一种用于断层扫描实验的一般图像错位校正方法
Zhen Zhang1, Zheng Dong2, Hanfei Yan3
1National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, People's Republic of China.
iScience
|October 4, 2023
概括
这项研究引入了基于外形轮的错位校正 (OCMC) 来修复断层扫描中的未对齐图像. OCMC提高了3D重建的准确性和效率,以获得更好的空间分辨率.
科学领域:
- 影像科学 影像科学
- 材料科学 材料科学 材料科学
- 物理 物理学 物理
背景情况:
- 断层扫描从二维投影中重建3D切片.
- 机械系统的偏移会导致投射失调,从而降低空间分辨率.
- 现有的方法在纠正这些错位时缺乏效率和准确性.
研究的目的:
- 提出一种新且有效的方法来纠正断层扫描中的图像错位.
- 为了提高3D重建图像的空间分辨率和准确性.
- 开发一种适用于各种断层扫描技术的通用方法.
主要方法:
- 引入了基于外围轮的错位校正 (OCMC).
- 利用样本的外围轮作为错位估计的辅助信息.
- 开发了一种端到端的校正方法,以实现无集成.
主要成果:
- OCMC在对齐准确度方面取得了显著的改进.
- 与现有技术相比,该方法显示出高时间效率.
- 在五个不同的数据集和多种断层扫描技术中得到验证.
结论:
- OCMC有效地纠正断层扫描中的图像错位.
- 该方法提高了3D重建质量和空间分辨率.
- OCMC适用于在线处理和实验中的未来反控制.
相关概念视频
Computed Tomography
4.6K
Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
4.6K
Imaging Studies III: Computed Tomography
13
DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
13
Electron Microscope Tomography and Single-particle Reconstruction
2.4K
Transmission electron microscopy (TEM) can be used to determine the 3D structure of biological samples with the help of techniques such as electron microscope tomography and single-particle reconstruction. While single-particle reconstruction can examine macromolecules and macromolecular complexes in vitro conditions only, tomography permits the study of cell components or small cells in vivo.
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
2.4K


