Illumination modelling for reconstructing the machined surface topography

Illumination estimation is crucial for surface detection methods based on visual image reconstruction. The luminance of the machined topography with desertification fractal structure difficult to accurately describe using existing illumination models, which depend macrosurface geometric features and reflection characteristics. Therefore, model under coaxial light microscopic vision proposed in this paper online complex surfaces special functional manufacturing field. Based scattering theory, studied vision; influencing factors are revealed established. experimental results show that less calculation error occurs when model, can be used more topography. research will lay a foundation monitoring surfaces.