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Resampling detection plays an important role in identifying image tampering, such as image splicing. Currently, the resampling detection is still difficult in recompressed images, which are yielded by applying resampling followed by…

Computer Vision and Pattern Recognition · Computer Science 2019-05-13 Gang Cao , Antao Zhou , Xianglin Huang , Gege Song , Lifang Yang , Yonggui Zhu

Standard Convolutional Neural Networks (CNNs) designed for computer vision tasks tend to have large intermediate activation maps. These require large working memory and are thus unsuitable for deployment on resource-constrained devices…

Computer Vision and Pattern Recognition · Computer Science 2020-10-26 Oindrila Saha , Aditya Kusupati , Harsha Vardhan Simhadri , Manik Varma , Prateek Jain

Table look-up realization of image restoration CNNs has the potential of achieving competitive image quality while being much faster and resource frugal than the straightforward CNN implementation. The main technical challenge facing the…

Computer Vision and Pattern Recognition · Computer Science 2025-10-27 Xi Zhang , Xiaolin Wu

As image tampering becomes ever more sophisticated and commonplace, the need for image forensics algorithms that can accurately and quickly detect forgeries grows. In this paper, we revisit the ideas of image querying and retrieval to…

Computer Vision and Pattern Recognition · Computer Science 2019-04-12 Joel Brogan , Paolo Bestagini , Aparna Bharati , Allan Pinto , Daniel Moreira , Kevin Bowyer , Patrick Flynn , Anderson Rocha , Walter Scheirer

Even though image signals are typically acquired on a regular two dimensional grid, there exist many scenarios where non-regular sampling is possible. Non-regular sampling can remove aliasing. In terms of the non-regular sampling patterns,…

Image and Video Processing · Electrical Eng. & Systems 2022-03-02 Simon Grosche , Jürgen Seiler , André Kaup

Fine-grained temporal action parsing is important in many applications, such as daily activity understanding, human motion analysis, surgical robotics and others requiring subtle and precise operations in a long-term period. In this paper…

Computer Vision and Pattern Recognition · Computer Science 2019-05-28 Yan Zhang , Siyu Tang , Krikamol Muandet , Christian Jarvers , Heiko Neumann

We propose a novel image sampling method for differentiable image transformation in deep neural networks. The sampling schemes currently used in deep learning, such as Spatial Transformer Networks, rely on bilinear interpolation, which…

Computer Vision and Pattern Recognition · Computer Science 2019-09-11 Wei Jiang , Weiwei Sun , Andrea Tagliasacchi , Eduard Trulls , Kwang Moo Yi

In the framework of convolutional neural networks, downsampling is often performed with an average-pooling, where all the activations are treated equally, or with a max-pooling operation that only retains an element with maximum activation…

Computer Vision and Pattern Recognition · Computer Science 2021-09-06 Adrien Deliège , Maxime Istasse , Ashwani Kumar , Christophe De Vleeschouwer , Marc Van Droogenbroeck

In convolutional neural networks (CNNs), pooling operations play important roles such as dimensionality reduction and deformation compensation. In general, max pooling, which is the most widely used operation for local pooling, is performed…

Computer Vision and Pattern Recognition · Computer Science 2020-08-07 Takato Otsuzuki , Hideaki Hayashi , Yuchen Zheng , Seiichi Uchida

Community detection is of considerable importance for analyzing the structure and function of complex networks. Many real-world networks may possess community structures at multiple scales, and recently, various multi-resolution methods…

Physics and Society · Physics 2015-09-01 Ju Xiang , Yan-Ni Tang , Yuan-Yuan Gao , Yan Zhang , Ke Deng , Xiao-Ke Xu , Ke Hu

Convolutional Neural Networks (CNNs) use pooling to decrease the size of activation maps. This process is crucial to increase the receptive fields and to reduce computational requirements of subsequent convolutions. An important feature of…

Computer Vision and Pattern Recognition · Computer Science 2021-03-19 Alexandros Stergiou , Ronald Poppe , Grigorios Kalliatakis

Max- and average-pooling are the most popular pooling methods for downsampling in convolutional neural networks. In this paper, we compare different pooling methods that generalize both max- and average-pooling. Furthermore, we propose…

Computer Vision and Pattern Recognition · Computer Science 2021-03-03 Florentin Bieder , Robin Sandkühler , Philippe C. Cattin

Image resampling is a necessary component of any operation that changes the size of an image or its geometry. Methods tuned for natural image upsampling (roughly speaking, image enlargement) are analyzed and developed with a focus on their…

Graphics · Computer Science 2015-03-20 Chantal Racette

Several recent approaches showed how the representations learned by Convolutional Neural Networks can be repurposed for novel tasks. Most commonly it has been shown that the activation features of the last fully connected layers (fc7 or…

Computer Vision and Pattern Recognition · Computer Science 2015-09-22 Arsalan Mousavian , Jana Kosecka

Convolutional neural networks (CNNs) have achieved remarkable performance in many applications, especially in image recognition tasks. As a crucial component of CNNs, sub-sampling plays an important role for efficient training or invariance…

Machine Learning · Computer Science 2020-03-17 Hayoung Eom , Heeyoul Choi

Generic object detection algorithms have proven their excellent performance in recent years. However, object detection on underwater datasets is still less explored. In contrast to generic datasets, underwater images usually have color…

Computer Vision and Pattern Recognition · Computer Science 2020-03-25 Wei-Hong Lin , Jia-Xing Zhong , Shan Liu , Thomas Li , Ge Li

A number of recent studies have shown that a Deep Convolutional Neural Network (DCNN) pretrained on a large dataset can be adopted as a universal image description which leads to astounding performance in many visual classification tasks.…

Computer Vision and Pattern Recognition · Computer Science 2014-12-01 Lingqiao Liu , Chunhua Shen , Anton van den Hengel

We consider some iterative methods for finding the best interpolation data in the images compression with noise. The interpolation data consists of the set of pixels and their grey/color values. The aim in the iterative approach is to allow…

Analysis of PDEs · Mathematics 2022-09-30 Zakaria Belhachmi , Thomas Jacumin

The ROI (region-of-interest) based pooling method performs pooling operations on the cropped ROI regions for various samples and has shown great success in the object detection methods. It compresses the model size while preserving the…

Computer Vision and Pattern Recognition · Computer Science 2019-11-06 Yuxuan Sun , Chong Sun , Dong Wang , You He , Huchuan Lu

Learning invariant representations from images is one of the hardest challenges facing computer vision. Spatial pooling is widely used to create invariance to spatial shifting, but it is restricted to convolutional models. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2013-03-19 Sainbayar Sukhbaatar , Takaki Makino , Kazuyuki Aihara