通过马赛克和PAN图像融合等效高分辨率高光谱成像
概括
这项研究引入了一种新的双传感器超光谱成像系统和一个无监督的培训框架,用于从低分辨率的马赛克和泛色图像中重建高分辨率超光谱图像 (HSI).
科学领域:
- 遥感 遥感 遥感 遥感
- 图像处理 图像处理
- 光学工程是指光学工程.
背景情况:
- 现有的基于马赛克的超光谱成像系统缺乏高分辨率的能力.
- 将低分辨率的马赛克图像与高分辨率的泛色图像融合在一起,是HR HSI重建的可行解决方案.
研究的目的:
- 提出一个双传感器高光谱成像系统,将马赛克和泛色传感器结合起来.
- 为HR HSI重建开发基于无监督等价成像 (EI) 的培训框架.
主要方法:
- 一个双传感器系统,有一个4x4光谱波器阵列 (SFA) 马赛克传感器和一个协同对齐的PAN传感器.
- 一个无监督的EI培训框架,具有可学习的降解功能,包括马赛克和降低样本.
- 建模PAN图像作为HR HSI的线性投影,具有可学习的光谱响应函数 (SRF) 参数.
主要成果:
- 成功重建HR HSI,具有高空间一致性和光谱保真性.
- 在60个配对的马赛克/PAN图像的现实世界数据集上证明了有效性.
- 该方法保持了计算效率.
结论:
- 拟议的双传感器系统和EI框架有效地克服了现有HSI系统的局限性.
- 具有可学习的降解函数的无监督学习使得HR HSI在没有基本真相的情况下能够准确地重建HR HSI.
- 该系统为需要高分辨率超光谱数据的应用提供了实用解决方案.
更多相关视频
07:05Applying Hyperspectral Reflectance Imaging to Investigate the Palettes and the Techniques of Painters
Published on: June 18, 2021
2.8K
08:49Author Spotlight: Unveiling the Potential of VSFG Microscopy in Studying Mesoscopically Heterogeneous Self-Assembled Structures
Published on: December 1, 2023
2.0K
相关概念视频
The Fluid Mosaic Model
177.8K
The fluid mosaic model was first proposed as a visual representation of research observations. The model comprises the composition and dynamics of membranes and serves as a foundation for future membrane-related studies. The model depicts the structure of the plasma membrane with a variety of components, which include phospholipids, proteins, and carbohydrates. These integral molecules are loosely bound, defining the cell’s border and providing fluidity for optimal function.
177.8K
Nuclear Fusion
33.8K
The process of converting very light nuclei into heavier nuclei is also accompanied by the conversion of mass into large amounts of energy, a process called fusion. The principal source of energy in the sun is a net fusion reaction in which four hydrogen nuclei fuse and ultimately produce one helium nucleus and two positrons.
A helium nucleus has a mass that is 0.7% less than that of four hydrogen nuclei; this lost mass is converted into energy during the fusion. This reaction produces about...
A helium nucleus has a mass that is 0.7% less than that of four hydrogen nuclei; this lost mass is converted into energy during the fusion. This reaction produces about...
33.8K
Fluid Mosaic Model
16.0K
Scientists identified the plasma membrane in the 1890s and its principal chemical components (lipids and proteins) by 1915. The model for plasma membrane structure, proposed in 1935 by Hugh Davson and James Danielli, was the first model to be widely accepted in the scientific community. The model was based on the plasma membrane's "railroad track" appearance in early electron micrographs. Davson and Danielli theorized that the plasma membrane's structure resembled a sandwich...
16.0K
Imaging Studies VII: Vascular Imaging
367
DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...
367
X-ray Imaging
10.2K
German physicist Wilhelm Röntgen (1845–1923) was experimenting with electrical current when he discovered that a mysterious and invisible "ray" would pass through his flesh but leave an outline of his bones on a screen coated with a metal compound. In 1895, Röntgen made the first durable record of the internal parts of a living human: an "X-ray" image (as it came to be called) of his wife’s hand. Scientists worldwide quickly began their own experiments with...
10.2K
Brain Imaging
732
Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...
732
