3D Limb Scan Knitting Rows for Custom Garment Fit
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Solution Overview
Problem
Existing methods for producing custom-tailored knitted garments reduce a complete three-dimensional dataset of a limb to a limited number of circumference values at predefined measurement positions, potentially losing information and leading to issues with fit and optical appearance.
Innovation Solution
A computer-implemented method that uses a 3D scan dataset to determine production values by calculating the number of knitting rows and circumference values specifically associated with each row, applying smoothing filters and optics adaptation criteria to ensure precise fit and optimal appearance, and incorporating additional measurement positions for standards if needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a complete three-dimensional dataset of the limb is reduced to a small number of circumference values at predefined measurement positions, then the production process is simplified, but information is lost leading to poor fit and optical appearance
Solution Approach 1:
The complete three-dimensional dataset is segmented by associating circumference values with specific knitting rows. Instead of using a small number of predefined measurement positions, the method divides the limb surface into multiple sections along the length direction, with each section containing multiple height values that correspond to individual knitting rows. This segmentation allows precise control of the knitting process for each row while maintaining information from the complete 3D dataset.
2Ease of operation
If circumference values are determined only at predefined measurement positions, then measurement and production are simplified, but the garment does not achieve optimal fit and appearance
Solution Approach 1:
The method transitions from measuring only at predefined positions along the limb to utilizing the third dimension (height values) by associating circumference measurements with specific knitting row positions. The 3D scan dataset provides not only circumferential information but also precise height/position information, allowing the system to determine which knitting row corresponds to which anatomical location on the limb, thereby achieving precise fit throughout the entire garment length.
3Productivity
If information from the complete three-dimensional dataset is lost during reduction, then data processing is faster, but the garment production quality deteriorates
Solution Approach 1:
The method extracts only the necessary information from the complete three-dimensional dataset that is required for knitting production. Specifically, it extracts circumference values and associates them with corresponding knitting row positions based on height values. This extraction process maintains the essential information needed for high-quality garment production while reducing the data to a manageable format that can be processed quickly and used directly by knitting machines.
Data Source
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AI summary
Computer-implemented method for determining production values for producing a custom-tailored, in particular skin-tight, knitted garment (31) for a limb (3) of a person, comprising the steps of - receiving a three-dimensional dataset (11) of the limb (3) acquired using a 3D scan device (21), - receiving at least one height value describing the dimension of a knitting row (9) in the lengthwise direction of the limb (3) and at least one total length value for at least one lengthwise section (4) of the garment (31) and determining a number of knitting rows (9) for the at least one section (4) of the garment (31) by dividing the total length value by the height value, - evaluating the three-dimensional dataset (11) to derive a circumference information describing the circumference of the limb (3) along at least the length of the limb (3) covered by the at least one section (4), - from the circumference information, determining a circumference value for each n-th knitting row (9) or each knitting row (9) except every n-th knitting row (9), wherein n is a natural number, in the at least one section (4), - wherein the circumference values are used as and/or for deriving production values for the knitted garment (31).