摘要
现有的盆底超声图像细节增强方法在增加过程中对灰度值把握能力较差,容易出现细节丢失的问题,甚至会出现过度增强。为了解决上述问题,基于直方图均衡插值研究了一种新的盆底超声图像细节增强方法。利用频域高斯滤波和傅里叶变换方法将图像分为高频图像和低频图像,通过直方图均衡处理结果分析相邻灰度值幅值,引入新的灰度值,从而得到新的直方图。以从小到大的顺序确定映射关系,融合处理后的低频图像和高频图像,确保细节可以得到很好的加强。实验结果表明,基于直方图均衡插值的盆底超声图像细节增强方法能够有效提高灰度值把握能力,确保细节的优越性,得到的图像视觉效果十分的清晰,从观感上更柔和。
The existing pelvic floor ultrasound image detail enhancement methods have poor ability to grasp the gray value in the process of increasing,and are prone to the problem of detail loss,or even excessive enhancement.In order to solve the above problems,a new detail enhancement method of pelvic floor ultrasound image is studied based on histogram equalization interpolation.The image is divided into high-frequency image and low-frequency image by frequency domain Gaussian filtering and Fourier transform.The amplitude of adjacent gray values is analyzed through the histogram equalization processing results,and a new gray value is introduced to obtain a new histogram.The mapping relationship is determined from small to large,and the processed low-frequency image and high-frequency image are fused to ensure that the details can be well strengthened.The experimental results show that the detail enhancement method of pelvic floor ultrasonic image based on histogram equalization interpolation can effectively improve the ability to grasp the gray value and ensure the superiority of details.The visual effect of the image is very clear and softer.
作者
肖春蕾
XIAO Chunlei(Tangshan Maternal and Child Health Hospital,Tangshan Hebei 063000,China)
出处
《自动化与仪器仪表》
2022年第6期261-264,共4页
Automation & Instrumentation
基金
河北省卫生健康委科研基金项目:四维超声评估高龄顺产及剖宫产女性盆底结构及功能变化的临床研究(20211407)。
关键词
直方图均衡插值
盆底超声图像
图像细节
灰度值
histogram equalization interpolation
ultrasound image of pelvic floor
image details
gray value
