公开(公告)号：US20070229681A1

公开(公告)日：2007-10-04

申请号：US11393989

申请日：2006-03-30

申请人： Christopher Leddy ,  Robert Coda ,  Johnny Lee ,  Stephen Nash

发明人： Christopher Leddy ,  Robert Coda ,  Johnny Lee ,  Stephen Nash

IPC分类号： H04N5/217

CPC分类号： H04N5/217

摘要： An imaging system and method with an arrangement for sensing the performance of an optical system and providing data in response thereto and electronically correcting nonuniformity in the performance of the optical system in response thereto. In the illustrative application, the nonuniformity is a porthole effect. In the preferred embodiment, the arrangement for correcting includes an arrangement for providing an inverse distortion to an output of the system electronically. The inverse distortion is applied by generating a plurality of spatial correction coefficients from the performance data, storing the coefficients and applying the coefficients to current data from the optical system. The spatial correction coefficients are statistically generated gain and level correction defect maps. The present teachings should enable a correction of optical distortion in nonideal electro-optical systems without requiring additional optics.

摘要翻译： 一种成像系统和方法，具有用于感测光学系统的性能并且响应于其提供数据并且电子地校正光学系统响应于其的性能的不均匀性的装置。 在说明性应用中，不均匀性是舷窗效应。 在优选实施例中，用于校正的装置包括用于以电子方式向系统的输出提供反变形的装置。 通过从性能数据产生多个空间校正系数，存储系数并将系数应用于来自光学系统的当前数据来应用逆失真。 空间校正系数是统计生成的增益和电平校正缺陷图。 本教导应能够校正非理想电光学系统中的光学失真，而不需要额外的光学器件。