Frequency and orientation sensitive texture measures using linear symmetry

N-folded Symmetries by Complex Moments in Gabor Space and their Application to Unsupervised Texture Segmentation

IEEE Transactions on Pattern Analysis and Machine Intelligence

Estimation of pith position in untreated log ends in sawmill environments

Computers and Electronics in Agriculture

Analysis of multiple orientations

IEEE Transactions on Image Processing

Original paper: Automatic counting of annual rings on Pinus sylvestris end faces in sawmill industry

Computers and Electronics in Agriculture