This paper is based on ideal pin-hole imaging model and researches the distortion problem of CCD camera.

本文以理想针孔成像模型为基础，对CCD摄像机的径向畸变问题进行了系统研究。

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The detail in a photograph taken by a pocket-sized digital camera is roughly in focus from a few feet away to almost infinity just like a pin-hole camera children make in school.

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It features guided tours, talks, exhibitions and a pin-hole camera project, aimed at encouraging people to take another look at buildings in the city.

BBC: Birmingham & Black Country

Next to the door is the company's proprietary 30-pin Hero port for connecting the camera to either of the aforementioned BacPacs.

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