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Several recent works have shown that image descriptors produced by deep convolutional neural networks provide state-of-the-art performance for image classification and retrieval problems. It has also been shown that the activations from the…

计算机视觉与模式识别 · 计算机科学 2015-10-27 Artem Babenko , Victor Lempitsky

An effective 3D descriptor should be invariant to different geometric transformations, such as scale and rotation, robust to occlusions and clutter, and capable of generalising to different application domains. We present a simple yet…

计算机视觉与模式识别 · 计算机科学 2022-05-16 Fabio Poiesi , Davide Boscaini

Dimension reduction (DR) algorithms have proven to be extremely useful for gaining insight into large-scale high-dimensional datasets, particularly finding clusters in transcriptomic data. The initial phase of these DR methods often…

机器学习 · 计算机科学 2025-10-15 Yingfan Wang , Yiyang Sun , Haiyang Huang , Cynthia Rudin

Text-based visual descriptors--ranging from simple class names to more descriptive phrases--are widely used in visual concept discovery and image classification with vision-language models (VLMs). Their effectiveness, however, depends on a…

计算机视觉与模式识别 · 计算机科学 2025-07-10 Ethan Lin , Linxi Zhao , Atharva Sehgal , Jennifer J. Sun

Training deep CNNs to capture localized image artifacts on a relatively small dataset is a challenging task. With enough images at hand, one can hope that a deep CNN characterizes localized artifacts over the entire data and their effect on…

计算机视觉与模式识别 · 计算机科学 2017-11-15 Parag Shridhar Chandakkar , Baoxin Li

Deep neural network based methods have achieved promising results for CT metal artifact reduction (MAR), most of which use many synthesized paired images for training. As synthesized metal artifacts in CT images may not accurately reflect…

图像与视频处理 · 电气工程与系统科学 2020-07-09 Chuang Niu , Wenxiang Cong , Fenglei Fan , Hongming Shan , Mengzhou Li , Jimin Liang , Ge Wang

In this work, we present a novel method to learn a local cross-domain descriptor for 2D image and 3D point cloud matching. Our proposed method is a dual auto-encoder neural network that maps 2D and 3D input into a shared latent space…

计算机视觉与模式识别 · 计算机科学 2019-11-22 Quang-Hieu Pham , Mikaela Angelina Uy , Binh-Son Hua , Duc Thanh Nguyen , Gemma Roig , Sai-Kit Yeung

Multi-layer perceptrons (MLP) have proven to be effective scene encoders when combined with higher-dimensional projections of the input, commonly referred to as \textit{positional encoding}. However, scenes with a wide frequency spectrum…

计算机视觉与模式识别 · 计算机科学 2022-06-20 Zoe Landgraf , Alexander Sorkine Hornung , Ricardo Silveira Cabral

With the advances in both stable interest region detectors and robust and distinctive descriptors, local feature-based image or object retrieval has become a popular research topic. %All of the local feature-based image retrieval system…

计算机视觉与模式识别 · 计算机科学 2016-07-29 Yusuke Uchida

When pre-processing observational data via matching, we seek to approximate each unit with maximally similar peers that had an alternative treatment status--essentially replicating a randomized block design. However, as one considers a…

计量经济学 · 经济学 2019-05-30 Gentry Johnson , Brian Quistorff , Matt Goldman

One of the central issues of several machine learning applications on real data is the choice of the input features. Ideally, the designer should select only the relevant, non-redundant features to preserve the complete information…

机器学习 · 计算机科学 2023-03-28 Paolo Bonetti , Alberto Maria Metelli , Marcello Restelli

Most of the current boundary detection systems rely exclusively on low-level features, such as color and texture. However, perception studies suggest that humans employ object-level reasoning when judging if a particular pixel is a…

计算机视觉与模式识别 · 计算机科学 2015-09-22 Gedas Bertasius , Jianbo Shi , Lorenzo Torresani

It has been shown that the activations invoked by an image within the top layers of a large convolutional neural network provide a high-level descriptor of the visual content of the image. In this paper, we investigate the use of such…

计算机视觉与模式识别 · 计算机科学 2014-07-08 Artem Babenko , Anton Slesarev , Alexandr Chigorin , Victor Lempitsky

Datasets such as images, text, or movies are embedded in high-dimensional spaces. However, in important cases such as images of objects, the statistical structure in the data constrains samples to a manifold of dramatically lower…

机器学习 · 计算机科学 2019-10-29 Stefano Recanatesi , Matthew Farrell , Madhu Advani , Timothy Moore , Guillaume Lajoie , Eric Shea-Brown

Low-dimensional embeddings for data from disparate sources play critical roles in multi-modal machine learning, multimedia information retrieval, and bioinformatics. In this paper, we propose a supervised dimensionality reduction method…

机器学习 · 计算机科学 2021-01-15 Yanjun Li , Bihan Wen , Hao Cheng , Yoram Bresler

Robust local feature representations are essential for spatial intelligence tasks such as robot navigation and augmented reality. Establishing reliable correspondences requires descriptors that provide both high discriminative power and…

计算机视觉与模式识别 · 计算机科学 2026-01-15 Haodi Yao , Fenghua He , Ning Hao , Yao Su

Shapes and texture image recognition usage is an essential branch of pattern recognition. It is made up of techniques that aim at extracting information from images via human knowledge and works. Local Binary Pattern (LBP) ensures encoding…

计算机视觉与模式识别 · 计算机科学 2014-11-27 Mohammed A. Talab , Siti Norul Huda Sheikh Abdullah , Bilal Bataineh

Considerable research attention has been paid to table detection by developing not only rule-based approaches reliant on hand-crafted heuristics but also deep learning approaches. Although recent studies successfully perform table detection…

机器学习 · 计算机科学 2022-11-15 Hyebin Kwon , Joungbin An , Dongwoo Lee , Won-Yong Shin

Self-attention mechanism is the key of the Transformer but often criticized for its computation demands. Previous token pruning works motivate their methods from the view of computation redundancy but still need to load the full network and…

计算机视觉与模式识别 · 计算机科学 2024-04-09 Sihao Lin , Pumeng Lyu , Dongrui Liu , Tao Tang , Xiaodan Liang , Andy Song , Xiaojun Chang

It is common to address the curse of dimensionality in Markov decision processes (MDPs) by exploiting low-rank representations. This motivates much of the recent theoretical study on linear MDPs. However, most approaches require a given…

机器学习 · 计算机科学 2022-12-09 Tianjun Zhang , Tongzheng Ren , Mengjiao Yang , Joseph E. Gonzalez , Dale Schuurmans , Bo Dai