一种基于中性粒细胞相似性评分的超声图像增强方法。

IF 2.5 4区 医学 Q1 ACOUSTICS
Puja Bharti, Deepti Mittal
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引用次数: 7

摘要

超声图像对比度低,噪声大,对异常的检测有不利影响。鉴于此,本文提出了一种增强方法来降低噪声,提高超声图像的对比度。该方法基于中性相似性评分(NSS)的缩放,其中图像通过三个隶属度子集T, I和F分别表示真、不确定和假的程度,在中性域中表示。NSS使用基于强度、局部平均强度和边缘检测的多准则来度量像素对纹理的归属程度。然后利用NSS提取增强系数,利用增强系数对输入图像进行缩放。这种缩放反映了超声图像对比度的提高和去噪效果。采用主观和客观的图像质量指标对临床超声图像的增强效果进行了评价。在主观评价方面,本文提出的方法获得了4.3分的综合最高分,比原始图像的得分提高了44%。这些结果也得到了客观指标的支持。结果表明,该方法在平均亮度保持、边缘保持、结构相似度和基于人类感知的图像质量评估等方面优于其他方法。因此,所提出的方法可用于计算机辅助诊断系统,并在视觉上协助放射科医生进行交互式决策任务。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
An Ultrasound Image Enhancement Method Using Neutrosophic Similarity Score.

Ultrasound images, having low contrast and noise, adversely impact in the detection of abnormalities. In view of this, an enhancement method is proposed in this work to reduce noise and improve contrast of ultrasound images. The proposed method is based on scaling with neutrosophic similarity score (NSS), where an image is represented in the neutrosophic domain through three membership subsets T, I, and F denoting the degree of truth, indeterminacy, and falseness, respectively. The NSS measures the belonging degree of pixel to the texture using multi-criteria that is based on intensity, local mean intensity and edge detection. Then, NSS is utilized to extract the enhanced coefficient and this enhanced coefficient is applied to scale the input image. This scaling reflects contrast improvement and denoising effect on ultrasound images. The performance of proposed enhancement method is evaluated on clinical ultrasound images, using both subjective and objective image quality measures. In subjective evaluation, with proposed method, overall best score of 4.3 was obtained and that was 44% higher than the score of original images. These results were also supported by objective measures. The results demonstrated that the proposed method outperformed the other methods in terms of mean brightness preservation, edge preservation, structural similarity, and human perception-based image quality assessment. Thus, the proposed method can be used in computer-aided diagnosis systems and to visually assist radiologists in their interactive-decision-making task.

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来源期刊
Ultrasonic Imaging
Ultrasonic Imaging 医学-工程:生物医学
CiteScore
5.10
自引率
8.70%
发文量
15
审稿时长
>12 weeks
期刊介绍: Ultrasonic Imaging provides rapid publication for original and exceptional papers concerned with the development and application of ultrasonic-imaging technology. Ultrasonic Imaging publishes articles in the following areas: theoretical and experimental aspects of advanced methods and instrumentation for imaging
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