1) noise ratio
噪声比<声>
2) specific noise
比噪声
3) field-to-noise ratio,field to noise ration
场-噪声比
4) CNR
对比噪声比
1.
Objective: Study on the relationship of Propeller technology and image quality such as signal -to - noise ratio (SNR), contrast - to - noise ratio (CNR) and artifact .
结论:Propeller FSE和常规FSE相比,具有更高的信噪比和对比噪声比,图像质量明显提高,并能有效地克服运动伪影。
2.
Part one:the feature of signal intensity and apparent diffusion coefficient of different b value in normal uterus and the choice of the best b valueObjective To observe the feature of signal intensity and apparent diffusion coefficient of different b value in normal uterus,To investigate the imaging quality、SNR and CNR,then choose the best b value suitting the DWI of normal uterus.
一、正常子宫不同b值组合下DWI信号强度和ADC值特点及最佳b值的选择目的:观察不同b值组合下正常子宫DWI信号强度及ADC值变化特点;通过对图像质量、信噪比、对比噪声比的分析,以期找到适合子宫扩散加权成像的适宜b值。
5) signal-to-mask ratio; signal-to-noise ratio
信号噪声比<声>
6) signal-to-noise ratio
信号噪声比
1.
To increase signal-to-noise ratio(SNR) of medical ultrasound image,a frequency-modulated(FM) ultrasound transmitted imaging method is developed,where a weighted linear FM ultrasound is transmitted to enhance the emission energy without increasing the emission ultrasound pressure,and the image signal is formed by the demodulated ultrasound.
为了提高医学超声图像的信号噪声比,研究了调频超声发射的成像方法。
补充资料：噪声等效声级（简称LEQ）
噪声等效声级（简称LEQ）：是指在规定的时间内，某一连续稳态声的A\[计权\]声压，具有与时变的噪声相同的均方A\[计权\]声压，则这一连续稳态声的声级，就是此时变噪声的等效声级。噪声等效声级(分贝）数值越小越好。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条