镜头畸变模式描述了如何根据相机畸变系数改变焦距。
The lens distortion model describes how the distortion coefficients change according to camera focal length.
第一点就是被一些专业人士所熟知的“裁切系数”(crop factor，也称镜头焦距转换率)。
本文给出了测定s BG照相机的焦距畸变系数和光心位置的一种方法。
In this article a method is proposed for determining the focal length, distortion coefficient and optical central position of the SBG camera.
叙述一种用于测试大口径、长焦距光学系统杂光系数、渐晕系数、像面照度均匀性等光学参数的检测方法。
A method is introduced for testing stray light coefficient, vignetting coefficient and image surface uniformity optical system with large aperture and long focal length.
叙述一种用于测试大口径、长焦距光学系统杂光系数、渐晕系数、像面照度均匀性等光学参数的检测方法。
A method is introduced for testing stray light coefficient, vignetting coefficient and image surface uniformity optical system with large aperture and long focal length.
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