3D Camera Field of View Disparity Correction
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Solution Overview
Problem
Conventional 3D camera systems for domestic use face challenges in achieving scalable and economically viable 3D imaging due to the need for sophisticated optics, leading to disparities in the field of view between left and right optical imaging systems, resulting in unpleasant distortions and eye strain.
Innovation Solution
A 3D camera system comprising laterally displaced optical imaging systems with actuators to move lenses and a digital image analyzer that evaluates the field of view disparity between stereoscopic image pairs, adjusting the images to reduce disparity by re-sampling or controlling actuators to ensure consistent zoom levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If laterally displaced optical imaging systems are used to achieve 3D effect, then 3D imaging capability is improved, but field of view disparity between left and right images occurs causing eye strain
Solution Approach 1:
The system uses a digital image analyser to detect field of view disparity between left and right images, generates a disparity value, and feeds this information back to actuators that adjust lens positions. This closed-loop feedback mechanism continuously monitors and corrects field of view mismatch, eliminating the harmful effect of eye strain while preserving 3D imaging capability.
Solution Approach 2:
The patent changes the physical parameter of lens position along the optical axis by using actuators to move lenses laterally. By adjusting the lens position in response to detected disparity, the system modifies the field of view parameters to achieve matching between left and right images, thereby resolving the eye strain problem.
2Manufacturing precision
If sophisticated optics are used to achieve broadcast quality 3D effects, then image quality is improved, but device complexity and cost increase
Solution Approach 1:
The patent replaces complex mechanical optical systems with a combination of simple laterally displaced imaging systems and digital image analysis. Instead of using sophisticated optics to achieve 3D effects, the system uses basic optical components combined with digital processing and actuator-based adjustment, significantly reducing device complexity while maintaining image quality.
Solution Approach 2:
The system uses two simple optical imaging systems that are laterally displaced copies of each other, rather than one complex optical system. By capturing images from two simplified optical paths and processing them digitally, the patent achieves 3D effects without requiring broadcast-quality sophisticated optics, thereby reducing manufacturing complexity and cost.
3Adaptability or versatility
If lens movement is used to adjust field of view, then field of view adjustment capability is improved, but device complexity increases due to additional actuators
Solution Approach 1:
The actuators in the system serve multiple functions: they adjust the field of view of individual lenses, correct field of view disparity between left and right images, and enable zoom functionality. By making the actuator system multi-functional, the patent achieves field of view adjustment capability without proportionally increasing device complexity, as the same components perform multiple corrective and adaptive functions.
Data Source
AI summary
A 3D camera comprises first and second laterally displaced optical imaging systems each comprising one or more lenses. The optical imaging systems also each comprise one or more actuators arranged to move one or more lenses of the respective optical imaging system, and a digital image analyzer configured to evaluate the respective field of view of first and second images of a stereoscopic image pair obtained respectively from the first and second optical imaging systems and to generate a disparity value based on a disparity between the respective fields of view. The 3D camera is arranged in operation to adjust the field of view of one or more images generated by the first and second optical imaging systems responsive to the disparity value so as to reduce the disparity between the respective fields of view of stereoscopic image pairs obtained from the first and second optical imaging systems.