相关实验视频
Updated: Feb 14, 2026
10:53
A Novel Application of Musculoskeletal Ultrasound Imaging
Published on: September 17, 2013
24.7K
李波器在乳腺超声图像中的良性瘤细分的应用和优化
1Department of Health Science, General Graduate School of Gachon University, Incheon, Korea.
Journal of medical physics
|February 13, 2026
概括
将Lee波器窗口大小优化为7x7,显著改善了乳房超声波图像 (BUSI) 中的斑点噪声降低和瘤细分精度. 这增强了临床诊断的深度学习应用.
科学领域:
- 医疗成像医学成像
- 人工智能的人工智能
- 图像处理 图像处理
背景情况:
- 乳房超声波图像 (BUSI) 中的斑点噪声降低了图像质量,并阻碍了精确的瘤细分.
- 李波器是一种常见的降噪技术,但它对BUSI的最佳参数需要研究.
- 准确细分良性瘤对于诊断和治疗计划至关重要.
研究的目的:
- 为了优化Lee过器的窗口大小,以有效地减少公共汽车中的斑点噪声.
- 用U-Net模型评估不同Lee波器窗口大小对良性瘤细分性能的影响.
主要方法:
- 良性瘤图像被人工破坏了斑点噪声.
- 使用3x3,5x5,7x7和9x9.9的窗口大小应用了李波器.
- 使用U-Net模型对噪音和过图像中的瘤进行细分.
- 分段性能的量化评估是使用交叉与联盟 (IoU),峰值信号与噪声比率 (PSNR) 和通用图像质量指数 (UQI) 的交叉.
主要成果:
- 李波器的7x7窗口大小在所有评估指标 (IoU,PSNR,UQI) 中产生了最高的性能.
- 与噪音图像相比,7x7李波器的平均性能改善约为19% (IoU),5% (PSNR) 和19% (UQI).
- 在7x7窗口尺寸下,最大的性能改进达到了27% (IoU),7% (PSNR) 和23% (UQI).
结论:
- 优化了7x7窗口大小的李波器有效地减少了BUS.I中的斑点噪声.
- 这种优化过提高了基于深度学习的瘤细分的准确性.
- 这些发现支持深度学习模型在超声波成像中用于瘤细分的临床适用性.
更多相关视频
08:21Wideband Optical Detector of Ultrasound for Medical Imaging Applications
Published on: May 11, 2014
11.8K
12:23Multi-modal Imaging of Angiogenesis in a Nude Rat Model of Breast Cancer Bone Metastasis Using Magnetic Resonance Imaging, Volumetric Computed Tomography and Ultrasound
Published on: August 14, 2012
14.9K
相关概念视频
01:27Passive Filters
1.0K
Passive filters are utilized to shape the frequency spectrum of signals across a diverse array of applications. These filters, using only passive elements like resistors (R), inductors (L), and capacitors (C), are capable of selectively allowing or blocking certain frequency ranges without the need for external power sources.
Low-Pass Filters
Low-pass filters are designed to transmit signals with frequencies lower than the cutoff frequency, ωc, and attenuate those above it. The cutoff...
Low-Pass Filters
Low-pass filters are designed to transmit signals with frequencies lower than the cutoff frequency, ωc, and attenuate those above it. The cutoff...
1.0K
01:25Active Filters
1.4K
Active filters are electronic circuits that use operational amplifiers (op-amps), resistors, and capacitors to filter out unwanted frequency components from a signal. A first-order low-pass active filter is designed to pass signals with a frequency lower than a certain cutoff frequency and attenuate frequencies higher than that cutoff frequency. The transfer function for a first-order low-pass active filter is:
1.4K
01:25Ultrasound II: Endoscopic Ultrasound and FibroScan
742
Endoscopic Ultrasound (EUS) and FibroScan are valuable diagnostic tools in gastroenterology and hepatology, each with specific applications and techniques.
Endoscopic Ultrasound (EUS):
Endoscopic Ultrasound (EUS):
742
00:48Optimal Foraging
14.0K
How animals obtain and eat their food is called foraging behavior. Foraging can include searching for plants and hunting for prey and depends on the species and environment.
14.0K
01:26Optimization Problems
82
Optimization problems often involve identifying maximum or minimum values under specific constraints. A well-known example is determining the longest horizontal pipe that can be moved around a right-angled corner, where a 3-meter-wide hallway meets a 2-meter-wide hallway. This scenario, common in architectural design and industrial transport, can be understood conceptually through geometric and trigonometric reasoning.To visualize the problem, consider the pipe as a straight line that touches...
82
01:23Optimal Arousal Theory
893
The optimal arousal theory suggests that performance is maximized when an individual experiences a moderate level of arousal. This theory is closely tied to the Yerkes-Dodson law, which illustrates an inverted U-shaped relationship between arousal and performance. The law, formulated by psychologists Robert Yerkes and John Dodson, implies an ideal arousal level for optimal performance, and deviations from this level can lead to declines in effectiveness.
Inverted U-Shaped Performance Curve
The...
Inverted U-Shaped Performance Curve
The...
893