Image Blur Correction Division Ratio Control for Large Shakes
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Solution Overview
Problem
Existing image blur correction methods require complex configurations and high monitoring and communication loads to effectively handle large shakes, particularly when dividing image blur correction signals between multiple correction units, and lack a clear rule for determining the division ratio.
Innovation Solution
An apparatus that controls image blur correction using a first correction unit with higher performance and a second unit with lower performance, where a determination unit calculates a final division ratio with the first unit's ratio being larger, to collaboratively drive the correction units and reduce image blur influence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple correction units are used to correct large shakes, then image blur correction performance is improved, but device complexity and monitoring load increase
Solution Approach 1:
The patent divides the image blur correction task into two segments: a first correction unit for high-frequency shake components and a second correction unit for low-frequency shake components. This segmentation allows each unit to specialize in specific frequency ranges, improving overall correction performance while maintaining manageable system complexity through clear functional division.
Solution Approach 2:
The patent implements dynamic switching between correction units based on detected shake characteristics. The system automatically determines which correction unit to activate by analyzing shake frequency and amplitude, enabling adaptive optimization of correction performance without requiring complex simultaneous control of multiple units.
2Reliability
If multiple correction units are used to correct large shakes, then image blur correction performance is improved, but monitoring and communication load increases
Solution Approach 1:
The system dynamically selects which correction unit to activate based on real-time shake detection results. By analyzing shake frequency and amplitude characteristics, the system determines the appropriate correction unit without requiring continuous monitoring of both units simultaneously, thereby reducing communication overhead and energy consumption.
Solution Approach 2:
The correction system performs self-determination of the appropriate correction unit based on detected shake characteristics. The system automatically evaluates shake parameters and selects the suitable correction unit without requiring external control signals or complex communication protocols, reducing the monitoring and communication load.
3Reliability
If one correction unit is used primarily, then correction performance is improved, but the system cannot handle large shakes beyond the primary unit's range
Solution Approach 1:
The patent segments the correction functionality into two distinct units with different performance characteristics. The first correction unit handles high-frequency, small-amplitude shakes with high precision, while the second correction unit handles low-frequency, large-amplitude shakes. This segmentation enables the system to maintain high correction performance within each unit's optimal range while expanding the overall correction capability.
Solution Approach 2:
The system dynamically switches between correction units based on the detected shake characteristics. When shake amplitude or frequency exceeds the primary correction unit's effective range, the system automatically activates the secondary correction unit, thereby adapting to varying shake conditions and expanding the overall correction range without compromising performance.
Data Source
AI summary
An apparatus controls image blur correction by using a first correction unit and a second correction unit having a lower image blur correction performance than that of the first correction unit. The apparatus includes a first acquisition unit configured to acquire a first division ratio, a determination unit configured to determine a final division ratio based on the first division ratio, and a control unit configured to control the first and second correction units based on the determined final division ratio. The determination unit can determine a division ratio where a ratio of the first correction unit is larger than that in the first division ratio, as the final division ratio.