Camera Shake Correction Controller with Adaptive Amplitude and Frequency Settings
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Solution Overview
Problem
Existing imaging apparatuses lack the ability to adjust camera shake correction settings based on user preferences, leading to suboptimal video capture when shooting moving images, as they apply uniform correction without considering the scene.
Innovation Solution
An imaging apparatus with a camera shake correction function that includes a shake detector, correction lens, lens driver, and controller, allowing users to set the amplitude and frequency of shake correction, enabling customizable blur correction for various scenes by generating a drive signal based on user inputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If uniform camera shake correction is activated, then image blur is corrected, but the ability to capture intentional camera movement in moving images is lost
Solution Approach 1:
The camera shake correction function transitions from a static uniform correction mode to a dynamic adaptive mode. The controller dynamically adjusts the drive signal to the correction lens based on real-time detection of shaking characteristics (amplitude and frequency) and user-selected correction levels, enabling the system to adapt to different shooting scenarios including intentional camera movement
Solution Approach 2:
The system changes the parameters of camera shake correction (amplitude threshold and frequency range) based on detection results and user settings. By adjusting these parameters dynamically, the system can differentiate between unintentional shake requiring correction and intentional movement that should be preserved, resolving the contradiction between correction effectiveness and scene adaptability
2Reliability
If camera shake correction is always active, then shaking influence is reduced, but user control over correction intensity is limited
Solution Approach 1:
The system incorporates feedback mechanisms where the controller receives detection results from the shake detector and user input regarding desired correction levels. This feedback loop enables the controller to adjust the drive signal appropriately, maintaining reliable correction while respecting user preferences for different correction intensities or disabled correction
3Measurement precision
If detection sensitivity is increased, then shaking detection accuracy improves, but the system becomes less responsive to intentional movement
Solution Approach 1:
The system applies different correction characteristics to different aspects of detected movement. By analyzing both amplitude and frequency components separately and applying user-selected correction levels to each, the system can maintain high detection sensitivity while preserving intentional movements that fall within specific parameter ranges
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
Enables users to set optimal camera shake correction according to different scenes, improving image quality by allowing flexible adjustment of correction settings, particularly beneficial for shooting moving images where the apparatus may be moved in accordance with the scene.
Implementation Method 1
detecting vibration in a frequency range of about 1 Hz to 10 Hz caused by shaking of the hand of a photographer by the detection means
Implementation Method 2
driving a correction lens in an interchangeable lens and/or an imaging device based on the detection result
Data Source
AI summary
An imaging apparatus is an imaging apparatus including a camera shake correction function for correcting image blur in a captured image. The imaging apparatus includes a shake detector for detecting shaking of the imaging apparatus, a correction lens for correcting the image blur in the captured image, a lens driver for moving the correction lens on a plane perpendicular to an optical axis, an operating unit for receiving an instruction from a user, and a controller for generating a drive signal for the lens driver based on an output of the shake detector. The controller changes the drive signal according to a setting regarding an amplitude of shaking that is a target of camera shake correction and a setting regarding a frequency of the shaking that is the target of camera shake correction. Also, the controller changes the setting regarding the amplitude and the setting regarding the frequency based on an instruction from the user.