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Investigating the Influence of Wavelength-Specific Textured Backgrounds in Background Oriented Schlieren (BOS) Imaging

2023International Journal of Innovative Science and Research Technology (IJISRT)

Dhruv Hegde

Abstract

Investigation of wavelength-specific textured background patterns in BOS imaging systems — analyzing spatiotemporal variability, contrast optimization, and background selection criteria for improved schlieren visualization in experimental fluid dynamics.

Key Results

Peak SNR = 22.8 at 550nm textured background wavelength
Peak gradient magnitude G = 52.3 (Sobel operator) at 550nm
Findings align with Bayer-filter green-channel sensitivity
Swept 400–670nm in 30nm increments across repeated trials
BOS ImagingSchlierenComputer VisionFluid Dynamics