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Maritime images captured under low-light imaging condition easily suffer from low visibility and unexpected noise, leading to negative effects on maritime traffic supervision and management. To promote imaging performance, it is necessary…

图像与视频处理 · 电气工程与系统科学 2020-08-11 Yu Guo , Yuxu Lu , Ryan Wen Liu , Meifang Yang , Kwok Tai Chui

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…

计算机视觉与模式识别 · 计算机科学 2022-09-15 Xiaomeng Wu , Takahito Kawanishi , Kunio Kashino

This paper introduces Hazedefy, a lightweight and application-focused dehazing pipeline intended for real-time video and live camera feed enhancement. Hazedefy prioritizes computational simplicity and practical deployability on…

计算机视觉与模式识别 · 计算机科学 2025-12-19 Ayush Bhavsar

Underwater images captured by Autonomous Underwater Vehicles (AUVs) are inevitably affected by artificial light sources, which often produce halos in the foreground of the camera and seriously interfere with the quality of the image. The…

计算机视觉与模式识别 · 计算机科学 2026-05-12 Jiaxin Yang , Honglin Liu , Yongli Wang , Shuyi Cao , Chengcheng Jiang , Jiale Wang

Underwater images suffer from color distortion and low contrast, because light is attenuated while it propagates through water. Attenuation under water varies with wavelength, unlike terrestrial images where attenuation is assumed to be…

计算机视觉与模式识别 · 计算机科学 2019-03-26 Dana Berman , Deborah Levy , Shai Avidan , Tali Treibitz

In nighttime circumstances, it is challenging for individuals and machines to perceive their surroundings. While prevailing image restoration methods adeptly handle singular forms of degradation, they falter when confronted with intricate…

计算机视觉与模式识别 · 计算机科学 2026-05-15 Yifan Chen , Fei Yin , Chunle Guo , Chongyi Li , Yujiu Yang

Object recognition is a critical part of any surveillance system. It is the matter of utmost concern to identify intruders and foreign objects in the area where surveillance is done. The performance of surveillance system using the…

计算机视觉与模式识别 · 计算机科学 2020-06-11 Aashish Bhandari , Aayush Kafle , Pranjal Dhakal , Prateek Raj Joshi , Dinesh Baniya Kshatri

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…

计算机视觉与模式识别 · 计算机科学 2024-04-09 Mengwei Ren , Wei Xiong , Jae Shin Yoon , Zhixin Shu , Jianming Zhang , HyunJoon Jung , Guido Gerig , He Zhang

Current deep dehazing methods only focus on removing haze from hazy images, lacking the capability to translate between hazy and haze-free images. To address this issue, we propose a residual-based efficient bidirectional diffusion model…

计算机视觉与模式识别 · 计算机科学 2025-08-18 Bing Liu , Le Wang , Hao Liu , Mingming Liu

Single-image haze removal is a long-standing hurdle for computer vision applications. Several works have been focused on transferring advances from image classification, detection, and segmentation to the niche of image dehazing, primarily…

计算机视觉与模式识别 · 计算机科学 2022-07-26 Sai Mitheran , Anushri Suresh , Nisha J. S. , Varun P. Gopi

Night imaging with modern smartphone cameras is troublesome due to low photon count and unavoidable noise in the imaging system. Directly adjusting exposure time and ISO ratings cannot obtain sharp and noise-free images at the same time in…

计算机视觉与模式识别 · 计算机科学 2022-07-15 Yuzhi Zhao , Yongzhe Xu , Qiong Yan , Dingdong Yang , Xuehui Wang , Lai-Man Po

Image dehazing is a crucial task that involves the enhancement of degraded images to recover their sharpness and textures. While vision Transformers have exhibited impressive results in diverse dehazing tasks, their quadratic complexity and…

计算机视觉与模式识别 · 计算机科学 2025-03-04 Xiongfei Su , Siyuan Li , Yuning Cui , Miao Cao , Yulun Zhang , Zheng Chen , Zongliang Wu , Zedong Wang , Yuanlong Zhang , Xin Yuan

Haze severely degrades the visual quality of remote sensing images and hampers the performance of road extraction, vehicle detection, and traffic flow monitoring. The emerging denoising diffusion probabilistic model (DDPM) exhibits the…

计算机视觉与模式识别 · 计算机科学 2024-11-18 Jiamei Xiong , Xuefeng Yan , Yongzhen Wang , Wei Zhao , Xiao-Ping Zhang , Mingqiang Wei

Auto white balance (AWB) is applied by camera hardware at capture time to remove the color cast caused by the scene illumination. The vast majority of white-balance algorithms assume a single light source illuminates the scene; however,…

计算机视觉与模式识别 · 计算机科学 2021-10-11 Mahmoud Afifi , Marcus A. Brubaker , Michael S. Brown

Video dehazing aims to recover haze-free frames with high visibility and contrast. This paper presents a novel framework to effectively explore the physical haze priors and aggregate temporal information. Specifically, we design a…

计算机视觉与模式识别 · 计算机科学 2023-03-20 Jiaqi Xu , Xiaowei Hu , Lei Zhu , Qi Dou , Jifeng Dai , Yu Qiao , Pheng-Ann Heng

The visual quality of photographs taken under imperfect lightness conditions can be degenerated by multiple factors, e.g., low lightness, imaging noise, color distortion and so on. Current low-light image enhancement models focus on the…

计算机视觉与模式识别 · 计算机科学 2021-11-30 Shijie Hao , Xu Han , Yanrong Guo , Meng Wang

Here we explore two related but important tasks based on the recently released REalistic Single Image DEhazing (RESIDE) benchmark dataset: (i) single image dehazing as a low-level image restoration problem; and (ii) high-level visual…

计算机视觉与模式识别 · 计算机科学 2018-07-31 Yu Liu , Guanlong Zhao , Boyuan Gong , Yang Li , Ritu Raj , Niraj Goel , Satya Kesav , Sandeep Gottimukkala , Zhangyang Wang , Wenqi Ren , Dacheng Tao

Just like many other topics in computer vision, image classification has achieved significant progress recently by using deep-learning neural networks, especially the Convolutional Neural Networks (CNN). Most of the existing works are…

计算机视觉与模式识别 · 计算机科学 2018-10-15 Yanting Pei , Yaping Huang , Qi Zou , Hao Zang , Xingyuan Zhang , Song Wang

In this paper, we present an end-to-end network, called Cycle-Dehaze, for single image dehazing problem, which does not require pairs of hazy and corresponding ground truth images for training. That is, we train the network by feeding clean…

计算机视觉与模式识别 · 计算机科学 2018-05-15 Deniz Engin , Anıl Genç , Hazım Kemal Ekenel

A small ISO and a small exposure time are usually used to capture an image in the back or low light conditions which results in an image with negligible motion blur and small noise but look dark. In this paper, a single image brightening…

计算机视觉与模式识别 · 计算机科学 2020-07-27 Chaobing Zheng , Zhengguo Li , Yi Yang , Shiqian Wu