Bidirectional texture function

Bidirectional texture function (BTF) is a 6-dimensional function depending on planar texture coordinates (x,y) as well as on view and illumination spherical angles. In practice this function is obtained as a set of several thousand color images of material sample taken during different camera and light positions. To cope with a massive BTF data with high redundancy, many compression methods were proposed. Biomedical and biometric applications of the BTF include recognition of skin texture

Bidirectional texture function

Bidirectional texture function (BTF) is a 6-dimensional function depending on planar texture coordinates (x,y) as well as on view and illumination spherical angles. In practice this function is obtained as a set of several thousand color images of material sample taken during different camera and light positions. To cope with a massive BTF data with high redundancy, many compression methods were proposed. Biomedical and biometric applications of the BTF include recognition of skin texture