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Most image super-resolution (SR) methods are developed on synthetic low-resolution (LR) and high-resolution (HR) image pairs that are constructed by a predetermined operation, e.g., bicubic downsampling. As existing methods typically learn…

图像与视频处理 · 电气工程与系统科学 2021-09-09 Sanghyun Son , Jaeha Kim , Wei-Sheng Lai , Ming-Husan Yang , Kyoung Mu Lee

Deep networks are increasingly being applied to problems involving image synthesis, e.g., generating images from textual descriptions and reconstructing an input image from a compact representation. Supervised training of image-synthesis…

机器学习 · 计算机科学 2017-01-25 Jake Snell , Karl Ridgeway , Renjie Liao , Brett D. Roads , Michael C. Mozer , Richard S. Zemel

Existing image-text modality alignment in Vision Language Models (VLMs) treats each text token equally in an autoregressive manner. Despite being simple and effective, this method results in sub-optimal cross-modal alignment by…

计算机视觉与模式识别 · 计算机科学 2024-11-06 Xin Xiao , Bohong Wu , Jiacong Wang , Chunyuan Li , Xun Zhou , Haoyuan Guo

We show that low-rank adaptation of large-scale models suffers from a low stable rank that is well below the linear algebraic rank of the subspace, degrading fine-tuning performance. To mitigate the underutilization of the allocated…

机器学习 · 计算机科学 2025-11-03 Kai Lion , Liang Zhang , Bingcong Li , Niao He

Although large vision-language models (LVLMs) have demonstrated remarkable capabilities, they are prone to hallucinations in multi-image tasks. We attribute this issue to limitations in existing attention mechanisms and insufficient…

计算机视觉与模式识别 · 计算机科学 2026-03-10 Xiaochen Yang , Hao Fang , Jiawei Kong , Yaoxin Mao , Bin Chen , Shu-Tao Xia

In this paper, we tackle the problem of enhancing real-world low-light images with significant noise in an unsupervised fashion. Conventional unsupervised learning-based approaches usually tackle the low-light image enhancement problem…

图像与视频处理 · 电气工程与系统科学 2022-03-29 Wei Xiong , Ding Liu , Xiaohui Shen , Chen Fang , Jiebo Luo

Consistency and realness have always been the two critical issues of image super-resolution. While the realness has been dramatically improved with the use of GAN prior, the state-of-the-art methods still suffer inconsistencies in local…

计算机视觉与模式识别 · 计算机科学 2022-11-28 Yinhuai Wang , Yujie Hu , Jiwen Yu , Jian Zhang

In this paper we address the problem of establishing correspondences between different instances of the same object. The problem is posed as finding the geometric transformation that aligns a given image pair. We use a convolutional neural…

计算机视觉与模式识别 · 计算机科学 2019-01-25 Zakaria Laskar , Hamed R. Tavakoli , Juho Kannala

Standard deep learning relies on Backpropagation (BP), which is constrained by biologically implausible weight symmetry and suffers from significant gradient interference within dense representations. To mitigate these bottlenecks, we…

机器学习 · 计算机科学 2026-01-30 Fanping Liu , Hua Yang , Jiasi Zou

Ambient lighting conditions play a crucial role in determining the perceptual quality of images from photographic devices. In general, inadequate transmission light and undesired atmospheric conditions jointly degrade the image quality. If…

计算机视觉与模式识别 · 计算机科学 2022-04-18 Masud An Nur Islam Fahim , Nazmus Saqib , Jung Ho Yub

We introduce a multi-scale framework for low-level vision, where the goal is estimating physical scene values from image data---such as depth from stereo image pairs. The framework uses a dense, overlapping set of image regions at multiple…

计算机视觉与模式识别 · 计算机科学 2015-04-15 Ayan Chakrabarti , Ying Xiong , Steven J. Gortler , Todd Zickler

Physical photographs now can be conveniently scanned by smartphones and stored forever as a digital version, yet the scanned photos are not restored well. One solution is to train a supervised deep neural network on many digital photos and…

计算机视觉与模式识别 · 计算机科学 2021-08-19 Man M. Ho , Jinjia Zhou

We present a general learning-based solution for restoring images suffering from spatially-varying degradations. Prior approaches are typically degradation-specific and employ the same processing across different images and different pixels…

计算机视觉与模式识别 · 计算机科学 2021-08-20 Kuldeep Purohit , Maitreya Suin , A. N. Rajagopalan , Vishnu Naresh Boddeti

Optical molecular tomographic imaging is to reconstruct the concentration distribution of photon-molecular probes in a small animal from measured photon fluence rates. The localization and quantification of molecular probes is related to…

生物物理 · 物理学 2017-07-18 Wenxiang Cong , Xavier Intes , Ge Wang

Low-light image enhancement (LLIE) aims to improve the illuminance of images due to insufficient light exposure. Recently, various lightweight learning-based LLIE methods have been proposed to handle the challenges of unfavorable prevailing…

计算机视觉与模式识别 · 计算机科学 2023-05-24 Yuantong Zhang , Baoxin Teng , Daiqin Yang , Zhenzhong Chen , Haichuan Ma , Gang Li , Wenpeng Ding

Existing unpaired low-light image enhancement approaches prefer to employ the two-way GAN framework, in which two CNN generators are deployed for enhancement and degradation separately. However, such data-driven models ignore the inherent…

计算机视觉与模式识别 · 计算机科学 2021-12-28 Jize Zhang , Haolin Wang , Xiaohe Wu , Wangmeng Zuo

We introduce PaLEnTIR, a significantly enhanced parametric level-set (PaLS) method addressing the restoration and reconstruction of piecewise constant objects. Our key contribution involves a unique PaLS formulation utilizing a single…

数值分析 · 数学 2024-02-15 Ege Ozsar , Misha Kilmer , Eric Miller , Eric de Sturler , Arvind Saibaba

Low-light imaging on mobile devices is typically challenging due to insufficient incident light coming through the relatively small aperture, resulting in a low signal-to-noise ratio. Most of the previous works on low-light image processing…

图像与视频处理 · 电气工程与系统科学 2022-09-05 Yucheng Lu , Seung-Won Jung

Portrait photo retouching is a photo retouching task that emphasizes human-region priority and group-level consistency. The lookup table-based method achieves promising retouching performance by learning image-adaptive weights to combine…

图像与视频处理 · 电气工程与系统科学 2021-12-08 Binglu Wang , Chengzhe Lu , Dawei Yan , Yongqiang Zhao

Recent image-to-image translation works have been transferred from supervised to unsupervised settings due to the expensive cost of capturing or labeling large amounts of paired data. However, current unsupervised methods using the…

计算机视觉与模式识别 · 计算机科学 2022-03-30 Pan Zhang , Jianmin Bao , Ting Zhang , Dong Chen , Fang Wen