Multi-Camera Imaging System Temperature Compensation
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Solution Overview
Problem
Multi-camera imaging systems face challenges in accurately reconstructing images due to changes in focal length caused by temperature variations, which affect the distance between the multi-lens and multi-sensor modules, leading to incorrect image reconstruction when conventional temperature compensation mechanisms modify the lens module position without adjusting the corresponding image sensor module.
Innovation Solution
A compensation method that adjusts the distance between the multi-lens and multi-sensor modules using a distance adjustment unit and position-sensing module to generate new image reconstruction parameters based on measured displacements, employing a lookup table to correlate displacement data with appropriate reconstruction parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a temperature compensation mechanism is applied to compensate focal length changes, then clear imaging is maintained, but the distance between the multi-lens module and multi-sensor module changes, causing incorrect image reconstruction
Solution Approach 1:
The patent employs a position-sensing module to detect the displacement of the multi-lens module and provides feedback to an image reconstruction parameter generation unit. This feedback mechanism enables real-time adjustment of image reconstruction parameters based on the actual position of the lens module, ensuring accurate image reconstruction even when the distance between the lens and sensor modules changes due to temperature compensation.
2Reliability
If the lens module position is adjusted for temperature compensation, then focal length errors are corrected, but the imaging position and range on the image sensor change, requiring parameter recalibration
Solution Approach 1:
The patent pre-establishes a correspondence relationship between different lens module positions and image reconstruction parameters. When temperature compensation adjusts the lens module position, the system can quickly retrieve or calculate the corresponding reconstruction parameters without complex real-time calibration, simplifying the overall system complexity while maintaining reliability.
3Manufacturing precision
If conventional temperature compensation is used, then clear imaging is achieved, but image reconstruction parameters become invalid due to module displacement
Solution Approach 1:
The patent makes the image reconstruction parameters dynamic by continuously updating them based on the real-time position of the multi-lens module. Instead of using fixed reconstruction parameters, the system adapts the parameters dynamically according to the actual distance between the lens and sensor modules, preventing information loss and ensuring valid image reconstruction under varying temperature conditions.
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
Ensures precise image reconstruction by continuously measuring and compensating for changes in the distance between the modules, thereby correcting focal length errors and maintaining image quality across temperature fluctuations.
Implementation Method 1
The change of temperature may vary the lens due to effect of thermal expansion
Implementation Method 2
The temperature compensation mechanism is employed to compensate the change of the focal length due to the effect of temperature
Data Source
AI summary
The disclosure relates to a multi-camera imaging system, and a compensation method for image reconstruction. The main components of the multi-camera imaging system are an image capturing module having a multi-lens module and a multi-sensor module, and a distance adjustment unit automatically adjusting the distance between the multi-lens and multi-sensor modules. Note that the distance adjustment unit conducts compensation performed on the change of the system's focal length caused by temperature in the system. The multi-camera imaging system further includes a position-sensing module which is used to sense a displacement or change of the distance made by the distance adjustment unit. A set of image reconstruction parameters corresponding to the displacement or the change of distance is then provided.