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A novel method of color image enhancement is proposed, in which three or four color channels of the image are transformed to one channel 2-D grayscale image. This paper describes different models of such transformations in the RGB and other…

图像与视频处理 · 电气工程与系统科学 2018-07-24 Artyom M Grigoryan , Aparna John , Sos S Agaian

We address the problem of exposure correction of dark, blurry and noisy images captured in low-light conditions in the wild. Classical image-denoising filters work well in the frequency space but are constrained by several factors such as…

图像与视频处理 · 电气工程与系统科学 2021-05-24 Ojasvi Yadav , Koustav Ghosal , Sebastian Lutz , Aljosa Smolic

Low-light images, i.e. the images captured in low-light conditions, suffer from very poor visibility caused by low contrast, color distortion and significant measurement noise. Low-light image enhancement is about improving the visibility…

图像与视频处理 · 电气工程与系统科学 2020-07-08 Jinxiu Liang , Yong Xu , Yuhui Quan , Jingwen Wang , Haibin Ling , Hui Ji

Object detection in remote sensing, especially in aerial images, remains a challenging problem due to low image resolution, complex backgrounds, and variation of scale and angles of objects in images. In current implementations, multi-scale…

计算机视觉与模式识别 · 计算机科学 2018-10-19 Peng Sun , Guang Chen , Guerdan Luke , Yi Shang

Decreased visibility, intensive noise, and biased color are the common problems existing in low-light images. These visual disturbances further reduce the performance of high-level vision tasks, such as object detection, and tracking. To…

计算机视觉与模式识别 · 计算机科学 2023-06-30 Hao Chen , Zhi Jin

Synthesizing normal-light novel views from low-light multiview images is an important yet challenging task, given the low visibility and high ISO noise present in the input images. Existing low-light enhancement methods often struggle to…

计算机视觉与模式识别 · 计算机科学 2025-07-17 Ze Li , Feng Zhang , Xiatian Zhu , Meng Zhang , Yanghong Zhou , P. Y. Mok

We present an approach to separating reflection from a single image. The approach uses a fully convolutional network trained end-to-end with losses that exploit low-level and high-level image information. Our loss function includes two…

计算机视觉与模式识别 · 计算机科学 2018-06-15 Xuaner Zhang , Ren Ng , Qifeng Chen

Low-light image enhancement (LLIE) is a crucial task in computer vision aimed at enhancing the visual fidelity of images captured under low-illumination conditions. Conventional methods frequently struggle with noise, overexposure, and…

图像与视频处理 · 电气工程与系统科学 2025-07-17 Namrah Siddiqua , Kim Suneung , Seong-Whan Lee

Low-light image enhancement (LLIE) aims to improve the visual quality of images captured under poor lighting conditions. In supervised LLIE research, there exists a significant yet often overlooked inconsistency between the overall…

计算机视觉与模式识别 · 计算机科学 2025-07-29 Jingxi Liao , Shijie Hao , Richang Hong , Meng Wang

Automatic building extraction from aerial imagery has several applications in urban planning, disaster management, and change detection. In recent years, several works have adopted deep convolutional neural networks (CNNs) for building…

图像与视频处理 · 电气工程与系统科学 2020-01-22 Clint Sebastian , Raffaele Imbriaco , Egor Bondarev , Peter H. N. de With

Many existing methods for low-light image enhancement (LLIE) based on Retinex theory ignore important factors that affect the validity of this theory in digital imaging, such as noise, quantization error, non-linearity, and dynamic range…

计算机视觉与模式识别 · 计算机科学 2024-04-05 Shangquan Sun , Wenqi Ren , Jingyang Peng , Fenglong Song , Xiaochun Cao

Degradation of image quality due to the presence of haze is a very common phenomenon. Existing DehazeNet [3], MSCNN [11] tackled the drawbacks of hand crafted haze relevant features. However, these methods have the problem of color…

计算机视觉与模式识别 · 计算机科学 2018-01-26 Akshay Dudhane , Subrahmanyam Murala

Images captured in low-light environment often suffer from complex degradation. Simply adjusting light would inevitably result in burst of hidden noise and color distortion. To seek results with satisfied lighting, cleanliness, and realism…

计算机视觉与模式识别 · 计算机科学 2021-12-01 Qiming Hu , Xiaojie Guo

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…

计算机视觉与模式识别 · 计算机科学 2017-12-11 Hossein Talebi , Peyman Milanfar

Image and video restoration has achieved a remarkable leap with the advent of deep learning. The success of deep learning paradigm lies in three key components: data, model, and loss. Currently, many efforts have been devoted to the first…

计算机视觉与模式识别 · 计算机科学 2023-03-30 Man Zhou , Naishan Zheng , Jie Huang , Chunle Guo , Chongyi Li

A novel color image enhancement method is proposed based on Retinex to enhance color images under non-uniform illumination or poor visibility conditions. Different from the conventional Retinex algorithms, the Weighted Guided Image Filter…

计算机视觉与模式识别 · 计算机科学 2018-12-27 Qi Mu , Yanyan Wei , Zhanli Li

Low-light image enhancement aims to improve the perception of images collected in dim environments and provide high-quality data support for image recognition tasks. When dealing with photos captured under non-uniform illumination, existing…

计算机视觉与模式识别 · 计算机科学 2023-12-29 Xiao Fang , Xin Gao , Baofeng Li , Feng Zhai , Yu Qin , Zhihang Meng , Jiansheng Lu , Chun Xiao

Previous work in Neural Loss Function Search (NLFS) has shown a lack of correlation between smaller surrogate functions and large convolutional neural networks with massive regularization. We expand upon this research by revealing another…

神经与进化计算 · 计算机科学 2024-04-11 Brandon Morgan , Dean Hougen

Event cameras are novel vision sensors that output pixel-level brightness changes ("events") instead of traditional video frames. These asynchronous sensors offer several advantages over traditional cameras, such as, high temporal…

计算机视觉与模式识别 · 计算机科学 2022-07-08 Guillermo Gallego , Mathias Gehrig , Davide Scaramuzza

This paper tackles high-dynamic-range (HDR) image reconstruction given only a single low-dynamic-range (LDR) image as input. While the existing methods focus on minimizing the mean-squared-error (MSE) between the target and reconstructed…

计算机视觉与模式识别 · 计算机科学 2018-12-19 Kenta Moriwaki , Ryota Yoshihashi , Rei Kawakami , Shaodi You , Takeshi Naemura