Inclination Correction for Camera Sensor Leveling
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Solution Overview
Problem
Existing photographic apparatuses do not effectively correct for inclination, leading to images being captured with the imager inclined, as they only stabilize against yaw, pitch, and roll components of hand shake without considering the inclination angle formed by rotation around the optical axis.
Innovation Solution
A photographic apparatus with a movable platform and a controller that calculates and corrects the inclination angle by moving the platform on an xy plane perpendicular to the optical axis, ensuring the image is captured level by considering the elevation/depression angle and rotating the movable platform to align the image sensor with the gravitational plane.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the photographic apparatus performs stabilization by moving the movable platform to correct yaw, pitch, and roll components of hand shake, then the hand shake correction is improved, but the inclination angle formed by rotation around the optical axis is not corrected, causing the image to be captured with the imager inclined
Solution Approach 1:
The stabilization function is divided into separate components: first stabilization for yaw correction, second stabilization for pitch correction, and third stabilization for roll correction. The inclination correction is added as a distinct function that calculates inclination angle separately from hand shake components, allowing each stabilization aspect to be addressed independently through controlled movement of the movable platform
Solution Approach 2:
The system calculates the inclination angle of the photographic apparatus as measured with respect to a level plane perpendicular to the direction of gravitational force, and uses this calculated inclination angle as feedback to perform controlled movement of the movable platform for inclination correction, ensuring the imager is properly leveled during image capture
Data Source
AI summary
A photographic apparatus comprises a movable platform and a controller. The movable platform has an imager that captures an optical image through a taking lens, and is movable and rotatable on an xy plane perpendicular to an optical axis of the taking lens. The controller calculates an inclination angle of the photographic apparatus, which is formed by rotation of the photographic apparatus around the optical axis, as measured with respect to a level plane perpendicular to the direction of gravitational force, and performs a controlled movement of the movable platform for an inclination correction based on the inclination angle. The controller calculates an elevation/depression angle that represents an angle at which the optical axis intersects said level plane, and calculates the inclination angle in consideration of the elevation/depression angle.