基于适应性和非适应性过器的超声波图像光滑
Heba Khudhair Abbas1, Haidar Jawad Mohamad2, Khloud Falih Abbas3
1Department of Physics, University of Baghdad, Baghdad, Iraq.
JPMA. The Journal of the Pakistan Medical Association
|October 22, 2024
概括
具有3x3窗口的维纳波器有效地平滑了超声波图像,在降噪方面超过了其他适应性和非适应性波器. 这项研究确定了医疗成像中的各种噪音类型的最佳光滑波器.
科学领域:
- 医疗成像医学成像
- 数字信号处理 数字信号处理
背景情况:
- 超声波图像通常会受到噪音的影响,这会降低图像质量并阻碍准确的诊断.
- 适应性和非适应性过器用于平滑图像,但它们的有效性取决于噪声特征.
研究的目的:
- 为了比较各种适应性和非适应性过器的性能,以平滑超声波图像.
- 在脏和胎儿超声波图像中确定最佳的过器和窗口大小以减少噪音.
主要方法:
- 一项比较性研究评估了脏和胎儿超声图像上的8个过器 (1个非适应性,7个适应性).
- 使用3x3,5x5和7x7窗口应用过器.
- 使用历史图来确定噪声类型,并使用统计标准来评估性能,例如平均平方误差和信号与噪声比.
主要成果:
- 具有3x3窗口的维纳波器在降噪方面表现最好.
- 研究人员发现,马,增强型和库安过器是最不有效的.
- 该研究确定了噪音比率和过器性能之间的关系.
结论:
- 选择光滑过器和滑动窗口大小对于在超声波图像中有效降低噪声至关重要.
- 特定过器更适合不同类型的噪音,优化用于诊断目的的图像质量.
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