Image Processor Selecting Camera Signals for Illuminance and Distortion Correction
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Solution Overview
Problem
Image processing devices with multiple camera modules face challenges in achieving high-quality image processing, especially in low illuminance environments, and suffer from rectification errors due to uneven spacing of lenses, which affects image distortion correction.
Innovation Solution
An image processing device comprising multiple lenses with corresponding image sensors and a processor that selectively outputs signals from different lenses based on illuminance conditions, using a selector to choose between image signals from wide-angle and telephoto lenses to improve zoom performance and reduce rectification errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a dual sensor camera module with wide angle lens and telephoto lens is used to achieve high quality image during zoom operations, then zoom performance is improved in high illuminance environment, but image quality deteriorates in low illuminance environment where telephoto lens cannot function effectively
Solution Approach 1:
The patent implements dynamic switching between different camera modules (wide angle, telephoto, depth) based on real-time conditions including illuminance levels, zoom requirements, and focus distance. This allows the system to adaptively select the optimal lens configuration, ensuring high-quality images in both high and low illuminance environments while maintaining effective zoom performance.
2Adaptability or versatility
If multiple camera modules are integrated into a single image processing device to enable multi-image processing, then image processing capability is enhanced, but device complexity and rectification errors increase due to uneven lens spacing
Solution Approach 1:
The patent performs rectification processing on images from multiple camera modules before composite image generation. By pre-correcting distortion and aligning images based on known lens characteristics and spacing relationships, the system eliminates rectification errors caused by uneven lens spacing, enabling seamless multi-image processing without requiring perfectly uniform physical spacing.
3Manufacturing precision
If images from multiple lenses are processed simultaneously to generate composite images, then image quality and versatility are improved, but rectification errors occur due to uneven spacing between lenses
Solution Approach 1:
The patent incorporates rectification processing that uses feedback from lens spacing measurements and distortion analysis to correct images before composite generation. The system measures actual lens positions and spacing, then applies corrective transformations to eliminate rectification errors, ensuring high precision in the final composite image despite uneven physical spacing between lenses.
Data Source
AI summary
An image processing device including a first lens, a second lens disposed on one side of the first lens, a third lens disposed on the other side of the first lens, a first image sensor which receives an input of a first image obtained from the first lens to generate a first image signal, a second image sensor which receives an input of a second image obtained from the second lens to generate a second image signal, a third image sensor which receives an input of a third image obtained from the third lens to generate a third image signal, a selector which receives the input of the second image signal and the third image signal, outputs the second image signal under a first condition, and outputs the third image signal, under a second condition different from the first condition and an image processor which performs image processing, using the first image signal and an output signal of the selector.