通过红色通道最大衰减进行水下图像增强,然后进行多尺度细节融合和多尺度细节融合
Optics express
|September 15, 2023
概括
本研究介绍了一种高效的水下图像增强方法,以改善具有挑战性的水生环境中的颜色,对比度和细节. 这种方法确保了高质量的水下图像,可以适应各种条件.
科学领域:
- 计算机视觉 计算机视觉
- 图像处理 图像处理
- 海洋技术 海洋技术
背景情况:
- 水下环境对图像捕获和处理提出了重大挑战.
- 现有的水下成像系统缺乏适应各种水域条件的适应性,影响图像质量.
研究的目的:
- 设计一种高效的水下图像增强方法.
- 提高水下图像的颜色,对比度和细节.
主要方法:
- 在进行颜色校正之前使用红色通道最大衰减.
- 采用多通道亮度块估计用于全球图像拉伸.
- 包含了改进的引导降噪过器.
- 应用了金字塔融合模型来实现细节放大和自然性.
主要成果:
- 增强的图像显示了丰富的,未扭曲的颜色,显著改善了对比度和细节.
- 与最先进的方法相比,客观和主观评估显示出更高的性能.
- 这种方法在各种水下场景中非常通用.
结论:
- 拟议的方法有效地增强了水下图像.
- 它为改善各种水下应用中的图像质量提供了多功能解决方案.
更多相关视频
相关概念视频
Super-resolution Fluorescence Microscopy
7.0K
Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...
7.0K
Uniform Depth Channel Flow
95
Uniform depth channel flow keeps fluid depth consistent along channels such as irrigation canals. In natural channels, such as rivers, approximate uniform flow is often assumed. This condition occurs when the channel’s bottom slope matches the energy slope, balancing potential energy lost from gravity with head loss due to shear stress. This balance prevents depth changes along the channel length, resulting in a steady, uniform flow.Uniform flow in open channels with a constant cross-section...
95
Uniform Depth Channel Flow: Problem Solving
85
To calculate the flow rate for a trapezoidal channel, first, identify the bottom width, side slope, and flow depth of the channel. The cross-sectional area (A) corresponding to the depth of flow (y), channel bottom width (B), and side slope (θ) is determined by:Next, calculate the wetted perimeter, which includes the bottom width and the sloped side lengths in contact with the water. Using the values of the cross-sectional area and the wetted perimeter, determine the hydraulic radius by...
85


