为了用普通低成本的广角镜头摄像机实现较大视场的精确定量的图像测量，必须对畸变图像进行校正。
To implement accurate metric measurement within a large field of view with common off the shelf cameras, the image distortion caused by wide angle lenses should be corrected.
本文提出了超广角井下电视系统视场角的概念及标定，以及利用该电视系统对井内落物尺寸进行精确测量的方法。
This article describe the concept and definiens of Angle of view of super wide Angle bore hole television system, and by means of this television system to measure the object in the well accurately.
广角无限远视景显示系统以其图像清晰、视场角大、纵深感强等特点被广泛的应用在飞行模拟器中。
Because of image clear, visual field wide and good depth of field, wide-angle infinity display system has been used in a lot of flight simulators.
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