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This paper introduces a novel framework for end-to-end learned video coding. Image compression is generalized through conditional coding to exploit information from reference frames, allowing to process intra and inter frames with the same…

图像与视频处理 · 电气工程与系统科学 2021-04-29 Théo Ladune , Pierrick Philippe , Wassim Hamidouche , Lu Zhang , Olivier Déforges

Transferring large amount of high resolution images over limited bandwidth is an important but very challenging task. Compressing images using extremely low bitrates (<0.1 bpp) has been studied but it often results in low quality images of…

图像与视频处理 · 电气工程与系统科学 2022-11-16 Zhihong Pan , Xin Zhou , Hao Tian

We apply the DiffC algorithm (Theis et al. 2022) to Stable Diffusion 1.5, 2.1, XL, and Flux-dev, and demonstrate that these pretrained models are remarkably capable lossy image compressors. A principled algorithm for lossy compression using…

计算机视觉与模式识别 · 计算机科学 2025-01-20 Jeremy Vonderfecht , Feng Liu

Adversarial attacks on image models threaten system robustness by introducing imperceptible perturbations that cause incorrect predictions. We investigate human-aligned learned lossy compression as a defense mechanism, comparing two learned…

计算机视觉与模式识别 · 计算机科学 2025-04-17 Samuel Räber , Andreas Plesner , Till Aczel , Roger Wattenhofer

Recently, more and more images are compressed and sent to the back-end devices for the machine analysis tasks~(\textit{e.g.,} object detection) instead of being purely watched by humans. However, most traditional or learned image codecs are…

图像与视频处理 · 电气工程与系统科学 2022-06-14 Guo Lu , Xingtong Ge , Tianxiong Zhong , Jing Geng , Qiang Hu

Autoencoder-based structures have dominated recent learned image compression methods. However, the inherent information loss associated with autoencoders limits their rate-distortion performance at high bit rates and restricts their…

计算机视觉与模式识别 · 计算机科学 2025-03-31 Hanyue Tu , Siqi Wu , Li Li , Wengang Zhou , Houqiang Li

This paper proposes a novel Non-Local Attention optmization and Improved Context modeling-based image compression (NLAIC) algorithm, which is built on top of the deep nerual network (DNN)-based variational auto-encoder (VAE) structure. Our…

图像与视频处理 · 电气工程与系统科学 2023-02-20 Tong Chen , Haojie Liu , Zhan Ma , Qiu Shen , Xun Cao , Yao Wang

Although deep learning based image compression methods have achieved promising progress these days, the performance of these methods still cannot match the latest compression standard Versatile Video Coding (VVC). Most of the recent…

图像与视频处理 · 电气工程与系统科学 2021-08-29 Yueqi Xie , Ka Leong Cheng , Qifeng Chen

Image compression is an essential approach for decreasing the size in bytes of the image without deteriorating the quality of it. Typically, classic algorithms are used but recently deep-learning has been successfully applied. In this work,…

图像与视频处理 · 电气工程与系统科学 2019-06-17 Nicoló Savioli

Deep learning models have significantly improved the visual quality and accuracy on compressive sensing recovery. In this paper, we propose an algorithm for signal reconstruction from compressed measurements with image priors captured by a…

机器学习 · 计算机科学 2020-03-20 Shaojie Xu , Sihan Zeng , Justin Romberg

In this age of information, images are a critical medium for storing and transmitting information. With the rapid growth of image data amount, visual compression and visual data perception are two important research topics attracting a lot…

图像与视频处理 · 电气工程与系统科学 2024-07-02 Yuefeng Zhang , Chuanmin Jia , Jiannhui Chang , Siwei Ma

In this study, we propose a novel scheme for systematic improvement of lossless image compression coders from the point of view of the universal codes in information theory. In the proposed scheme, we describe a generative model class of…

信息论 · 计算机科学 2019-04-17 Yuta Nakahara , Toshiyasu Matsushima

Early works on medical image compression date to the 1980's with the impetus on deployment of teleradiology systems for high-resolution digital X-ray detectors. Commercially deployed systems during the period could compress 4,096 x 4,096…

计算机视觉与模式识别 · 计算机科学 2018-05-21 Aupendu Kar , Sri Phani Krishna Karri , Nirmalya Ghosh , Ramanathan Sethuraman , Debdoot Sheet

Lossy image coding standards such as JPEG and MPEG have successfully achieved high compression rates for human consumption of multimedia data. However, with the increasing prevalence of IoT devices, drones, and self-driving cars, machines…

计算机视觉与模式识别 · 计算机科学 2023-10-03 Chen-Hsiu Huang , Ja-Ling Wu

Lossy image compression aims to represent images in as few bits as possible while maintaining fidelity to the original. Theoretical results indicate that optimizing distortion metrics such as PSNR or MS-SSIM necessarily leads to a…

图像与视频处理 · 电气工程与系统科学 2023-08-14 Matthew J. Muckley , Alaaeldin El-Nouby , Karen Ullrich , Hervé Jégou , Jakob Verbeek

This paper presents a cross channel context model for latents in deep image compression. Generally, deep image compression is based on an autoencoder framework, which transforms the original image to latents at the encoder and recovers the…

图像与视频处理 · 电气工程与系统科学 2021-03-05 Changyue Ma , Zhao Wang , Ruling Liao , Yan Ye

Hyperspectral and multispectral image fusion allows us to overcome the hardware limitations of hyperspectral imaging systems inherent to their lower spatial resolution. Nevertheless, existing algorithms usually fail to consider realistic…

图像与视频处理 · 电气工程与系统科学 2023-07-19 Xiuheng Wang , Ricardo Augusto Borsoi , Cédric Richard , Jie Chen

Image-based single-modality compression learning approaches have demonstrated exceptionally powerful encoding and decoding capabilities in the past few years , but suffer from blur and severe semantics loss at extremely low bitrates. To…

图像与视频处理 · 电气工程与系统科学 2023-04-27 Xuhao Jiang , Weimin Tan , Tian Tan , Bo Yan , Liquan Shen

Learned image compression (LIC) has reached the traditional hand-crafted methods such as JPEG2000 and BPG in terms of the coding gain. However, the large model size of the network prohibits the usage of LIC on resource-limited embedded…

图像与视频处理 · 电气工程与系统科学 2020-07-10 Heming Sun , Zhengxue Cheng , Masaru Takeuchi , Jiro Katto

We address the problem of compressed sensing using a deep generative prior model and consider both linear and learned nonlinear sensing mechanisms, where the nonlinear one involves either a fully connected neural network or a convolutional…

机器学习 · 计算机科学 2021-05-26 Vinayak Killedar , Praveen Kumar Pokala , Chandra Sekhar Seelamantula