TITLE:
Study on Focusing of Area Array Camera by Using Frequency of Images
AUTHORS:
Lina Ma, Chongyang Li, Dongjie Wang, Yinglong Zhao, Zhongrui Jin, Zhiyuan Liu
KEYWORDS:
Focusing of a Area Array Camera, Frequency of Images, Defocused Image
JOURNAL NAME:
Optics and Photonics Journal,
Vol.11 No.8,
August
23,
2021
ABSTRACT: Focusing of an area array camera is an important step in making a high precision imaging camera. Its testing method needs special study. In this paper, a method of camera focusing is introduced. The defocusing depth of camera is calculated by using the frequency spectrum of defocused image. This method is especially suitable for the focusing of the Planar Array Camera, and avoids the complicated work of adjusting the focus plane of the planar array camera in the focusing process.