公开(公告)号：US07538800B1

公开(公告)日：2009-05-26

申请号：US11240781

申请日：2005-09-27

申请人： David M. Caretti ,  Karen M. Coyne

发明人： David M. Caretti ,  Karen M. Coyne

IPC分类号： H04N9/73

CPC分类号： H04N9/735 ,  G01M11/0264 ,  G01N21/94 ,  G01N2021/945

摘要： Assessing visibility through an optical material by capturing a digital image of a target through the material, determining its intensity, and using such intensity to determine a visual acuity index for the material. An apparatus for performing the method can assess visibility through an optical material exposed to environmental conditions. The apparatus includes an imaging system with a camera for acquiring digital images of the target through the optical material, a system for exposing the material to environmental conditions, and a system for processing intensities of the target in the acquired digital images. The processing system includes programming for relating the intensity of the target to the visual acuity index, whereby visibility through the optical material is determined.

摘要翻译： 通过通过材料捕获目标的数字图像，确定其强度并使用这样的强度来确定材料的视敏度指数来评估光学材料的可视性。 用于执行该方法的装置可以通过暴露于环境条件的光学材料来评估可视性。 该装置包括具有照相机的成像系统，用于通过光学材料获取目标的数字图像，用于将材料暴露于环境条件的系统，以及用于处理所获取的数字图像中的目标的强度的系统。 处理系统包括用于将目标的强度与视力指数相关联的程序，从而确定通过光学材料的可视性。