Endoscopic System Based on Intraoral Camera and Image Processing
Endoscopic System Based on Intraoral Camera and Image Processing
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DOI：
10.1109/tbme.2018.2866273
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发表时间：
2019-04
影响因子：
4.6
通讯作者：
Masataka Fujimoto;M. Okuda;Shinji Yoshii;S. Ikezawa;T. Ueda;H. Tassery;F. Cuisinier;C. Kitamura
中科院分区：
文献类型：
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作者：
Masataka Fujimoto;M. Okuda;Shinji Yoshii;S. Ikezawa;T. Ueda;H. Tassery;F. Cuisinier;C. Kitamura
目的：在牙科中，牙医用一些视觉放大的信息进行许多治疗。对于根管的深层区域，它通常依赖于牙医用手指进行的探查，因为根管入口非常小，难以观察。在临床实践中，口内相机和内窥镜系统是独立的设备，并且没有传感器来捕获整个牙齿和根管内的图像。本研究的目的是将口内摄影机与内视镜系统联合收割机结合，以利临床应用。研究方法：我们提出了一个内窥镜系统的基础上薄的图像纤维，SOPROLIFE口腔内摄像头作为图像传感器，和一个新的适配器连接两个部分。我们观察到50，25，10，和5线对（LP）/毫米模式的分辨率图表。对采集的图像进行处理，以使用鲁棒的主成分分析去除固定模式噪声并增强对比度。结果：所获得的图像包含所有LP/mm模式，处理后显示出更高的对比度。对于50、25、10和5 LP/mm图案，处理后图像的可见性分别是原始图像的1.7、1.6、2.2和1.9倍。结论：我们基于SOPROLIFE口内相机制造的内窥镜系统可以观察50、25、10和5 LP/mm的图案。经过图像处理后，去除了噪声，获得了高对比度的图像。意义：该系统可以被认为是在临床实践中促进非侵入性和非接触式系统的又一步。
Objective: In dentistry, dentists perform many treatments with a few visually magnified information. About deep area of root canals, it commonly relies on exploration carried out with the fingers of the dentist, because the root canal entrance is very small to be observed. In clinical practice, the intraoral camera and endoscopic systems are separate devices, and there are no sensors to capture both pictures of the whole tooth and those inside the root canal. Objective of this research is to combine the intraoral camera and endoscopic system facilitating to use clinical practice. Methods: We propose an endoscopic system based on the thin image fiber, SOPROLIFE intraoral camera as an image sensor, and a new adaptor to connect the two parts. We observed resolution charts with 50, 25, 10, and 5 line pairs (LP)/mm patterns. The acquired images are processed to both remove fixed-pattern noise using robust principal component analysis and enhance contrast. Results: The acquired images containing all LP/mm patterns were clear and showed higher contrast after processing. Visibility of the processed images is 1.7, 1.6, 2.2, and 1.9 times higher than that of the raw images for 50, 25, 10, and 5 LP/mm patterns, respectively. Conclusion: Our fabricated endoscopic system based on the SOPROLIFE intraoral camera could observe 50, 25, 10, and 5 LP/mm patterns. After image processing, the noise was reduced, and high-contrast images were obtained. Significance: This system can be considered as a further step toward facilitating noninvasive and contactless systems in clinical practice.