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Existing image enhancement methods fall short of expectations because with them it is difficult to improve global and local image contrast simultaneously. To address this problem, we propose a histogram equalization-based method that adapts…

Computer Vision and Pattern Recognition · Computer Science 2022-09-15 Xiaomeng Wu , Takahito Kawanishi , Kunio Kashino

We introduce a comprehensive benchmark for local features and robust estimation algorithms, focusing on the downstream task -- the accuracy of the reconstructed camera pose -- as our primary metric. Our pipeline's modular structure allows…

Computer Vision and Pattern Recognition · Computer Science 2021-02-12 Yuhe Jin , Dmytro Mishkin , Anastasiia Mishchuk , Jiri Matas , Pascal Fua , Kwang Moo Yi , Eduard Trulls

Images can vary according to changes in viewpoint, resolution, noise, and illumination. In this paper, we aim to learn representations for an image, which are robust to wide changes in such environmental conditions, using training pairs of…

Computer Vision and Pattern Recognition · Computer Science 2013-01-17 Kye-Hyeon Kim , Rui Cai , Lei Zhang , Seungjin Choi

Recent deep learning-based methods have shown promising results and runtime advantages in deformable image registration. However, analyzing the effects of hyperparameters and searching for optimal regularization parameters prove to be too…

Computer Vision and Pattern Recognition · Computer Science 2021-07-06 Tony C. W. Mok , Albert C. S. Chung

Low light images captured in a non-uniform illumination environment usually are degraded with the scene depth and the corresponding environment lights. This degradation results in severe object information loss in the degraded image…

Computer Vision and Pattern Recognition · Computer Science 2020-08-03 Xin Xu , Shiqin Wang , Zheng Wang , Xiaolong Zhang , Ruimin Hu

Deep learning models have demonstrated remarkable capabilities in learning complex patterns and concepts from training data. However, recent findings indicate that these models tend to rely heavily on simple and easily discernible features…

Computer Vision and Pattern Recognition · Computer Science 2023-09-25 Raha Ahmadi , Mohammad Javad Rajabi , Mohammad Khalooie , Mohammad Sabokrou

With recent generative models facilitating photo-realistic image synthesis, the proliferation of synthetic images has also engendered certain negative impacts on social platforms, thereby raising an urgent imperative to develop effective…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Ouxiang Li , Jiayin Cai , Yanbin Hao , Xiaolong Jiang , Yao Hu , Fuli Feng

Given a composite image, image harmonization aims to adjust the foreground illumination to be consistent with background. Previous methods have explored transforming foreground features to achieve competitive performance. In this work, we…

Computer Vision and Pattern Recognition · Computer Science 2023-08-02 Li Niu , Linfeng Tan , Xinhao Tao , Junyan Cao , Fengjun Guo , Teng Long , Liqing Zhang

Image reconstruction based on an edge-sparsity assumption has become popular in recent years. Many methods of this type are capable of reconstructing nearly perfect edge-sparse images using limited data. In this paper, we present a method…

Image and Video Processing · Electrical Eng. & Systems 2019-02-04 Victor Churchill , Anne Gelb

We present a comprehensive overview of the Deep Image Prior (DIP) framework and its applications to image reconstruction in computed tomography. Unlike conventional deep learning methods that rely on large, supervised datasets, the DIP…

Image and Video Processing · Electrical Eng. & Systems 2026-02-24 Simon Arridge , Riccardo Barbano , Alexander Denker , Zeljko Kereta

In this paper we propose a method for estimating depth from a single image using a coarse to fine approach. We argue that modeling the fine depth details is easier after a coarse depth map has been computed. We express a global (coarse)…

Computer Vision and Pattern Recognition · Computer Science 2016-02-10 Mohammad Haris Baig , Lorenzo Torresani

With technological advances leading to an increase in mechanisms for image tampering, fraud detection methods must continue to be upgraded to match their sophistication. One problem with current methods is that they require prior knowledge…

Computer Vision and Pattern Recognition · Computer Science 2022-01-25 Robin Elizabeth Yancey

Recently, image forensics community has paied attention to the research on the design of effective algorithms based on deep learning technology and facts proved that combining the domain knowledge of image forensics and deep learning would…

Computer Vision and Pattern Recognition · Computer Science 2018-12-26 Wei Zhao , Pengpeng Yang , Rongrong Ni , Yao Zhao , Haorui Wu

In recent years, learning-based color and tone enhancement methods for photos have become increasingly popular. However, most learning-based image enhancement methods just learn a mapping from one distribution to another based on one…

Computer Vision and Pattern Recognition · Computer Science 2024-06-25 Shiqi Gao , Huiyu Duan , Xinyue Li , Kang Fu , Yicong Peng , Qihang Xu , Yuanyuan Chang , Jia Wang , Xiongkuo Min , Guangtao Zhai

Image registration has traditionally been done using two distinct approaches: learning based methods, relying on robust deep neural networks, and optimization-based methods, applying complex mathematical transformations to warp images…

Computer Vision and Pattern Recognition · Computer Science 2024-01-22 Gabriel De Araujo , Shanlin Sun , Xiaohui Xie

It is challenging to align multi-exposed images due to large illumination variations, especially in presence of saturated regions. In this paper, a novel image alignment algorithm is proposed to cope with the multi-exposed images with…

Image and Video Processing · Electrical Eng. & Systems 2020-12-22 Jun Jiang , Zhengguo Li , Shoulie Xie , Shiqian Wu , Liangcai Zeng

Estimating depth from RGB images is a long-standing ill-posed problem, which has been explored for decades by the computer vision, graphics, and machine learning communities. Among the existing techniques, stereo matching remains one of the…

Computer Vision and Pattern Recognition · Computer Science 2021-01-26 Hamid Laga , Laurent Valentin Jospin , Farid Boussaid , Mohammed Bennamoun

Natural image matting is a fundamental problem in computational photography and computer vision. Deep neural networks have seen the surge of successful methods in natural image matting in recent years. In contrast to traditional…

Computer Vision and Pattern Recognition · Computer Science 2020-04-08 Yaoyi Li , Qingyao Xu , Hongtao Lu

Synthetic aperture sonar (SAS) requires precise positional and environmental information to produce well-focused output during the image reconstruction step. However, errors in these measurements are commonly present resulting in defocused…

Image and Video Processing · Electrical Eng. & Systems 2021-08-02 Isaac Gerg , Vishal Monga

When imaging through a semi-reflective medium such as glass, the reflection of another scene can often be found in the captured images. It degrades the quality of the images and affects their subsequent analyses. In this paper, a novel deep…

Image and Video Processing · Electrical Eng. & Systems 2022-08-11 Tingtian Li , Yuk-Hee Chan , Daniel P. K. Lun