Ha Usler G, Lindner M W
J Biomed Opt. 1998 Jan;3(1):21-31. doi: 10.1117/1.429899.
"Coherence radar," an optical 3-D sensor based on short coherence interferometry, is used to measure skin surface topology. This method is called optical coherence profilometry (OCP) and it may be a useful tool for medical diagnosis in dermatology because different medical conditions show distinct alterations of the skin surface. The measuring uncertainty is less than 2 μm. The measuring time is about 4 s. in vivo 3-D mapping of naked skin was performed without preparation. For clinical application, a fiber optical implementation was introduced. Spectral radar is an optical sensor for the acquisition of skin morphology based on OCT techniques. The scattering amplitude a(z) along one vertical axis from the surface into the bulk can be measured within one exposure. No reference arm scanning is necessary. The theory of the sensor, including the dynamic range, is discussed and in vivo measurements of human skin by a fiber optical implementation of the sensor are demonstrated. © 1998 Society of Photo-Optical Instrumentation Engineers.
基于短相干干涉测量法的光学三维传感器“相干雷达”被用于测量皮肤表面拓扑结构。这种方法被称为光学相干轮廓测量法（OCP），由于不同的医学病症会使皮肤表面呈现出明显变化，所以它可能是皮肤病学医学诊断中的一种有用工具。测量不确定度小于2微米。测量时间约为4秒。在无需准备的情况下对裸露皮肤进行了体内三维测绘。为了临床应用，引入了一种光纤实施方案。光谱雷达是一种基于光学相干断层扫描（OCT）技术获取皮肤形态的光学传感器。在一次曝光内即可测量从表面到内部沿一个垂直轴的散射幅度a(z)。无需进行参考臂扫描。讨论了该传感器的理论，包括动态范围，并展示了通过该传感器的光纤实施方案对人体皮肤进行的体内测量。© 1998 国际光学工程学会。
