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Many machine learning models are susceptible to adversarial attacks, with decision-based black-box attacks representing the most critical threat in real-world applications. These attacks are extremely stealthy, generating adversarial…

Machine Learning · Computer Science 2024-06-13 Feiyang Wang , Xingquan Zuo , Hai Huang , Gang Chen

One popular approach for blind deconvolution is to formulate a maximum a posteriori (MAP) problem with sparsity priors on the gradients of the latent image, and then alternatingly estimate the blur kernel and the latent image. While several…

Computer Vision and Pattern Recognition · Computer Science 2017-08-29 Sunghyun Cho , Seungyong Lee

We propose an automatic parameter selection strategy for the problem of image super-resolution for images corrupted by blur and additive white Gaussian noise with unknown standard deviation. The proposed approach exploits the structure of…

Numerical Analysis · Mathematics 2021-08-31 Monica Pragliola , Luca Calatroni , Alessandro Lanza , Fiorella Sgallari

Color constancy aims to restore the constant colors of a scene under different illuminants. However, due to the existence of camera spectral sensitivity, the network trained on a certain sensor, cannot work well on others. Also, since the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-22 Xiaodong Cun , Zhendong Wang , Chi-Man Pun , Jianzhuang Liu , Wengang Zhou , Xu Jia , Houqiang Li

Ultra-wideband (UWB) is the state-of-the-art and most popular technology for wireless localization. Nevertheless, precise ranging and localization in non-line-of-sight (NLoS) conditions is still an open research topic. Indeed, multipath…

Machine Learning · Computer Science 2021-05-06 Simone Angarano , Vittorio Mazzia , Francesco Salvetti , Giovanni Fantin , Marcello Chiaberge

Fine-tuning is widely applied in image classification tasks as a transfer learning approach. It re-uses the knowledge from a source task to learn and obtain a high performance in target tasks. Fine-tuning is able to alleviate the challenge…

Computer Vision and Pattern Recognition · Computer Science 2022-07-27 Xuyang Shen , Jo Plested , Sabrina Caldwell , Yiran Zhong , Tom Gedeon

Deep learning-based image enhancement methods show significant advantages in reducing noise and improving visibility in low-light conditions. These methods are typically based on one-to-one mapping, where the model learns a direct…

Computer Vision and Pattern Recognition · Computer Science 2025-03-12 Miao Zhang , Jun Yin , Pengyu Zeng , Yiqing Shen , Shuai Lu , Xueqian Wang

Over the last few years, deep learning based approaches have achieved outstanding improvements in natural image matting. Many of these methods can generate visually plausible alpha estimations, but typically yield blurry structures or…

Computer Vision and Pattern Recognition · Computer Science 2020-01-14 Yaoyi Li , Hongtao Lu

Real-time rendering with global illumination is crucial to afford the user realistic experience in virtual environments. We present a learning-based estimator to predict diffuse indirect illumination in screen space, which then is combined…

Graphics · Computer Science 2025-11-06 Meng Gai , Guoping Wang , Sheng Li

Benefited from the deep learning, image Super-Resolution has been one of the most developing research fields in computer vision. Depending upon whether using a discriminator or not, a deep convolutional neural network can provide an image…

Computer Vision and Pattern Recognition · Computer Science 2020-04-28 Zhi-Song Liu , Wan-Chi Siu , Li-Wen Wang , Chu-Tak Li , Marie-Paule Cani , Yui-Lam Chan

The joint optimization of the sensor trajectory and 3D map is a crucial characteristic of bundle adjustment (BA), essential for autonomous driving. This paper presents $\nu$-DBA, a novel framework implementing geometric dense bundle…

Computer Vision and Pattern Recognition · Computer Science 2024-04-30 Yunxuan Mao , Bingqi Shen , Yifei Yang , Kai Wang , Rong Xiong , Yiyi Liao , Yue Wang

Light adaptation or brightness correction is a key step in improving the contrast and visual appeal of an image. There are multiple light-related tasks (for example, low-light enhancement and exposure correction) and previous studies have…

Computer Vision and Pattern Recognition · Computer Science 2023-04-07 Kai-Fu Yang , Cheng Cheng , Shi-Xuan Zhao , Xian-Shi Zhang , Yong-Jie Li

Portrait harmonization aims to composite a subject into a new background, adjusting its lighting and color to ensure harmony with the background scene. Existing harmonization techniques often only focus on adjusting the global color and…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Mengwei Ren , Wei Xiong , Jae Shin Yoon , Zhixin Shu , Jianming Zhang , HyunJoon Jung , Guido Gerig , He Zhang

Image colorization is a challenging problem due to multi-modal uncertainty and high ill-posedness. Directly training a deep neural network usually leads to incorrect semantic colors and low color richness. While transformer-based methods…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Xiaoyang Kang , Tao Yang , Wenqi Ouyang , Peiran Ren , Lingzhi Li , Xuansong Xie

Biomedical imaging is unequivocally dependent on the ability to reconstruct interpretable and high-quality images from acquired sensor data. This reconstruction process is pivotal across many applications, spanning from magnetic resonance…

Signal Processing · Electrical Eng. & Systems 2019-09-24 Ben Luijten , Regev Cohen , Frederik J. de Bruijn , Harold A. W. Schmeitz , Massimo Mischi , Yonina C. Eldar , Ruud J. G. van Sloun

Instruction-based image editing, which aims to modify the image faithfully according to the instruction while preserving irrelevant content unchanged, has made significant progress. However, there still lacks a comprehensive metric for…

Graphics · Computer Science 2025-06-18 Zhuoying Li , Zhu Xu , Yuxin Peng , Yang Liu

We design a novel network architecture for learning discriminative image models that are employed to efficiently tackle the problem of grayscale and color image denoising. Based on the proposed architecture, we introduce two different…

Computer Vision and Pattern Recognition · Computer Science 2018-03-28 Stamatios Lefkimmiatis

Although image super-resolution (SR) problem has experienced unprecedented restoration accuracy with deep neural networks, it has yet limited versatile applications due to the substantial computational costs. Since different input images…

Computer Vision and Pattern Recognition · Computer Science 2024-04-05 Cheeun Hong , Kyoung Mu Lee

In recent years, significant progress has been made in image recognition technology based on deep neural networks. However, improving recognition performance under low-light conditions remains a significant challenge. This study addresses…

Computer Vision and Pattern Recognition · Computer Science 2025-01-09 Seitaro Ono , Yuka Ogino , Takahiro Toizumi , Atsushi Ito , Masato Tsukada

We propose a neural network-based solution for three different tracks of 2nd International Illumination Estimation Challenge (chromaticity.iitp.ru). Our method is built on pre-trained Squeeze-Net backbone, differential 2D chroma histogram…

Computer Vision and Pattern Recognition · Computer Science 2020-10-13 Yanlin Qian , Sibo Feng , Kang Qian , Miaofeng Wang