@article {havran2010bidirectional,
author = {Havran, V. and Filip, J. and Myszkowski, K.},
title = {Bidirectional Texture Function Compression Based on Multi-Level Vector Quantization},
journal = {Computer Graphics Forum},
volume = {29},
number = {1},
publisher = {Blackwell Publishing Ltd},
issn = {0167-7055},
url = {http://dx.doi.org/10.1111/j.1467-8659.2009.01585.x},
doi = {10.1111/j.1467-8659.2009.01585.x},
pages = {175--190},
keywords = {bidirectional texture function, BRDF, compression, SSIM},
keywords = {I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism—Shading, texture, I.4.1 [Image Processing and Computer Vision]: Digitization and Image Capture—Quantization, Reflectance},
year = {2010},
month={jan},
}