Fibrous Structure Optical Fingerprint Capture
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Solution Overview
Problem
Existing methods for creating images of virtual fibrous structures, such as hair, often prioritize appearance over optical and color accuracy, failing to accurately portray the interaction of visible electromagnetic radiation with actual fibrous structures.
Innovation Solution
An apparatus and method that utilize a collimated light source and high dynamic range digital camera to capture images of fibrous structures with precise angular alignment, allowing for the calculation of optical fingerprint parameters and subsequent image correction to achieve optically and color-correct representations, which are then used to create accurate virtual images through Monte Carlo path tracing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional imaging methods are used to create virtual fibrous structures, then the appearance can be customized, but the optical and color accuracy does not match the actual fibrous structure
Solution Approach 1:
The imaging system is segmented into distinct functional modules: a collimated light source module, a positioning module for angular alignment, a high dynamic range digital camera module, and a processing module. This segmentation allows each component to be optimized independently for its specific function while maintaining overall system accuracy for measuring optical properties of fibrous structures.
Solution Approach 2:
The system changes key imaging parameters including using collimated light to eliminate divergence effects, controlling angular alignment precision, and employing high dynamic range settings on the digital camera. These parameter changes enable accurate capture of optical interactions between visible electromagnetic radiation and fibrous structures, achieving measurement precision that matches actual optical properties.
2Measurement precision
If simple lighting and capture methods are used, then the device complexity is low, but the ability to accurately capture optical interactions with fibrous structures is insufficient
Solution Approach 1:
The system performs preliminary actions by using collimated light to pre-condition the illumination before it interacts with the fibrous structure, and by pre-aligning the camera at specific angular positions. This preliminary preparation ensures that when the actual measurement is taken, the optical interactions are captured with maximum accuracy, eliminating the need for complex post-processing corrections.
Solution Approach 2:
The collimated light acts as an intermediary between the light source and the fibrous structure, providing controlled, divergence-free illumination that enables accurate measurement of optical properties. The positioning system serves as another intermediary, mediating the angular relationship between the light source, sample, and camera to ensure precise measurement geometry.
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
The solution enables the creation of images that accurately depict the optical and color properties of fibrous structures, resulting in highly realistic virtual representations that closely match actual fibrous structures, with defined optical fingerprint parameters ensuring minimal error between rendered and initial images.
Implementation Method 1
a collimated light source and high dynamic range digital camera to capture images of fibrous structures
Implementation Method 2
accurately portray the interaction of visible electromagnetic radiation with a fibrous structure
Implementation Method 3
accurately portray the interaction of visible electromagnetic radiation with a fibrous structure
Data Source
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AI summary
Apparatus and method for rendering an image of a fibrous material. The method includes providing parametric fibrous material optical properties derived from actual material fiber samples via the apparatus; providing a parametric virtual light environment; providing a virtual fibrous material array; and rendering an image of the virtual fibrous material array according to the interaction of the parametric fibrous material properties and the parametric virtual light environment.