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Stereovision for 3D Measurements of Fabric Pilling

This paper introduces a 3D imaging system designed for objective evaluation of fabric pilling. The system was aimed at using a pair of regular digital cameras to capture two side-by-side images of a pilling fabric without special lighting, and the robust calibration and stereo-matching algorithms to reconstruct high-fidelity 3D surfaces of fabric. The depth data provides the most relevant information for pilling segmentation and measurements. The outcome of the surface reconstruction is independent of fabric structures, colors and fiber contents. 3D measurements are useful for understanding pilling mechanisms in different abrasive treatments.