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Any city-scale visual localization system has to overcome long-term appearance changes, such as varying illumination conditions or seasonal changes between query and database images. Since semantic content is more robust to such changes, we…

Computer Vision and Pattern Recognition · Computer Science 2022-04-01 Semih Orhan , Jose J. Guerrero , Yalin Bastanlar

This paper proposes a new method, that we call VisualBackProp, for visualizing which sets of pixels of the input image contribute most to the predictions made by the convolutional neural network (CNN). The method heavily hinges on exploring…

Computer Vision and Pattern Recognition · Computer Science 2017-05-23 Mariusz Bojarski , Anna Choromanska , Krzysztof Choromanski , Bernhard Firner , Larry Jackel , Urs Muller , Karol Zieba

Visual place recognition (VPR) is a robot's ability to determine whether a place was visited before using visual data. While conventional hand-crafted methods for VPR fail under extreme environmental appearance changes, those based on…

Computer Vision and Pattern Recognition · Computer Science 2022-03-07 Bruno Ferrarini , Michael Milford , Klaus D. McDonald-Maier , Shoaib Ehsan

The goal of this work is to replace objects in an RGB-D scene with corresponding 3D models from a library. We approach this problem by first detecting and segmenting object instances in the scene using the approach from Gupta et al. [13].…

Computer Vision and Pattern Recognition · Computer Science 2015-02-17 Saurabh Gupta , Pablo Arbeláez , Ross Girshick , Jitendra Malik

In this paper, we propose a novel approach that learns to sequentially attend to different Convolutional Neural Networks (CNN) layers (i.e., ``what'' feature abstraction to attend to) and different spatial locations of the selected feature…

Computer Vision and Pattern Recognition · Computer Science 2019-06-03 Tony Joseph , Konstantinos G. Derpanis , Faisal Z. Qureshi

This paper presents a novel keypoints-based attention mechanism for visual recognition in still images. Deep Convolutional Neural Networks (CNNs) for recognizing images with distinctive classes have shown great success, but their…

Computer Vision and Pattern Recognition · Computer Science 2021-10-26 Asish Bera , Zachary Wharton , Yonghuai Liu , Nik Bessis , Ardhendu Behera

Image representations derived from pre-trained Convolutional Neural Networks (CNNs) have become the new state of the art in computer vision tasks such as instance retrieval. This work explores the suitability for instance retrieval of…

Computer Vision and Pattern Recognition · Computer Science 2016-05-02 Amaia Salvador , Xavier Giro-i-Nieto , Ferran Marques , Shin'ichi Satoh

In this paper, we propose an encoder-decoder convolutional neural network (CNN) architecture for estimating camera pose (orientation and location) from a single RGB-image. The architecture has a hourglass shape consisting of a chain of…

Computer Vision and Pattern Recognition · Computer Science 2017-08-25 Iaroslav Melekhov , Juha Ylioinas , Juho Kannala , Esa Rahtu

Predicting novel views of a scene from real-world images has always been a challenging task. In this work, we propose a deep convolutional neural network (CNN) which learns to predict novel views of a scene from given collection of images.…

Computer Vision and Pattern Recognition · Computer Science 2021-07-15 Amit More , Subhasis Chaudhuri

In this work, we address the problem of improvement of robustness of feature representations learned using convolutional neural networks (CNNs) to image deformation. We argue that higher moment statistics of feature distributions could be…

Computer Vision and Pattern Recognition · Computer Science 2017-07-26 Zhun Sun , Mete Ozay , Takayuki Okatani

Since scenes are composed in part of objects, accurate recognition of scenes requires knowledge about both scenes and objects. In this paper we address two related problems: 1) scale induced dataset bias in multi-scale convolutional neural…

Computer Vision and Pattern Recognition · Computer Science 2018-01-23 Luis Herranz , Shuqiang Jiang , Xiangyang Li

In the task of Object Recognition, there exists a dichotomy between the categorization of objects and estimating object pose, where the former necessitates a view-invariant representation, while the latter requires a representation capable…

Computer Vision and Pattern Recognition · Computer Science 2016-04-20 Mohamed Elhoseiny , Tarek El-Gaaly , Amr Bakry , Ahmed Elgammal

Interest point descriptors have fueled progress on almost every problem in computer vision. Recent advances in deep neural networks have enabled task-specific learned descriptors that outperform hand-crafted descriptors on many problems. We…

Computer Vision and Pattern Recognition · Computer Science 2018-08-03 Mohammed E. Fathy , Quoc-Huy Tran , M. Zeeshan Zia , Paul Vernaza , Manmohan Chandraker

In this study, we propose a fast and accurate method to automatically localize anatomical landmarks in medical images. We employ a global-to-local localization approach using fully convolutional neural networks (FCNNs). First, a global FCNN…

Neuroscientists classify neurons into different types that perform similar computations at different locations in the visual field. Traditional methods for neural system identification do not capitalize on this separation of 'what' and…

Machine Learning · Statistics 2018-01-30 David A. Klindt , Alexander S. Ecker , Thomas Euler , Matthias Bethge

Due to the rapid increase in the diversity of image data, the problem of domain generalization has received increased attention recently. While domain generalization is a challenging problem, it has achieved great development thanks to the…

Computer Vision and Pattern Recognition · Computer Science 2021-10-14 Cuicui Kang , Karthik Nandakumar

Supervised training of a convolutional network for object classification should make explicit any information related to the class of objects and disregard any auxiliary information associated with the capture of the image or the variation…

Computer Vision and Pattern Recognition · Computer Science 2014-11-25 Ali Sharif Razavian , Hossein Azizpour , Atsuto Maki , Josephine Sullivan , Carl Henrik Ek , Stefan Carlsson

Visual Place Recognition (VPR) is the task of matching current visual imagery from a camera to images stored in a reference map of the environment. While initial VPR systems used simple direct image methods or hand-crafted visual features,…

Computer Vision and Pattern Recognition · Computer Science 2021-02-25 Sourav Garg , Michael Milford

The anatomical location of imaging features is of crucial importance for accurate diagnosis in many medical tasks. Convolutional neural networks (CNN) have had huge successes in computer vision, but they lack the natural ability to…

Computer Vision and Pattern Recognition · Computer Science 2016-11-01 Mohsen Ghafoorian , Nico Karssemeijer , Tom Heskes , Inge van Uden , Clara Sanchez , Geert Litjens , Frank-Erik de Leeuw , Bram van Ginneken , Elena Marchiori , Bram Platel

Often multiple instances of an object occur in the same scene, for example in a warehouse. Unsupervised multi-instance object discovery algorithms are able to detect and identify such objects. We use such an algorithm to provide object…

Computer Vision and Pattern Recognition · Computer Science 2017-07-25 Wim Abbeloos , Sergio Caccamo , Esra Ataer-Cansizoglu , Yuichi Taguchi , Chen Feng , Teng-Yok Lee
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