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We propose a novel graph pooling operation using cliques as the unit pool. As this approach is purely topological, rather than featural, it is more readily interpretable, a better analogue to image coarsening than filtering or pruning…

Machine Learning · Computer Science 2019-04-10 Enxhell Luzhnica , Ben Day , Pietro Lio'

Graph pooling is a central component of a myriad of graph neural network (GNN) architectures. As an inheritance from traditional CNNs, most approaches formulate graph pooling as a cluster assignment problem, extending the idea of local…

Machine Learning · Computer Science 2020-10-23 Diego Mesquita , Amauri H. Souza , Samuel Kaski

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

In this paper we present the biologically inspired Ripple Pond Network (RPN), a simply connected spiking neural network that, operating together with recently proposed PolyChronous Networks (PCN), enables rapid, unsupervised, scale and…

Neural and Evolutionary Computing · Computer Science 2013-06-14 Saeed Afshar , Gregory Cohen , Runchun Wang , Andre van Schaik , Jonathan Tapson , Torsten Lehmann , Tara Julia Hamilton

This paper presents an efficient module named spatial bottleneck for accelerating the convolutional layers in deep neural networks. The core idea is to decompose convolution into two stages, which first reduce the spatial resolution of the…

Computer Vision and Pattern Recognition · Computer Science 2018-09-10 Junran Peng , Lingxi Xie , Zhaoxiang Zhang , Tieniu Tan , Jingdong Wang

Event cameras offer unparalleled advantages such as high temporal resolution, low latency, and high dynamic range. However, their limited spatial resolution poses challenges for fine-grained perception tasks. In this work, we propose an…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Chuanzhi Xu , Haoxian Zhou , Langyi Chen , Yuk Ying Chung , Qiang Qu

Comparing to image inpainting, image outpainting receives less attention due to two challenges in it. The first challenge is how to keep the spatial and content consistency between generated images and original input. The second challenge…

Computer Vision and Pattern Recognition · Computer Science 2020-01-01 Zongxin Yang , Jian Dong , Ping Liu , Yi Yang , Shuicheng Yan

Abstract--- Exploiting the spatial structure in scene images is a key research direction for scene recognition. Due to the large intra-class structural diversity, building and modeling flexible structural layout to adapt various image…

Computer Vision and Pattern Recognition · Computer Science 2020-06-24 Gongwei Chen , Xinhang Song , Haitao Zeng , Shuqiang Jiang

Cross-view geo-localization aims to match images of the same target from different platforms, e.g., drone and satellite. It is a challenging task due to the changing appearance of targets and environmental content from different views. Most…

Computer Vision and Pattern Recognition · Computer Science 2024-11-04 Quan Chen , Tingyu Wang , Zihao Yang , Haoran Li , Rongfeng Lu , Yaoqi Sun , Bolun Zheng , Chenggang Yan

Scene parsing is a great challenge for real-time semantic segmentation. Although traditional semantic segmentation networks have made remarkable leap-forwards in semantic accuracy, the performance of inference speed is unsatisfactory.…

Computer Vision and Pattern Recognition · Computer Science 2023-06-06 Zhengbin Zhang , Zhenhao Xu , Xingsheng Gu , Juan Xiong

Spatial time series forecasting problems arise in a broad range of applications, such as environmental and transportation problems. These problems are challenging because of the existence of specific spatial, short-term and long-term…

Machine Learning · Computer Science 2019-02-05 Reza Asadi , Amelia Regan

Superpixels provide an efficient low/mid-level representation of image data, which greatly reduces the number of image primitives for subsequent vision tasks. Existing superpixel algorithms are not differentiable, making them difficult to…

Computer Vision and Pattern Recognition · Computer Science 2018-07-27 Varun Jampani , Deqing Sun , Ming-Yu Liu , Ming-Hsuan Yang , Jan Kautz

Image stitching for two images without a global transformation between them is notoriously difficult. In this paper, noticing the importance of planar structure under perspective geometry, we propose a new image stitching method which…

Computer Vision and Pattern Recognition · Computer Science 2021-07-07 Aocheng Li , Jie Guo , Yanwen Guo

Pooling operations, which can be calculated at low cost and serve as a linear or nonlinear transfer function for data reduction, are found in almost every modern neural network. Countless modern approaches have already tackled replacing the…

Computer Vision and Pattern Recognition · Computer Science 2021-01-19 Wolfgang Fuhl , Enkelejda Kasneci

Spatial pooling (SP) and cross-channel pooling (CCP) operators have been applied to aggregate spatial features and pixel-wise features from feature maps in deep neural networks (DNNs), respectively. Their main goal is to reduce computation…

Computer Vision and Pattern Recognition · Computer Science 2024-08-16 Xiaoqing Zhang , Qiushi Nie , Zunjie Xiao , Jilu Zhao , Xiao Wu , Pengxin Guo , Runzhi Li , Jin Liu , Yanjie Wei , Yi Pan

In recent years, geotagged social media has become popular as a novel source for geographic knowledge discovery. Ground-level images and videos provide a different perspective than overhead imagery and can be applied to a range of…

Computer Vision and Pattern Recognition · Computer Science 2018-05-07 Xueqing Deng , Yi Zhu , Shawn Newsam

Real-time scene parsing is a fundamental feature for autonomous driving vehicles with multiple cameras. In this letter we demonstrate that sharing semantics between cameras with different perspectives and overlapped views can boost the…

Computer Vision and Pattern Recognition · Computer Science 2020-01-14 Zhenzhen Xiang , Anbo Bao , Jie Li , Jianbo Su

Existing approaches for fine-grained visual recognition focus on learning marginal region-based representations while neglecting the spatial and scale misalignments, leading to inferior performance. In this paper, we propose the…

Computer Vision and Pattern Recognition · Computer Science 2020-01-07 Lizhao Gao , Haihua Xu , Chong Sun , Junling Liu , Yu-Wing Tai

Image steganalysis is a special binary classification problem that aims to classify natural cover images and suspected stego images which are the results of embedding very weak secret message signals into covers. How to effectively suppress…

Multimedia · Computer Science 2019-12-16 Songtao Wu , Sheng-hua Zhong , Yan Liu , Mengyuan Liu

Saliency maps are widely used in the computer vision community for interpreting neural network classifiers. However, due to the randomness of training samples and optimization algorithms, the resulting saliency maps suffer from a…

Computer Vision and Pattern Recognition · Computer Science 2024-12-20 Shizhan Gong , Jingwei Zhang , Qi Dou , Farzan Farnia