Imaging Apparatus with Frame-Rate Adaptive Shake Correction
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Solution Overview
Problem
Existing imaging systems face challenges in effectively correcting vibrations, particularly rotational and translational shakes, especially at high frame rates, leading to image degradation.
Innovation Solution
An imaging apparatus and method that combines mechanical and electronic vibration-proof mechanisms, dynamically adjusting the distribution ratio of correction processing based on frame rate, using a detection sensor to detect shakes and a processor to determine the optimal blend of mechanical and electronic corrections, including frequency separation and coefficient adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If electronic vibration-proof processing is used alone, then correction flexibility is maintained, but correction effectiveness deteriorates at high frame rates
Solution Approach 1:
The patent combines mechanical vibration-proof processing and electronic vibration-proof processing into a hybrid system. The mechanical vibration-proof mechanism physically shifts the imaging sensor to counteract low-frequency shake, while electronic vibration-proof processing digitally adjusts the imaging region for high-frequency shake. This merging allows the system to maintain correction effectiveness across a wide range of frame rates by leveraging the strengths of both approaches.
Solution Approach 2:
The patent dynamically adjusts the distribution ratio between mechanical and electronic vibration-proof processing based on the frame rate. At lower frame rates, more correction is applied through the mechanical mechanism, while at higher frame rates, more correction is applied through electronic processing. This dynamic adjustment optimizes correction effectiveness for each operating condition.
2Reliability
If mechanical vibration-proof mechanism is used alone, then correction effectiveness is high, but device complexity increases
Solution Approach 1:
The patent segments the vibration-proof correction function into two distinct components: a mechanical vibration-proof mechanism for physical sensor shifting and an electronic vibration-proof processing system for digital image region adjustment. This segmentation allows each component to specialize in specific frequency ranges, improving overall effectiveness while enabling independent optimization and simplification of each subsystem.
3Ease of operation
If correction distribution ratio is fixed, then system operation is simplified, but correction adaptability deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where the processor continuously monitors the frame rate and automatically adjusts the distribution ratio between mechanical and electronic vibration-proof processing accordingly. This feedback-based dynamic adjustment maintains optimal correction performance across varying operating conditions without requiring manual intervention, balancing simplicity of operation with high adaptability.
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
Effectively reduces image degradation by optimizing shake corrections at high frame rates, ensuring clear and stable image capture.
Implementation Method 1
a detection sensor that detects rotational shake, which is delivered to a body that accommodates the imaging sensor, in a roll direction
Implementation Method 2
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
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.