Experimental Investigation on Minimum Frame Rate Requirements of High-Speed Videoendoscopy for Clinical Voice Assessment.
Experimental Investigation on Minimum Frame Rate Requirements of High-Speed Videoendoscopy for Clinical Voice Assessment.
复制标题
DOI：
10.1016/j.bspc.2014.11.007
复制
发表时间：
2015-03
影响因子：
5.1
通讯作者：
de Alarcon A
中科院分区：
文献类型：
--
作者：
Deliyski DD;Powell ME;Zacharias SR;Gerlach TT;de Alarcon A
这项研究调查了高速视频内窥镜(HSV)帧速率对评估9种临床相关声带振动特征的影响。14例成人发声障碍患者和14例正常成人分别以16000帧/秒(Fps)和639×639像素的空间分辨率进行单色刚性单纯疱疹病毒检查。16000-fps的数据被下采样到16个其他速率面值。采用配对比较设计，在下采样图像和原始图像之间进行9种常见的临床振动特征的视觉比较。三名评分员报告了阈值，在该阈值上：(1)首次注意到两个视频之间的可检测到的差异，以及(2)两个视频之间的差异将导致临床评分的变化。结果表明，声门边缘、粘膜波幅和范围、声带的非周期性、接触和失去接触是对帧速率最敏感的振动特征。在这些振动特征中，声门边缘被选作进一步分析，因为它具有较高的评级可靠性、普遍性和一致的定义。8000fps的速率被发现没有视觉可感知的特征退化，而对于5333fps的速率，退化是最小的。对于4000fps及更高的速率，声门边缘的临床评估不受影响。2000fps的频率改变了超过16%的样本的临床分级，这可能导致不准确的功能评估。
This study investigated the impact of high-speed videoendoscopy (HSV) frame rates on the assessment of nine clinically-relevant vocal-fold vibratory features. Fourteen adult patients with voice disorder and 14 adult normal controls were recorded using monochromatic rigid HSV at a rate of 16000 frames per second (fps) and spatial resolution of 639×639 pixels. The 16000-fps data were downsampled to 16 other rate denominations. Using paired comparisons design, nine common clinical vibratory features were visually compared between the downsampled and the original images. Three raters reported the thresholds at which: (1) a detectable difference between the two videos was first noticed, and (2) differences between the two videos would result in a change of clinical rating. Results indicated that glottal edge, mucosal wave magnitude and extent, aperiodicity, contact and loss of contact of the vocal folds were the vibratory features most sensitive to frame rate. Of these vibratory features, the glottal edge was selected for further analysis, due to its higher rating reliability, universal prevalence and consistent definition. Rates of 8000 fps were found to be free from visually-perceivable feature degradation, and for rates of 5333 fps, degradation was minimal. For rates of 4000 fps and higher, clinical assessments of glottal edge were not affected. Rates of 2000 fps changed the clinical ratings in over 16% of the samples, which could lead to inaccurate functional assessment.
登录
查看更多内容
影响因子：
1
作者：
Deliyski, Dimitar D.;Petrushev, Pencho P.;Hillman, Robert E.
通讯作者：
Hillman, Robert E.
影响因子：
2.2
作者：
Shaw, Heather S.;Deliyski, Dirnitar D.
通讯作者：
Deliyski, Dirnitar D.
影响因子：
1.4
作者：
Svec, Jan G.;Sram, Frantisek;Schutte, Harm K.
通讯作者：
Schutte, Harm K.
影响因子：
2.4
作者：
Ikuma, Takeshi;Kunduk, Melda;McWhorter, Andrew J.
通讯作者：
McWhorter, Andrew J.
影响因子：
2.2
作者：
Svec, JG;Schutte, HK
通讯作者：
Schutte, HK