Frame-Rate-Based Imaging Sensor Shake Correction
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Solution Overview
Problem
Existing imaging technologies face challenges in effectively correcting camera shake, particularly rotational shake, especially at high frame rates, which can degrade image quality during motion picture imaging.
Innovation Solution
An imaging apparatus equipped with a mechanical vibration-proof mechanism that corrects rotational shake by rotating the imaging sensor and an electronic vibration-proof mechanism that adjusts the correction distribution ratio based on frame rate, using a processor to determine the optimal combination of mechanical and electronic processing to minimize shake impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mechanical vibration-proof processing is used for rotational shake correction, then correction effectiveness is improved, but device complexity and power consumption increase
Solution Approach 1:
The shake correction function is divided into two independent parts: mechanical vibration-proof processing for rotational shake and electronic vibration-proof processing for translational shake. This segmentation allows each subsystem to be optimized independently, reducing overall system complexity while maintaining correction effectiveness.
Solution Approach 2:
The correction distribution ratio between mechanical and electronic processing is dynamically adjusted based on detected shake conditions. When rotational shake is detected, mechanical processing is prioritized; when translational shake dominates, electronic processing is enhanced. This dynamic adaptation optimizes correction effectiveness without requiring full mechanical processing for all conditions.
2Adaptability or versatility
If electronic vibration-proof processing is increased for translational shake, then correction coverage is improved, but image quality may deteriorate at high frame rates
Solution Approach 1:
The correction distribution ratio is adjusted as a controllable parameter based on frame rate and shake conditions. At high frame rates, the ratio is modified to reduce electronic processing intensity, preventing image quality deterioration while maintaining adequate correction coverage through the combined mechanical-electronic approach.
Solution Approach 2:
Electronic vibration-proof processing is used to substitute for mechanical processing in correcting translational shake, which cannot be effectively addressed by the mechanical system alone. This substitution expands correction coverage to include both rotational and translational shake components.
3Ease of operation
If correction distribution ratio is fixed, then system control is simplified, but correction effectiveness varies suboptimally across different frame rates
Solution Approach 1:
The correction distribution ratio transitions from a fixed value to a dynamic parameter that automatically adjusts based on detected shake characteristics and frame rate. This dynamic control maintains simplicity for the user while optimizing correction effectiveness across varying operating conditions through automated adaptation.
Solution Approach 2:
The system continuously monitors shake conditions and frame rate, then uses this feedback to automatically adjust the correction distribution ratio. This feedback loop ensures optimal correction effectiveness is maintained across different frame rates without requiring manual intervention, balancing control simplicity with performance optimization.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables effective shake correction even at high frame rates, maintaining image quality by combining mechanical and electronic vibration-proof processing to address rotational and translational shake, enhancing image stability and clarity.
Implementation Method 1
a mechanical vibration-proof mechanism that corrects the rotational shake by rotatably holding the imaging sensor in the roll direction and rotating the imaging sensor
Implementation Method 2
a detection sensor that detects rotational shake, which is delivered to a body that accommodates the imaging sensor, in a roll direction
Data Source
AI summary
The imaging apparatus includes an imaging sensor, a detection sensor that detects rotational shake in the roll direction, a mechanical vibration-proof mechanism that corrects rotational shake, and a processor. The processor is configured to determine, based on a frame rate of motion picture imaging, a correction distribution ratio between mechanical vibration-proof processing using the mechanical vibration-proof mechanism and electronic vibration-proof processing of correcting the rotational shake. The processor is then configured to execute the mechanical vibration-proof processing and the electronic vibration-proof processing.