Imaging Device Image Blurring Reduction Control
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Solution Overview
Problem
Conventional imaging devices, such as digital cameras, face challenges in effectively reducing image blurring caused by camera shake and subject movement, often requiring a trade-off between mechanical and electronic correction methods that can impact image quality and power consumption.
Innovation Solution
An imaging device with an image pickup section, blurring correction and reduction sections, and a control section that detects image shake and subject distance to dynamically adjust the combination of mechanical and electronic blurring correction methods based on detected parameters, optimizing the usage percentages of sensitivity and mechanical/electronic image blurring reduction functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If mechanical vibration control device is used to reduce image blurring, then image clarity is improved, but power consumption increases
Solution Approach 1:
The patent dynamically switches between mechanical and electronic vibration control devices based on detected shake amounts. The control section determines whether to use the mechanical device (high power consumption, high effectiveness) or electronic device (low power consumption, moderate effectiveness) by comparing detected camera shake against threshold values, optimizing the balance between image clarity and power consumption in real-time
Solution Approach 2:
The patent changes the operational parameters of the vibration control system by adjusting the threshold values for switching between mechanical and electronic devices. The control section modifies the detection thresholds based on shooting conditions (e.g., focal length, aperture, shutter speed) to optimize when each device is activated, thereby managing power consumption while maintaining image quality
2Use of energy by moving object
If electronic vibration control device is used to reduce image blurring, then power consumption is reduced, but image clarity improvement is limited
Solution Approach 1:
The system dynamically selects the appropriate vibration control device based on real-time shake detection. When shake amounts exceed thresholds, the mechanical device is activated to provide strong correction for maximum image clarity. When shake is minimal, the electronic device suffices, conserving power while maintaining adequate image quality
Solution Approach 2:
The patent replaces mechanical vibration control with electronic vibration control under specific conditions. By using image processing algorithms (shift amount calculation, image synthesis) instead of mechanical movement, the system reduces power consumption while achieving acceptable image clarity for minor shakes or when mechanical resources are constrained
3Measurement precision
If sensitivity is increased to reduce image blurring, then image clarity is improved, but noise increases
Solution Approach 1:
The patent replaces sensitivity-based blurring reduction with mechanical or electronic vibration control. Instead of increasing sensor sensitivity (which amplifies both signal and noise), the system uses physical stabilization (mechanical device) or computational methods (electronic device with shift calculation and image synthesis) to correct blur, thereby maintaining image clarity without the penalty of increased noise
Data Source
AI summary
In an imaging device including a mechanical image blurring correction and a sensitivity image blurring reduction, a subject-shake amount is calculated based on a motion vector size acquired during a through image process display. Usage percentages of the mechanical image blurring correction and a sensitivity image blurring reduction are sequentially set based on the calculated subject-shake amount. When shooting a still-image, still-image data is recorded after blurring reduction is performed on the still-image data by the mechanical image blurring correction and a sensitivity image blurring reduction, based on the most recently set usage percentages.