System and method to deploy active dampening for lens ringing and vibration

Described herein are methods, apparatus, and computer readable medium to autofocus a lens of an imaging device. Parameters are received indicating a lens position. Lens actuator characteristics are determined. Lens damping parameters may be determined based, at least in part, on the input parameters...

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Hauptverfasser: GOVINDARAM RAJAKUMAR, ZHONG HAIBO, RAMAKRISH RAMKUMAR SREESUDHAN, HUNG HAU LING, SOUNDRAPANDIAN JEYAPRAKASH, VELARDE RUBEN M
Format: Patent
Sprache:eng
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Zusammenfassung:Described herein are methods, apparatus, and computer readable medium to autofocus a lens of an imaging device. Parameters are received indicating a lens position. Lens actuator characteristics are determined. Lens damping parameters may be determined based, at least in part, on the input parameters and the lens actuator characteristics. In some aspects, lens damping parameters include a lens movement step size and a time delay between each step. In some aspects, the lens damping parameters include damping parameters for a plurality of regions of lens movement. Lens movement parameters are determined based, at least in part, on the input parameters and the lens damping parameters. The lens is then autofocused by moving it according to the lens movement parameters.