Dynamic View-Angle Adjustment for Curved Surface Image Capture
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Solution Overview
Problem
Current methods for inspecting electronic devices' appearance quality are inadequate due to the difficulty in capturing images that accurately represent curved or non-uniform surfaces, as traditional 2D image detection devices fail to account for light reflection variations at different view-angles, necessitating manual inspection and challenging automated defect detection.
Innovation Solution
A capturing method and system that dynamically detect and adjust the capturing angle to reduce the dimension characteristic of light reflection areas in appearance images, using a combination of image capturing, detecting, determining, and adjusting units to ensure accurate representation across multiple view-angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional 2D planar static image detecting device is used, then device complexity is low, but measurement precision and reliability of defect detection deteriorate due to inability to detect defects on curved surfaces with light reflection
Solution Approach 1:
The patent applies dynamics by transitioning from static 2D image capture to dynamic multi-view-angle capture. The image capturing unit rotates around the object to capture images from multiple angles, and the system dynamically adjusts capturing parameters based on detected light reflection areas, enabling accurate defect detection on curved surfaces while managing system complexity through controlled motion.
Solution Approach 2:
The patent transitions from 2D planar imaging to 3D multi-view-angle imaging by rotating the image capturing unit around the object. This dimensional change allows the system to capture light reflection characteristics from multiple perspectives, enabling accurate defect detection on curved surfaces that cannot be achieved with traditional 2D static imaging.
2Measurement precision
If image capturing is performed at multiple view-angles, then measurement precision improves for curved surface inspection, but light reflection control becomes difficult and productivity decreases
Solution Approach 1:
The patent implements feedback by using a detecting unit to analyze light reflection areas in captured images and feed this information back to adjust capturing parameters. The system dynamically modifies capturing angles and parameters based on real-time light reflection characteristics, ensuring optimal image quality while maintaining inspection efficiency through adaptive control.
Solution Approach 2:
The patent applies parameter changes by dynamically adjusting capturing angles and other imaging parameters based on detected light reflection characteristics. The system modifies capturing parameters in real-time to optimize image quality for each view-angle, enabling efficient multi-angle inspection without manual intervention while maintaining high measurement precision.
3Measurement precision
If capturing angle is adjusted to reduce light reflection area, then measurement precision improves, but capturing time increases and productivity decreases
Solution Approach 1:
The patent applies preliminary action by pre-establishing the relationship between capturing angles and light reflection characteristics through automated detection. The system proactively adjusts capturing parameters based on predicted light reflection patterns, reducing the need for repeated trial-and-error adjustments and minimizing total capturing time while maintaining high measurement precision.
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
This approach effectively reduces the impact of light reflection on image quality, allowing for automated defect detection and reducing hardware costs by minimizing the need for specific light sources, while ensuring consistent image capture across various view-angles.
Implementation Method 1
the light reflection area of an appearance image captured by an image capturing unit at a capturing angle
Data Source
AI summary
A capturing method for a plurality of images with different view-angles and a capturing system using the same are provided. The capturing method for the images with different view-angles includes the following steps. An appearance image of an object is captured by an image capturing unit at a capturing angle. A light reflection area of the appearance image is detected by a detecting unit, and a dimension characteristic of the light reflection area is analyzed by the same. Whether the dimension characteristic of the light reflection area is larger than a first predetermined value is determined. If the dimension characteristic of the light reflection area is larger than the first predetermined value, then the capturing angle is adjusted within a first adjusting range. After the step of adjusting the capturing angle within a first adjusting range is performed, the step of capturing the appearance image is performed again.