3D Body Modeling Using Patterned Garments
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Solution Overview
Problem
Existing techniques for creating three-dimensional models of human bodies are difficult and expensive for consumers to use, requiring specialized equipment and invasive procedures, and often produce inaccurate results due to the need for precise calibration and insufficient density of correlatable features.
Innovation Solution
A method involving the application of a perceptible pattern to the surface to be modeled, allowing for the extraction and correlation of features from images taken without the need for precise camera calibration, using structure-from-motion modeling with a garment that conforms to the body and includes a unique pattern for feature extraction and correlation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If laser body-scanning systems are used to produce three-dimensional models, then measurement precision is improved, but device complexity and cost increase significantly
Solution Approach 1:
The patent uses a two-dimensional photograph as a copy or representation of the three-dimensional body surface. Instead of directly measuring the 3D body with complex laser scanning equipment, the system captures a 2D image and mathematically reconstructs the 3D model from this simplified representation, thereby reducing device complexity while maintaining model accuracy.
Solution Approach 2:
The patent replaces the mechanical laser body-scanning system with a simpler optical imaging system using standard cameras. The complex mechanical measurement process is substituted by capturing light reflections from the body surface and using computational algorithms to derive three-dimensional information from the two-dimensional image data.
2Manufacturing precision
If specialized laser body-scanning equipment is used, then manufacturing precision is improved, but ease of manufacture and accessibility worsen
Solution Approach 1:
The patent employs inexpensive, readily available materials and equipment such as standard photographs and basic imaging devices instead of expensive, specialized laser scanning equipment. This makes the technology accessible to consumers who can easily obtain the necessary tools without requiring sophisticated or costly hardware.
Solution Approach 2:
By using standard two-dimensional photographs as the input medium, the system eliminates the need for consumers to access specialized laser body-scanning facilities. The photograph serves as an accessible surrogate that anyone can capture, thereby improving ease of manufacture and consumer accessibility while still enabling accurate three-dimensional model production.
3Device complexity
If feature-based modeling without pattern is used, then device complexity is reduced, but measurement precision deteriorates due to insufficient feature density
Solution Approach 1:
The patent applies a patterned covering with distinct visual characteristics to the body surface to enhance feature detectability in images. The pattern provides sufficient contrast and distinctive features that can be reliably detected and correlated across multiple images, thereby increasing feature density and measurement precision without significantly increasing device complexity.
Solution Approach 2:
The patterned covering is applied specifically to the body surface being modeled, creating localized regions with enhanced feature characteristics. This local modification ensures that the areas requiring measurement have sufficient feature density and contrast for accurate modeling, while the rest of the system remains simple and uncomplicated.
4Measurement precision
If pattern application method is used, then measurement precision is improved through sufficient feature density, but ease of operation worsens due to additional steps
Solution Approach 1:
The patterned covering is prepared and applied to the body surface before the imaging process begins. This preliminary action ensures that when the photographs are captured, the pattern is already in place and ready for feature extraction, thereby maintaining high feature density while simplifying the overall operation by avoiding the need for complex real-time pattern generation or adjustment during image capture.
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 enables accurate and detailed three-dimensional modeling of human body parts without specialized equipment, allowing for easy use in a consumer's home environment, providing robust and reliable results with low costs and no expertise required, suitable for fitting clothing and other applications.
Implementation Method 1
a pattern is applied to the surface to be modeled. The pattern which is applied to the surface includes pattern elements that have a uniqueness within the surface to be modeled
Data Source
AI summary
Techniques which employ structure-from-motion modeling techniques to produce 3-D models of any desired accuracy of any surface I the techniques, a pattern is applied to the surface to be modeled The pattern includes elements which are unique within the pattern as applied to the surface and which have a density in the pattern such that when two-dimensional images are made of the surface, correlatable features having the density required for the desired accuracy may be extracted from the two dimensional images In one example of the techniques, a consumer may make the images required to produce a model of his or her body by donning a garment with a pattern having the necessary uniqueness and density, and then using any digital camera to take pictures of their body wearing the garment The model may then be produced from the pictures.