Shake Correction Control Device Dynamic Mode Switching
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Solution Overview
Problem
Existing shake correction systems in imaging apparatuses often have prolonged operation times for mechanical correction units when both mechanical and electronic correction units are selectively operated, which can reduce the lifespan of the equipment.
Innovation Solution
A shake correction control device that acquires and monitors specific conditions such as exposure time, shake amplitude, and frequency, and controls the operation of mechanical and electronic correction units to minimize mechanical correction unit operation time by switching to electronic correction when conditions are stable for a predefined period.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the mechanical correction unit operates continuously to ensure effective shake correction, then the shake correction performance is improved, but the lifespan of the mechanical correction unit is reduced
Solution Approach 1:
The system dynamically switches between mechanical correction unit and electronic correction unit based on real-time shake conditions and exposure time. The operation mode is not fixed but adapts to changing conditions, allowing the mechanical correction unit to operate only when necessary (prolonged shake conditions) rather than continuously, thus extending its lifespan while maintaining correction performance.
Solution Approach 2:
The control device monitors parameters such as exposure time and shake conditions, and changes the correction mode based on these parameter values. When exposure time exceeds a threshold or shake conditions indicate prolonged operation need, the system switches to mechanical correction; otherwise, it uses electronic correction, optimizing both performance and component lifespan.
2Reliability
If the mechanical correction unit is used to correct prolonged shake, then the shake correction effectiveness is improved, but the operation time of the mechanical correction unit is increased
Solution Approach 1:
The system employs dynamic mode switching between mechanical and electronic correction based on real-time assessment of shake conditions and exposure time. The mechanical correction unit operates dynamically only when the controller determines that shake conditions require prolonged correction capability, rather than operating continuously, thus reducing its operation time while maintaining effectiveness.
Solution Approach 2:
The system replaces mechanical correction with electronic correction whenever possible. The controller assesses current conditions and substitutes the mechanical correction unit with the electronic correction unit for routine shake conditions, reserving mechanical correction only for cases where electronic correction is insufficient (prolonged shake), thereby significantly reducing mechanical unit operation time.
3Adaptability or versatility
If both mechanical and electronic correction units operate selectively based on exposure time and shake amount, then the adaptability is improved, but the complexity of control is increased
Solution Approach 1:
The control device dynamically adjusts the correction mode based on real-time conditions (exposure time, shake amount). This dynamic adaptation allows the system to handle diverse shake scenarios effectively while using automated control logic that manages the complexity internally, presenting a simple interface to the user.
Solution Approach 2:
The system uses feedback from sensors monitoring exposure time and shake conditions to automatically determine the appropriate correction mode. This closed-loop control approach enhances adaptability to different conditions while managing control complexity through automated decision-making algorithms that evaluate sensor data and switch modes accordingly.
Data Source
AI summary
A shake correction control device includes an acquisition unit and an operation control unit. The acquisition unit acquires, for each predetermined time, a related amount related to an operation recommendation condition under which an operation of a mechanical correction unit which corrects a shake of a subject image by mechanically moving at least one of a correction optical system or an imaging element is recommended. The operation control unit controls the operation of the mechanical correction unit and an operation of an electronic correction unit which corrects the shake by performing image processing on an image obtained by imaging performed by the imaging element. In a case where a state where the related amount acquired in the acquisition unit satisfies the operation recommendation condition does not continue for a setting period defined by a time series of a plurality of consecutive times, the operation control unit performs a control for operating only the electronic correction unit out of the mechanical correction unit and the electronic correction unit.