Two-Sided Scanning Device Brightness Calibration
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Solution Overview
Problem
Two-sided scanning devices struggle to accurately distinguish between scanned images of objects and backgrounds due to similar brightness levels, leading to incorrect recognition of the object's size.
Innovation Solution
Incorporating first and second brightness calibration components and scanning background components, where the second image scanning module aligns with these components to calibrate and differentiate the scanning brightness of both image scanning modules, allowing the scanning background components to be used as distinct backgrounds for each side of the object.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If white boards are used as both brightness calibration components and scanning backgrounds, then the scanning brightness can be calibrated, but it becomes difficult to distinguish between scanned images of objects and scanned images of the scanning background
Solution Approach 1:
The patent divides the scanning background into two distinct components: a first scanning background component and a second scanning background component. These components have different brightness characteristics, allowing the system to distinguish between object images and background images during scanning, thereby resolving the confusion caused by using a single white board for both calibration and background purposes
Solution Approach 2:
Different regions of the scanning background are assigned different brightness properties. The first and second scanning background components have distinct local characteristics that enable the image scanning modules to differentiate between objects and backgrounds based on brightness patterns, thus improving object size recognition accuracy
Data Source
AI summary
A two-sided scanning device includes a first image scanning module, a second image scanning module, a first scanning background component, a first brightness calibration component, a second scanning background component, and a second brightness calibration component. When the second image scanning module moves relative to the first image scanning module to a scanning position, the second image scanning module drives the first scanning background component to move relative to the first image scanning module, so that the first image scanning module and the second image scanning module are aligned with the first scanning background component and the second scanning background component, respectively. Therefore, the first scanning background component and the second scanning background component can be scanning backgrounds for the first image scanning module and the second image scanning module to generate a scanning image of an object with a size corresponding to an actual size of the object.