深度聚焦光场摄像头用于手持3D口腔内扫描,使用无交叉声波的固体浸泡微镜阵列
Jae-Myeong Kwon, Sang-In Bae, Taehan Kim1
1Vatech Co. Ltd., 13 Samsung-ro 2-gil, Hwaseong-si, Gyeonggi-do 18449, Republic of Korea.
APL bioengineering
|August 31, 2023
概括
一个新的深焦光场摄像头 (DF-LFC) 使用固体浸泡微透镜阵列 (siMLA) 进行手持式3D口腔内扫描. 这一创新使得高分辨率,大深度场景成像,克服当前3D成像技术的局限性.
科学领域:
- 光学和光子学 在光学和光子学.
- 生物医学成像技术 生物医学成像技术
- 牙科技术 牙科技术
背景情况:
- 当前的3D体内成像面临着庞大的设备和运动工件的挑战,限制了临床使用.
- 紧型光场相机提供了快速的体积成像,但对于手持应用需要改进的景深.
研究的目的:
- 开发一个深度聚焦光场摄像头 (DF-LFC),配备无交叉声波的固体浸泡微镜头阵列 (siMLA).
- 为了实现高分辨率,大深度3D口腔内扫描,用于临床应用.
主要方法:
- 使用PDMS涂层的微透镜阵列和金属绝缘体金属吸收器制造siMLA.
- 将siMLA集成到光场摄像头中,以延长焦距和减少光学交叉声.
- 用3D牙科幻影测试DF-LFC系统,以获得手持式口腔内扫描精度.
主要成果:
- siMLAs的焦距增加了2.7倍,传导率增加了5.6%-27%.
- siMLAs实现了高f数,高达f/6,从而实现了大深度光场成像.
- 集成的DF-LFC在手持3D口腔内扫描中实现了82 ± 41微米的距离测量误差.
结论:
- 带有siMLA的DF-LFC为高精度的手持式3D口腔内扫描提供了可行的解决方案.
- 这项技术为数字牙科印记,临床内镜和显微镜提供了进步.
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