摘要(英) |
Modulation transfer function MTF is an important indicator to evaluate the performance of the optical system. In this paper, we use the MTF measurement methods to verify performance of anti-shake systems for camera phones.
We analysis modulation for captured pictures under the conditions of stationary as Mo, and modulation for captured pictures under the conditions of vibration as Mi , and is defined Mi/Mo as MTF.
The key issues resulted in blurred images when taking pictures are due to longer exposure time and the vibration of the camera, so we can calculate MTF for anti-shake systems with on and off condition under different exposure time and different frequencies of vibration, in order to evaluate the effectiveness of anti-shake system. |
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