Image Information Extraction Model Based onMulti-features of K-nearest Neighbors
Anmin Xu · Advances in engineering research/Advances in Engineering Research · 2016
Bidirectional Reflectance Distribution Function (BRDF) and Bidirectional Texture Function (BTF) are two major methods used to describe the reflectance of light at a surface under different illuminations and different views.However, due to a large number of measurement data, an efficient compression method is needed.Meanwhile, the requirements of real-time rendering should be met.Under this background, this paper mainly does some exploratory research on BRDF modeling methods based on the qualitative measurements of textures.By conducting BRDF modeling on the measurements derives with different acquisition devices, it obtains the illumination properties of textures.Finally, combined with the property information of textures on the surface of object, under a new light source, from a new viewpoint, it renders the relighting effect of the object under a new light source.