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在声学显微镜中使用块匹配和4D波器进行图像消极化
Shubham Kumar Gupta1, Rishant Pal2, Azeem Ahmad3
1Department of Chemical Engineering, Indian Institute of Technology, Guwahati, India.
Scientific reports
|August 14, 2023
概括
4D区块匹配 (BM4D) 过器有效地消除扫描声学显微镜 (SAM) 图像,优于传统方法. 这种技术提高了生物医学成像和材料研究中的关键应用的图像质量.
科学领域:
- 生物医学成像技术 生物医学成像技术
- 非破坏性测试 不破坏性测试
- 材料研究 材料研究
背景情况:
- 扫描声学显微镜 (SAM) 使用无标签的超声波成像可视化结构.
- 在SAM中的图像噪声降低了对比度,分辨率,并影响后处理.
- 有效的降噪对于SAM的准确分析至关重要.
研究的目的:
- 为了评估4D块匹配 (BM4D) 过器在消除SAM声学体积信号的有效性.
- 为了比较BM4D性能与传统的过方法.
主要方法:
- 应用4D区块匹配 (BM4D) 过器,使用转换域过,硬值和维纳过.
- 使用高斯,中位数和维纳波器进行比较分析.
- 使用结构相似度指数矩阵 (SSIM) 和峰值信号对噪声比 (PSNR) 进行定量和定性评估.
主要成果:
- 与传统过器相比,BM4D显示出更高的脱光性能.
- 在杂的SAM图像中,BM4D显著改善了图像质量指标 (SSIM,PSNR).
- 过器有效地保留了图像细节和对比度.
结论:
- BM4D波器是最合适的方法来消除来自SAM的声学图像.
- 这种方法为声学和光声学图像消噪提供了显著的进步,特别是在信号噪声比较低的条件下.
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