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Method of performing autofocus, autofocus system, and camera comprising an autofocus module
Method of performing autofocus, autofocus system, and camera comprising an autofocus module
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机译:执行自动对焦的方法,自动对焦系统以及包括自动对焦模块的相机
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摘要
Autofocusing a camera while zooming may include zooming the lens to a first zoom position, measuring a first object distance from the camera to an object on which to focus, determining a first focus start position using the first object distance, performing a first autofocus using the first focus start position as a starting point, thereby determining a first focus position. A first lookup object distance may be determined based on the first determined focus position. A first correction factor may be calculated as a ratio between the first lookup object distance and the first object distance. The lens may be zoomed to a second zoom position, and a second focus position may be determined using a second object distance based on the first object distance and a second correction factor based on depths of field at the second and first zoom positions.
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