Image Scanning Apparatus Multi-Height Resolution Analysis
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Solution Overview
Problem
Traditional image scanning apparatuses require multiple focusing and scanning processes to achieve high resolution, leading to complex operations and long scanning times.
Innovation Solution
An image scanning apparatus that captures multiple images of an object at different heights at each scanning position, analyzes their resolutions, and combines the best partial images from various positions to produce a high-resolution scanned image using an image processing unit and an image capturing unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional multiple scanning processes are used to improve scanning resolution, then the resolution of the scanned image is improved, but the scanning time and operational complexity increase
Solution Approach 1:
The patent segments the imaging process by capturing multiple images at different heights (focal planes) simultaneously during a single scan. The image processing unit then segments and selects the clearest image from each scanning position, avoiding the need for multiple complete scanning passes while maintaining high resolution.
Solution Approach 2:
The patent adds the height dimension (Z-axis) to the traditional two-dimensional scanning process. By capturing images at multiple heights simultaneously during one scan, the system resolves the contradiction between resolution and scanning time by utilizing a third spatial dimension.
2Measurement precision
If traditional multiple scanning processes are used to improve scanning resolution, then the resolution of the scanned image is improved, but the operational complexity increases
Solution Approach 1:
The patent merges the focus adjustment function and image capture function into a single simultaneous process. The image capturing unit captures images at multiple heights automatically during one scanning motion, and the image processing unit automatically selects the best focused images, eliminating the need for manual focus adjustment and reducing operational complexity.
3Measurement precision
If multiple images are captured at different heights at each scanning position, then the resolution of the scanned image is improved, but the data processing load increases
Solution Approach 1:
The patent applies partial action by capturing more images than strictly necessary (multiple heights at each position) but then selectively processing only the essential subset. The image processing unit compares images from different heights and selects only the clearest ones, processing a fraction of the captured data while achieving optimal resolution.
Data Source
AI summary
An image scanning apparatus captures multiple images of an object corresponding to different heights at each scanning position, analyzes the resolutions of the multiple images to choose one best partial image, and combines the partial images at different scanning positions to produce a scanned image of the object, so as to improve the resolution of the scanned image.