Camera Shake Correction Control for Power Reduction
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Solution Overview
Problem
Existing image capturing apparatuses face challenges in reducing power consumption due to the time required for users to compose a picture, which affects the operation of shake correcting mechanisms, leading to increased power usage.
Innovation Solution
An image capturing apparatus with a shake correcting mechanism that includes a shake amount detecting unit, a composition determining unit, and a correction control unit, which starts the shake correcting process only when the shake amount is below a threshold and the picture composition is determined, using gyro sensors for accurate shake detection and correlation analysis among frames to optimize power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the shake correcting mechanism is operated continuously to correct camera shake, then image quality is improved, but power consumption increases
Solution Approach 1:
The shake correcting mechanism is activated periodically based on detected conditions rather than continuously. The control unit monitors shake amounts and composition determination status, activating correction only when shake exceeds thresholds and composition is stable, thereby reducing power consumption while maintaining image quality when needed
2Reliability
If the shake correcting mechanism is activated early to ensure image quality, then image capture reliability is improved, but power consumption increases due to unnecessary operation
Solution Approach 1:
The system continuously monitors shake amounts and composition determination status, using this feedback to dynamically control the shake correcting mechanism. The control unit adjusts activation based on real-time conditions, ensuring the mechanism operates only when actually needed rather than preemptively, thus balancing reliability with power efficiency
3Reliability
If the shake correcting mechanism operates during composition adjustment, then image quality is maintained, but power consumption increases unnecessarily
Solution Approach 1:
The system dynamically adjusts the operation state of the shake correcting mechanism based on real-time detection of composition determination status. When the composition determining unit detects that composition is being adjusted, the control unit suppresses shake correction operation, and only activates it when composition is determined stable, optimizing power usage while maintaining quality
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
This approach allows for accurate timing of shake correction operations, reducing power consumption by minimizing unnecessary power supply to the shake correcting mechanism and ensuring reliable image capture.
Implementation Method 1
the shake amount detecting unit includes gyro sensors, and detects the shake amount on the basis of angular velocity detection signals output from the gyro sensors
Data Source
AI summary
An image capturing apparatus includes: a shake amount detecting unit that detects a shake amount; a composition determining unit that determines whether the composition of a picture is determined during image capturing on the basis of the correlation among a plurality of frames; a shake correcting unit that performs a shake correcting process on a captured image on the basis of the detected camera shake amount; and a correction control unit that controls the shake correcting unit to start the shake correcting process when the shake amount is smaller than a predetermined reference shake amount and it is determined that the composition of a picture is determined.