A mechanical-noise suppressor for digital cameras and camcorders (信号処理)

概要

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This paper proposes a mechanical-noise suppressor for digital cameras and camcoders. With a given timing information about the noise periods, mechanical noise generated by motors and lens actuators are suppressed based on a reference noise data. The reference noise is prepared in advance and stored in a memory for generating a noise replica. Then, the noise replica is subtracted from the noisy signal to suppress the mechanical noise. Simulation results show that the mechanical noise generated by zooming and auto-focusing are successfully suppressed with little distortion in the target signal.
2010-01-14