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In recent years we have witnessed an increasing interest in applying Deep Neural Networks (DNNs) to improve the rate-distortion performance in image compression. However, the existing approaches either train a post-processing DNN on the…

Image and Video Processing · Electrical Eng. & Systems 2020-10-27 Yannick Strümpler , Ren Yang , Radu Timofte

Traditional image resizing methods usually work in pixel space and use various saliency measures. The challenge is to adjust the image shape while trying to preserve important content. In this paper we perform image resizing in feature…

Computer Vision and Pattern Recognition · Computer Science 2021-06-23 Moab Arar , Dov Danon , Daniel Cohen-Or , Ariel Shamir

In this paper, a copy-move forgery detection method based on Convolutional Kernel Network is proposed. Different from methods based on conventional hand-crafted features, Convolutional Kernel Network is a kind of data-driven local…

Computer Vision and Pattern Recognition · Computer Science 2017-07-06 Yaqi Liu , Qingxiao Guan , Xianfeng Zhao

As neural networks become able to generate realistic artificial images, they have the potential to improve movies, music, video games and make the internet an even more creative and inspiring place. Yet, the latest technology potentially…

Computer Vision and Pattern Recognition · Computer Science 2022-09-02 Moritz Wolter , Felix Blanke , Raoul Heese , Jochen Garcke

An increasing number of digital images are being shared and accessed through websites, media, and social applications. Many of these images have been modified and are not authentic. Recent advances in the use of deep convolutional neural…

Computer Vision and Pattern Recognition · Computer Science 2018-05-08 David Güera , Yu Wang , Luca Bondi , Paolo Bestagini , Stefano Tubaro , Edward J. Delp

In recent years, deep learning-based image compression, particularly through generative models, has emerged as a pivotal area of research. Despite significant advancements, challenges such as diminished sharpness and quality in…

Image and Video Processing · Electrical Eng. & Systems 2024-09-18 Ryugo Morita , Hitoshi Nishimura , Ko Watanabe , Andreas Dengel , Jinjia Zhou

In the last few years, we have witnessed the rise of a series of deep learning methods to generate synthetic images that look extremely realistic. These techniques prove useful in the movie industry and for artistic purposes. However, they…

Computer Vision and Pattern Recognition · Computer Science 2022-03-07 Sara Mandelli , Nicolò Bonettini , Paolo Bestagini , Stefano Tubaro

With the spread of tampered images, locating the tampered regions in digital images has drawn increasing attention. The existing image tampering localization methods, however, suffer from severe performance degradation when the tampered…

Computer Vision and Pattern Recognition · Computer Science 2022-11-09 Peiyu Zhuang , Haodong Li , Rui Yang , Jiwu Huang

Videos are prone to tampering attacks that alter the meaning and deceive the audience. Previous video forgery detection schemes find tiny clues to locate the tampered areas. However, attackers can successfully evade supervision by…

Computer Vision and Pattern Recognition · Computer Science 2022-07-08 Yangming Zhou , Qichao Ying , Xiangyu Zhang , Zhenxing Qian , Sheng Li , Xinpeng Zhang

Powerful manipulation techniques have made digital image forgeries be easily created and widespread without leaving visual anomalies. The blind localization of tampered regions becomes quite significant for image forensics. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Kun Guo , Haochen Zhu , Gang Cao

In recent years, image manipulation is becoming increasingly more accessible, yielding more natural-looking images, owing to the modern tools in image processing and computer vision techniques. The task of the identification of forged…

Computer Vision and Pattern Recognition · Computer Science 2020-02-04 Akash Kumar , Arnav Bhavasar

Image matting is a fundamental computer vision problem and has many applications. Previous algorithms have poor performance when an image has similar foreground and background colors or complicated textures. The main reasons are prior…

Computer Vision and Pattern Recognition · Computer Science 2017-04-12 Ning Xu , Brian Price , Scott Cohen , Thomas Huang

Convolutional neural network based face forgery detection methods have achieved remarkable results during training, but struggled to maintain comparable performance during testing. We observe that the detector is prone to focus more on…

Computer Vision and Pattern Recognition · Computer Science 2022-07-20 Jiahao Liang , Huafeng Shi , Weihong Deng

Scientific image tampering is a problem that affects not only authors but also the general perception of the research community. Although previous researchers have developed methods to identify tampering in natural images, these methods may…

Computer Vision and Pattern Recognition · Computer Science 2020-03-06 Ziyue Xiang , Daniel E. Acuna

Neural network image classifiers are known to be vulnerable to adversarial images, i.e., natural images which have been modified by an adversarial perturbation specifically designed to be imperceptible to humans yet fool the classifier. Not…

Computer Vision and Pattern Recognition · Computer Science 2016-08-03 Gintare Karolina Dziugaite , Zoubin Ghahramani , Daniel M. Roy

We address the challenge of applying existing convolutional neural network (CNN) architectures to compressed images. Existing CNN architectures represent images as a matrix of pixel intensities with a specified dimension; this desired…

Computer Vision and Pattern Recognition · Computer Science 2019-11-22 Christopher A. George , Bradley M. West

For lossy image compression systems, we develop an algorithm, iterative refinement, to improve the decoder's reconstruction compared to standard decoding techniques. Specifically, we propose a recurrent neural network approach for…

Computer Vision and Pattern Recognition · Computer Science 2018-11-13 Alexander G. Ororbia , Ankur Mali , Jian Wu , Scott O'Connell , David Miller , C. Lee Giles

Image forensics, aiming to ensure the authenticity of the image, has made great progress in dealing with common image manipulation such as copy-move, splicing, and inpainting in the past decades. However, only a few researchers pay…

Computer Vision and Pattern Recognition · Computer Science 2022-04-26 Yushu Zhang , Nuo Chen , Shuren Qi , Mingfu Xue , Xiaochun Cao

Rapid spread of false images and videos on online platforms is an emerging problem. Anyone may add, delete, clone or modify people and entities from an image using various editing software which are readily available. This generates false…

Computer Vision and Pattern Recognition · Computer Science 2025-06-09 Shayantani Kar , B. Shresth Bhimrajka , Aditya Kumar , Sahil Gupta , Sourav Ghosh , Subhamita Mukherjee , Shauvik Paul

Deep neural networks give state-of-the-art accuracy for reconstructing images from few and noisy measurements, a problem arising for example in accelerated magnetic resonance imaging (MRI). However, recent works have raised concerns that…

Image and Video Processing · Electrical Eng. & Systems 2021-06-14 Mohammad Zalbagi Darestani , Akshay S. Chaudhari , Reinhard Heckel