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Similarity matrix serves as a fundamental tool at the core of numerous downstream machine-learning tasks. However, missing data is inevitable and often results in an inaccurate similarity matrix. To address this issue, Similarity Matrix…

机器学习 · 计算机科学 2024-10-01 Changyi Ma , Runsheng Yu , Xiao Chen , Youzhi Zhang

Dense pixel matching is important for many computer vision tasks such as disparity and flow estimation. We present a robust, unified descriptor network that considers a large context region with high spatial variance. Our network has a very…

计算机视觉与模式识别 · 计算机科学 2019-04-08 René Schuster , Oliver Wasenmüller , Christian Unger , Didier Stricker

Learning faithful graph representations as sets of vertex embeddings has become a fundamental intermediary step in a wide range of machine learning applications. We propose the systematic use of symmetric spaces in representation learning,…

机器学习 · 计算机科学 2021-06-10 Federico López , Beatrice Pozzetti , Steve Trettel , Michael Strube , Anna Wienhard

Covariance data as represented by symmetric positive definite (SPD) matrices are ubiquitous throughout technical study as efficient descriptors of interdependent systems. Euclidean analysis of SPD matrices, while computationally fast, can…

机器学习 · 计算机科学 2021-07-22 Graham W. Van Goffrier , Cyrus Mostajeran , Rodolphe Sepulchre

This paper introduces Progressively Diffused Networks (PDNs) for unifying multi-scale context modeling with deep feature learning, by taking semantic image segmentation as an exemplar application. Prior neural networks, such as ResNet, tend…

计算机视觉与模式识别 · 计算机科学 2017-02-21 Ruimao Zhang , Wei Yang , Zhanglin Peng , Xiaogang Wang , Liang Lin

Over the past few years, symmetric positive definite (SPD) matrices have been receiving considerable attention from computer vision community. Though various distance measures have been proposed in the past for comparing SPD matrices, the…

计算机视觉与模式识别 · 计算机科学 2015-01-13 Raviteja Vemulapalli , David W. Jacobs

In this paper, we propose an easily trained yet powerful representation learning approach with performance highly competitive to deep neural networks in a digital pathology image segmentation task. The method, called sparse coding driven…

计算机视觉与模式识别 · 计算机科学 2020-08-14 Jie Song , Liang Xiao , Mohsen Molaei , Zhichao Lian

The objective of this work is to learn a compact embedding of a set of descriptors that is suitable for efficient retrieval and ranking, whilst maintaining discriminability of the individual descriptors. We focus on a specific example of…

计算机视觉与模式识别 · 计算机科学 2020-03-27 Yujie Zhong , Relja Arandjelović , Andrew Zisserman

Depth prediction is one of the fundamental problems in computer vision. In this paper, we propose a simple yet effective convolutional spatial propagation network (CSPN) to learn the affinity matrix for various depth estimation tasks.…

计算机视觉与模式识别 · 计算机科学 2019-10-07 Xinjing Cheng , Peng Wang , Ruigang Yang

Depth estimation from a single image is a fundamental problem in computer vision. In this paper, we propose a simple yet effective convolutional spatial propagation network (CSPN) to learn the affinity matrix for depth prediction.…

计算机视觉与模式识别 · 计算机科学 2018-08-02 Xinjing Cheng , Peng Wang , Ruigang Yang

Supervised manifold learning methods learn data representations by preserving the geometric structure of data while enhancing the separation between data samples from different classes. In this work, we propose a theoretical study of…

机器学习 · 计算机科学 2018-01-08 Elif Vural , Christine Guillemot

This paper introduces a novel framework for single-pixel imaging via compressive sensing (CS) in shift-invariant (SI) spaces by exploiting the sparsity property of a wavelet representation. We reinterpret the acquisition procedure of a…

图像与视频处理 · 电气工程与系统科学 2022-04-19 Tin Vlašić , Damir Seršić

Despite the effectiveness of Convolutional Neural Networks (CNNs) for image classification, our understanding of the relationship between shape of convolution kernels and learned representations is limited. In this work, we explore and…

计算机视觉与模式识别 · 计算机科学 2016-11-30 Zhun Sun , Mete Ozay , Takayuki Okatani

Object co-segmentation is to segment the shared objects in multiple relevant images, which has numerous applications in computer vision. This paper presents a spatial and semantic modulated deep network framework for object co-segmentation.…

计算机视觉与模式识别 · 计算机科学 2019-12-02 Kaihua Zhang , Jin Chen , Bo Liu , Qingshan Liu

Despite the advances of deep learning in specific tasks using images, the principled assessment of image fidelity and similarity is still a critical ability to develop. As it has been shown that Mean Squared Error (MSE) is insufficient for…

图像与视频处理 · 电气工程与系统科学 2019-08-27 Benyamin Ghojogh , Fakhri Karray , Mark Crowley

We present a method for detecting objects in images using a single deep neural network. Our approach, named SSD, discretizes the output space of bounding boxes into a set of default boxes over different aspect ratios and scales per feature…

计算机视觉与模式识别 · 计算机科学 2016-12-30 Wei Liu , Dragomir Anguelov , Dumitru Erhan , Christian Szegedy , Scott Reed , Cheng-Yang Fu , Alexander C. Berg

Learning the manifold structure of remote sensing images is of paramount relevance for modeling and understanding processes, as well as to encapsulate the high dimensionality in a reduced set of informative features for subsequent…

计算机视觉与模式识别 · 计算机科学 2022-05-04 Gulsen Taskin , Gustau Camps-Valls

Metric learning has been shown to be highly effective to improve the performance of nearest neighbor classification. In this paper, we address the problem of metric learning for Symmetric Positive Definite (SPD) matrices such as covariance…

机器学习 · 计算机科学 2015-02-13 Florian Yger , Masashi Sugiyama

Dimensionality reduction is an important preprocessing step of the hyperspectral images classification (HSI), it is inevitable task. Some methods use feature selection or extraction algorithms based on spectral and spatial information. In…

计算机视觉与模式识别 · 计算机科学 2022-11-02 Hasna Nhaila , Elkebir Sarhrouni , Ahmed Hammouch

Convolutional layers have long served as the primary workhorse for image classification. Recently, an alternative to convolution was proposed using the Sharpened Cosine Similarity (SCS), which in theory may serve as a better feature…

计算机视觉与模式识别 · 计算机科学 2023-07-27 Skyler Wu , Fred Lu , Edward Raff , James Holt