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Images captured in weak illumination conditions could seriously degrade the image quality. Solving a series of degradation of low-light images can effectively improve the visual quality of images and the performance of high-level visual…

Computer Vision and Pattern Recognition · Computer Science 2022-12-07 Jiang Hai , Zhu Xuan , Songchen Han , Ren Yang , Yutong Hao , Fengzhu Zou , Fang Lin

Image-to-image translation (IIT) has made much progress recently with the development of adversarial learning. In most of the recent work, an adversarial loss is utilized to match the distributions of the translated and target image sets.…

Computer Vision and Pattern Recognition · Computer Science 2020-09-03 Ibrahim Batuhan Akkaya , Ugur Halici

Visual domain gaps often impact object detection performance. Image-to-image translation can mitigate this effect, where contrastive approaches enable learning of the image-to-image mapping under unsupervised regimes. However, existing…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Danai Triantafyllidou , Sarah Parisot , Ales Leonardis , Steven McDonagh

Most multi-view 3D reconstruction algorithms, especially when shape-from-shading cues are used, assume that object appearance is predominantly diffuse. To alleviate this restriction, we introduce S2Dnet, a generative adversarial network for…

Computer Vision and Pattern Recognition · Computer Science 2018-07-31 Shihao Wu , Hui Huang , Tiziano Portenier , Matan Sela , Danny Cohen-Or , Ron Kimmel , Matthias Zwicker

Mixed precision training (MPT) is becoming a practical technique to improve the speed and energy efficiency of training deep neural networks by leveraging the fast hardware support for IEEE half-precision floating point that is available in…

Machine Learning · Computer Science 2019-10-29 Ruizhe Zhao , Brian Vogel , Tanvir Ahmed

Human visual perception naturally evaluates image quality across multiple scales, a hierarchical process that existing blind image quality assessment (BIQA) algorithms struggle to replicate effectively. This limitation stems from a…

Computer Vision and Pattern Recognition · Computer Science 2026-02-13 Runze Hu , Zihao Huang , Xudong Li , Bohan Fu , Yan Zhang , Sicheng Zhao

Real-world image restoration deals with the recovery of images suffering from an unknown degradation. This task is typically addressed while being given only degraded images, without their corresponding ground-truth versions. In this hard…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Sean Man , Guy Ohayon , Ron Raphaeli , Michael Elad

Low-dose CT (LDCT) imaging is widely used to reduce radiation exposure to mitigate high exposure side effects, but often suffers from noise and artifacts that affect diagnostic accuracy. To tackle this issue, deep learning models have been…

Computer Vision and Pattern Recognition · Computer Science 2025-11-04 Taifour Yousra , Beghdadi Azeddine , Marie Luong , Zuheng Ming

MR images scanned at low magnetic field ($<1$T) have lower resolution in the slice direction and lower contrast, due to a relatively small signal-to-noise ratio (SNR) than those from high field (typically 1.5T and 3T). We adapt the recent…

Most existing Re-IDentification (Re-ID) methods are highly dependent on precise bounding boxes that enable images to be aligned with each other. However, due to the challenging practical scenarios, current detection models often produce…

Computer Vision and Pattern Recognition · Computer Science 2019-05-07 Feng Zheng , Cheng Deng , Xing Sun , Xinyang Jiang , Xiaowei Guo , Zongqiao Yu , Feiyue Huang , Rongrong Ji

Unpaired Image-to-image Translation is a new rising and challenging vision problem that aims to learn a mapping between unaligned image pairs in diverse domains. Recent advances in this field like MUNIT and DRIT mainly focus on…

Computer Vision and Pattern Recognition · Computer Science 2019-05-07 Zhiqiang Shen , Mingyang Huang , Jianping Shi , Xiangyang Xue , Thomas Huang

The quality of visual input is very important for both human and machine perception. Consequently many processing techniques exist that deal with different distortions. Usually image processing is applied freely and lacks redundancy…

Image and Video Processing · Electrical Eng. & Systems 2021-02-10 Sascha Xu , Jan Bauer , Benjamin Axmann

We introduce a new neural signal model designed for efficient high-resolution representation of large-scale signals. The key innovation in our multiscale implicit neural representation (MINER) is an internal representation via a Laplacian…

Computer Vision and Pattern Recognition · Computer Science 2022-07-19 Vishwanath Saragadam , Jasper Tan , Guha Balakrishnan , Richard G. Baraniuk , Ashok Veeraraghavan

To enhance low-light images to normally-exposed ones is highly ill-posed, namely that the mapping relationship between them is one-to-many. Previous works based on the pixel-wise reconstruction losses and deterministic processes fail to…

Image and Video Processing · Electrical Eng. & Systems 2021-09-14 Yufei Wang , Renjie Wan , Wenhan Yang , Haoliang Li , Lap-Pui Chau , Alex C. Kot

When one captures images in low-light conditions, the images often suffer from low visibility. This poor quality may significantly degrade the performance of many computer vision and multimedia algorithms that are primarily designed for…

Computer Vision and Pattern Recognition · Computer Science 2016-07-26 Xiaojie Guo

Hallucinations in Multimodal Large Language Models (MLLMs) where generated responses fail to accurately reflect the given image pose a significant challenge to their reliability. To address this, we introduce ConVis, a novel training-free…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Yeji Park , Deokyeong Lee , Junsuk Choe , Buru Chang

Learning a typical image enhancement pipeline involves minimization of a loss function between enhanced and reference images. While L1 and L2 losses are perhaps the most widely used functions for this purpose, they do not necessarily lead…

Computer Vision and Pattern Recognition · Computer Science 2017-12-11 Hossein Talebi , Peyman Milanfar

Blind image deblurring is a challenging problem in computer vision, which aims to restore both the blur kernel and the latent sharp image from only a blurry observation. Inspired by the prevalent self-example prior in image…

Computer Vision and Pattern Recognition · Computer Science 2019-06-12 Yuanchao Bai , Huizhu Jia , Ming Jiang , Xianming Liu , Xiaodong Xie , Wen Gao

In large vision-language models (LVLMs), images serve as inputs that carry a wealth of information. As the idiom "A picture is worth a thousand words" implies, representing a single image in current LVLMs can require hundreds or even…

Computer Vision and Pattern Recognition · Computer Science 2025-02-28 Long Xing , Qidong Huang , Xiaoyi Dong , Jiajie Lu , Pan Zhang , Yuhang Zang , Yuhang Cao , Conghui He , Jiaqi Wang , Feng Wu , Dahua Lin

In this paper, a method for enhancing low contrast images is proposed. This method, called Gaussian Mixture Model based Contrast Enhancement (GMMCE), brings into play the Gaussian mixture modeling of histograms to model the content of the…

Multimedia · Computer Science 2015-07-14 Mohsen Abdoli , Hossein Sarikhani , Mohammad Ghanbari , Patrice Brault