactness and separability in deep neural networks. While PbL…

Machine Learning · Computer Science 2025-01-07 Ramin Zarei-Sabzevar , Ahad Harati

We propose a novel Coupled Projection multi-task Metric Learning (CP-mtML) method for large scale face retrieval. In contrast to previous works which were limited to low dimensional features and small datasets, the proposed method scales to…

Computer Vision and Pattern Recognition · Computer Science 2016-04-12 Binod Bhattarai , Gaurav Sharma , Frederic Jurie

Dimensionality reduction-based dictionary learning methods in the literature have often used iterative random projections. The dimensionality of such a random projection matrix is a random number that might not lead to a separable subspace…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 G. Madhuri , Atul Negi , Kaluri V. Rangarao

Owe to the rapid development of deep neural network (DNN) techniques and the emergence of large scale face databases, face recognition has achieved a great success in recent years. During the training process of DNN, the face features and…

Computer Vision and Pattern Recognition · Computer Science 2018-01-18 Xianbiao Qi , Lei Zhang

Most convolutional neural networks use some method for gradually downscaling the size of the hidden layers. This is commonly referred to as pooling, and is applied to reduce the number of parameters, improve invariance to certain…

Computer Vision and Pattern Recognition · Computer Science 2018-04-13 Faraz Saeedan , Nicolas Weber , Michael Goesele , Stefan Roth

Discriminative dictionary learning (DDL) has recently gained significant attention due to its impressive performance in various pattern classification tasks. However, the locality of atoms is not fully explored in conventional DDL…

Computer Vision and Pattern Recognition · Computer Science 2019-11-25 He-Feng Yin , Xiao-Jun Wu , Su-Gen Chen
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