Wiring Pattern Rasterization for Line Width Consistency
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Solution Overview
Problem
In image processing for wiring patterns, variations in line width occur due to shifting of starting or ending points when extracting outlines from 3D data, leading to inconsistent pixel counts and line widths, which affects the electrical resistance of the formed wire.
Innovation Solution
An image processing device that scans the image in a direction orthogonal to the wire, calculates intersection-to-intersection distances, and determines line widths based on these distances and prescribed widths, ensuring consistent dot formation for each pixel, thereby stabilizing line widths across wires.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If correction processing is applied to suppress line width variation in oblique wires, then manufacturing precision is improved, but processing time increases
Solution Approach 1:
The patent applies preliminary action by performing preprocessing on the wire image data before main processing. Specifically, it detects whether the wire is oblique (inclined at 45 degrees or less to the horizontal direction) and applies appropriate correction in advance. This allows the main processing to proceed efficiently without needing to handle oblique wire variations, thus improving overall processing speed while maintaining precision.
Solution Approach 2:
The patent segments the wire processing into different categories based on orientation. It separates oblique wires (requiring correction) from non-oblique wires (not requiring correction) and applies different processing paths to each segment. This segmentation allows efficient handling of each type without unnecessary processing overhead.
2Ease of operation
If starting point or end point for extracting wire outline is shifted, then processing flexibility is improved, but line width determination accuracy deteriorates
Solution Approach 1:
The patent performs preliminary detection of wire orientation and characteristics before extracting the outline. By determining whether the wire is oblique in advance, it can apply appropriate correction methods during outline extraction, ensuring accurate line width determination regardless of where the extraction starts or ends.
Solution Approach 2:
The patent changes processing parameters based on wire orientation. For oblique wires, it applies correction that accounts for the inclination angle, while for non-oblique wires, it uses standard processing. This parameter adaptation ensures accurate line width measurement across different wire orientations and extraction points.
Data Source
AI summary
An image processing device that processes an image in which a wiring pattern is drawn and outputs the image as raster data in which formation content of wiring print dots is defined for each pixel, includes an input section that receives the image, a scan section that sequentially performs scanning in a scan direction at intervals of the pixel width, a calculation section that calculates an intersection-to-intersection distance in the scan direction based on positions of the intersection points, and a determination section that determines a line width of the wire in the scan direction and determine formation of dots for the determined line width for each pixel based on the intersection-to-intersection distance, the prescribed width, and a line width of an inclination wire which is the line width, in the scan direction, of a wire inclined according to the prescribed angle.