Multi-Axis Camera Stabilization Using Visual-Inertial Odometry
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing camera stabilization systems, such as steadicams and gimbals, struggle to prevent unwanted translational position changes, especially during slow movements like walking, which can create subjective camera movements and disrupt objective shooting perspectives.
Innovation Solution
A multi-axis camera stabilization system that integrates visual-inertial odometry and augmented reality, using a telescopic arm with motors and sensors to detect and compensate for operator movements, ensuring stability across all axes, including vertical movements caused by walking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If spring-loaded arm mechanism is used to prevent translation position changes, then vertical movements are partially prevented, but it bears difficulties in preventing slow movements and involuntary position changes occur in repetitive movements like walking
Solution Approach 1:
The patent replaces the mechanical spring-loaded arm mechanism with an active control system comprising motors, encoders, and a controller. This electronic control system can dynamically adjust to prevent both fast and slow involuntary position changes, including those occurring during repetitive movements like walking, without the limitations of passive mechanical springs.
Solution Approach 2:
The patent implements feedback control using encoders that continuously monitor the actual position of the camera and provide this information to the controller. The controller compares the actual position with the desired position and adjusts the motor output accordingly, enabling reliable prevention of involuntary position changes across various movement frequencies.
2Stability of the object's composition
If steadicam systems with increased moment of inertia are used, then camera stability against rotational movements is improved, but they are difficult to use and install, present big difficulties to the operator, and have a restrictive effect due to their weights
Solution Approach 1:
The patent replaces the heavy mechanical moment of inertia-based stabilization with an active control system using motors and sensors. This substitution dramatically reduces the weight and complexity of the system while maintaining or improving stabilization performance, making it much easier to operate and install.
Solution Approach 2:
The patent changes the fundamental parameter of stabilization from passive mechanical inertia to active electronic control. This parameter change enables the system to achieve stability with minimal weight, improving ease of operation and installation while providing programmable control over stabilization characteristics.
Data Source
AI summary
Disclosed herein is a multi-axis camera stabilization system and operation method. In particular, the disclosure relates to a multi-axis camera stabilization system which uses the visual-inertial odometry method and works in integration with augmented reality, thereby ensuring that the cameras remain stable during shooting. The disclosure further relates to an operation method for the aforementioned.