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The rapid growth of visual data under stringent storage and bandwidth constraints makes extremely low-bitrate image compression increasingly important. While Vector Quantization (VQ) offers strong structural fidelity, existing methods lack…

计算机视觉与模式识别 · 计算机科学 2026-05-05 Shiyin Jiang , Wei Long , Minghao Han , Zhenghao Chen , Ce Zhu , Shuhang Gu

Recent studies have shown that neural network (NN) based image classifiers are highly vulnerable to adversarial examples, which poses a threat to security-sensitive image recognition task. Prior work has shown that JPEG compression can…

计算机视觉与模式识别 · 计算机科学 2021-06-28 Cheng Zhang , Pan Gao

Image compression-based approaches for defending against the adversarial-example attacks, which threaten the safety use of deep neural networks (DNN), have been investigated recently. However, prior works mainly rely on directly tuning…

计算机视觉与模式识别 · 计算机科学 2019-04-17 Zihao Liu , Qi Liu , Tao Liu , Nuo Xu , Xue Lin , Yanzhi Wang , Wujie Wen

Deep learning techniques have shown promising results in image compression, with competitive bitrate and image reconstruction quality from compressed latent. However, while image compression has progressed towards a higher peak…

计算机视觉与模式识别 · 计算机科学 2022-08-24 Kang Liu , Di Wu , Yiru Wang , Dan Feng , Benjamin Tan , Siddharth Garg

The advancement of image editing tools has enabled malicious manipulation of sensitive document images, underscoring the need for robust document image forgery detection.Though forgery detectors for natural images have been extensively…

计算机视觉与模式识别 · 计算机科学 2025-07-23 Kahim Wong , Jicheng Zhou , Haiwei Wu , Yain-Whar Si , Jiantao Zhou

Manipulated images are a threat to consumers worldwide, when they are used to spread disinformation. Therefore, Comprint enables forgery detection by utilizing JPEG-compression fingerprints. This paper evaluates the impact of the training…

多媒体 · 计算机科学 2023-03-08 Hannes Mareen , Dante Vanden Bussche , Glenn Van Wallendael , Luisa Verdoliva , Peter Lambert

We present DOCFORGE-BENCH, the first unified zero-shot benchmark for document forgery detection, evaluating 14 methods across eight datasets spanning text tampering, receipt forgery, and identity document manipulation. Unlike…

计算机视觉与模式识别 · 计算机科学 2026-03-11 Zengqi Zhao , Weidi Xia , En Wei , Yan Zhang , Jane Mo , Tiannan Zhang , Yuanqin Dai , Zexi Chen , Yiran Tao , Simiao Ren

The diffusion model has gained popularity in vision applications due to its remarkable generative performance and versatility. However, high storage and computation demands, resulting from the model size and iterative generation, hinder its…

计算机视觉与模式识别 · 计算机科学 2023-12-12 Junhyuk So , Jungwon Lee , Daehyun Ahn , Hyungjun Kim , Eunhyeok Park

Neural network quantization is becoming an industry standard to efficiently deploy deep learning models on hardware platforms, such as CPU, GPU, TPU, and FPGAs. However, we observe that the conventional quantization approaches are…

机器学习 · 计算机科学 2019-04-19 Ji Lin , Chuang Gan , Song Han

Although two-stage Vector Quantized (VQ) generative models allow for synthesizing high-fidelity and high-resolution images, their quantization operator encodes similar patches within an image into the same index, resulting in a repeated…

计算机视觉与模式识别 · 计算机科学 2022-09-20 Chuanxia Zheng , Long Tung Vuong , Jianfei Cai , Dinh Phung

Based on the powerful feature extraction ability of deep learning architecture, recently, deep-learning based watermarking algorithms have been widely studied. The basic framework of such algorithm is the auto-encoder like end-to-end…

计算机视觉与模式识别 · 计算机科学 2021-08-19 Zhaoyang Jia , Han Fang , Weiming Zhang

The instability in GAN training has been a long-standing problem despite remarkable research efforts. We identify that instability issues stem from difficulties of performing feature matching with mini-batch statistics, due to a fragile…

机器学习 · 计算机科学 2020-07-16 Yang Zhao , Chunyuan Li , Ping Yu , Jianfeng Gao , Changyou Chen

The robustness of object detection algorithms plays a prominent role in real-world applications, especially in uncontrolled environments due to distortions during image acquisition. It has been proven that the performance of object…

计算机视觉与模式识别 · 计算机科学 2022-10-31 Ayman Beghdadi , Malik Mallem , Lotfi Beji

Lossy compression brings artifacts into the compressed image and degrades the visual quality. In recent years, many compression artifacts removal methods based on convolutional neural network (CNN) have been developed with great success.…

图像与视频处理 · 电气工程与系统科学 2020-10-22 Jianwei Li , Yongtao Wang , Haihua Xie , Kai-Kuang Ma

Removing degradation from document images not only improves their visual quality and readability, but also enhances the performance of numerous automated document analysis and recognition tasks. However, existing regression-based methods…

计算机视觉与模式识别 · 计算机科学 2023-08-10 Zongyuan Yang , Baolin Liu , Yongping Xiong , Lan Yi , Guibin Wu , Xiaojun Tang , Ziqi Liu , Junjie Zhou , Xing Zhang

Data-Free Quantization (DFQ) enables the quantization of Vision Transformers (ViTs) without requiring access to data, allowing for the deployment of ViTs on devices with limited resources. In DFQ, the quantization model must be calibrated…

计算机视觉与模式识别 · 计算机科学 2025-07-22 Yujia Tong , Jingling Yuan , Tian Zhang , Jianquan Liu , Chuang Hu

Despite the widespread use of text-to-image diffusion models across various tasks, their computational and memory demands limit practical applications. To mitigate this issue, quantization of diffusion models has been explored. It reduces…

计算机视觉与模式识别 · 计算机科学 2025-02-13 Hyogon Ryu , NaHyeon Park , Hyunjung Shim

Image defocus is inherent in the physics of image formation caused by the optical aberration of lenses, providing plentiful information on image quality. Unfortunately, existing quality enhancement approaches for compressed images neglect…

图像与视频处理 · 电气工程与系统科学 2023-03-14 Qunliang Xing , Mai Xu , Xin Deng , Yichen Guo

Detection of inconsistencies of double JPEG artefacts across different image regions is often used to detect local image manipulations, like image splicing, and to localize them. In this paper, we move one step further, proposing an…

图像与视频处理 · 电气工程与系统科学 2022-01-20 Yakun Niu , Benedetta Tondi , Yao Zhao , Rongrong Ni , Mauro Barni

Neural image compression has been shown to outperform traditional image codecs in terms of rate-distortion performance. However, quantization introduces errors in the compression process, which can degrade the quality of the compressed…

机器学习 · 计算机科学 2024-03-27 Wei Luo , Bo Chen