A diverse underwater image formation model for underwater image restoration

IF 2.7 4区 地球科学 Q2 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Earth Science Informatics Pub Date : 2024-08-26 DOI:10.1007/s12145-024-01462-9
Sami Ullah, Najmul Hassan, Naeem Bhatti
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Abstract

The underwater images (UWIs) are one of the most effective sources to collect information about the underwater environment. Due to the irregular optical properties of different water types, the captured UWIs suffer from color cast, low visibility and distortion. Moreover, each water type offers different optical absorption, scattering, and attenuation of red, green and blue bands, which makes restoration of UWIs a challenging task. The revised underwater image formation model (RUIFM) considers only the peak values of the corresponding attenuation coefficient of each water type to restore UWIs. The performance of RUIFM suffers due to the inter-class variations of UWIs in a water type. In this paper, we propose an improved version of RUIFM as the Diverse Underwater Image Formation Model (DUIFM). The DUIFM increases the diversity of RUIFM by deeply encountering the optical properties of each water type. We investigate the inter-class variations of Jerlov-based classes of UWIs in terms of light attenuation and statistical features and further classify each image into low, medium and high bands. Which, in turn, provides the precise inherent optical attenuation coefficient of water and increases the generality of the DUIFM in color restoration and enhancement. The qualitative and quantitative performance evaluation results on publicly available real-world underwater enhancement (RUIE), underwater image enhancement benchmark (UIEB) and enhanced underwater visual perception (EUVP) data sets demonstrate the effectiveness of our proposed DUIFM.

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用于水下图像修复的多样化水下图像形成模型
水下图像(UWIs)是收集水下环境信息的最有效来源之一。由于不同类型水体的光学特性不尽相同,拍摄到的水下图像存在偏色、能见度低和失真等问题。此外,每种水体对红色、绿色和蓝色波段的光学吸收、散射和衰减各不相同,这使得水下成像的还原成为一项具有挑战性的任务。修订后的水下图像形成模型(RUIFM)仅考虑每种水体相应衰减系数的峰值来还原 UWI。由于水域类型中 UWIs 的类间差异,RUIFM 的性能受到影响。在本文中,我们提出了 RUIFM 的改进版本,即多样化水下图像形成模型(DUIFM)。DUIFM 通过深入了解每种水体的光学特性,增加了 RUIFM 的多样性。我们从光衰减和统计特征方面研究了基于杰洛夫分类的水下图像的类间变化,并进一步将每幅图像分为低、中、高三个波段。这反过来又提供了精确的水固有光衰减系数,提高了 DUIFM 在色彩还原和增强方面的通用性。在公开的真实水下增强(RUIE)、水下图像增强基准(UIEB)和增强水下视觉感知(EUVP)数据集上的定性和定量性能评估结果证明了我们提出的 DUIFM 的有效性。
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来源期刊
Earth Science Informatics
Earth Science Informatics COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS-GEOSCIENCES, MULTIDISCIPLINARY
CiteScore
4.60
自引率
3.60%
发文量
157
审稿时长
4.3 months
期刊介绍: The Earth Science Informatics [ESIN] journal aims at rapid publication of high-quality, current, cutting-edge, and provocative scientific work in the area of Earth Science Informatics as it relates to Earth systems science and space science. This includes articles on the application of formal and computational methods, computational Earth science, spatial and temporal analyses, and all aspects of computer applications to the acquisition, storage, processing, interchange, and visualization of data and information about the materials, properties, processes, features, and phenomena that occur at all scales and locations in the Earth system’s five components (atmosphere, hydrosphere, geosphere, biosphere, cryosphere) and in space (see "About this journal" for more detail). The quarterly journal publishes research, methodology, and software articles, as well as editorials, comments, and book and software reviews. Review articles of relevant findings, topics, and methodologies are also considered.
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