Characterizing the Moisture Content of Tea with Diffuse Reflectance Spectroscopy Using Wavelet Transform and Multivariate Analysis.
Xiaoli LiChuanqi XieYong HeZhengjun QiuYanchao ZhangPublished in: Sensors (2012)
Keyphrases
- wavelet transform
- diffuse reflectance
- multiresolution
- multiscale
- distribution function
- subband
- specular reflection
- infrared
- light source
- wavelet coefficients
- image compression
- spectral reflectance
- surface normals
- feature extraction
- photometric stereo
- spectral data
- illumination direction
- gaussian curvature
- shape from shading
- object surface
- intensity values
- smooth surfaces
- light transport