نتایج جستجو برای: dehazing

تعداد نتایج: 390  

2014
Liang Li Wei Feng Jiawan Zhang

In this paper, we propose a general algorithm to removing haze from single images using total variation minimization. Our approach stems from two simple yet fundamental observations about haze-free images and the haze itself. First, clear-day images usually have stronger contrast than images plagued by bad weather; and second, the variations in natural atmospheric veil, which highly depends on ...

Journal: :CoRR 2017
Hui Yang Jinshan Pan Qiong Yan Wenxiu Sun Jimmy S. J. Ren Yu-Wing Tai

In this paper, we introduce a bilinear composition loss function to address the problem of image dehazing. Previous methods in image dehazing use a two-stage approach which first estimate the transmission map followed by clear image estimation. The drawback of a two-stage method is that it tends to boost local image artifacts such as noise, aliasing and blocking. This is especially the case for...

2017
Chen Qu Du-Yan Bi Ping Sui Ai-Nong Chao Yun-Fei Wang

The CMOS (Complementary Metal-Oxide-Semiconductor) is a new type of solid image sensor device widely used in object tracking, object recognition, intelligent navigation fields, and so on. However, images captured by outdoor CMOS sensor devices are usually affected by suspended atmospheric particles (such as haze), causing a reduction in image contrast, color distortion problems, and so on. In v...

Journal: :CoRR 2016
Chang-Hwan Son Xiao-Ping Zhang

 Abstract—Near-infrared imaging can capture haze-free near-infrared gray images and visible color images, according to physical scattering models, e.g., Rayleigh or Mie models. However, there exist serious discrepancies in brightness and image structures between the near-infrared gray images and the visible color images. The direct use of the near-infrared gray images brings about another colo...

2014
Adrian Galdran Javier Vazquez-Corral David Pardo Marcelo Bertalmío

Images captured under adverse weather conditions, such as haze or fog, typically exhibit low contrast and faded colors, which may severely limit the visibility within the scene. Unveiling the image structure under the haze layer and recovering vivid colors out of a single image remains a challenging task, since the degradation is depth-dependent and conventional methods are unable to handle thi...

2014
Ruchika Sharma Vinay Chopra

This paper presents a review on the different haze removal techniques. Haze brings trouble to many computer vision/graphics applications as it diminishes the visibility of the scene. Haze is formed due to the two fundamental phenomena that are attenuation and the air light. Attenuation reduces the contrast and air light increases the whiteness in the scene. Haze removal techniques recover the c...

2018
Wenqi Ren Lin Ma Jiawei Zhang Jinshan Pan Xiaochun Cao Wei Liu Ming-Hsuan Yang

In this paper, we propose an efficient algorithm to directly restore a clear image from a hazy input. The proposed algorithm hinges on an end-to-end trainable neural network that consists of an encoder and a decoder. The encoder is exploited to capture the context of the derived input images, while the decoder is employed to estimate the contribution of each input to the final dehazed result us...

Journal: :INTERNATIONAL JOURNAL OF RECENT TRENDS IN ENGINEERING & RESEARCH 2019

Journal: :Journal of physics 2023

Abstract In recent years, image defogging has become a research hotspot in the field of digital processing. Through enhancement processing, visual quality foggy images can be significantly improved, and it is also an important part subsequent To overcome limitations traditional dehazing, algorithm for with sky based on segmentation proposed. Firstly, K-means clustering feature analysis, region ...

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