Directionality Measurement and Illumination Estimation of 3D Surface Textures by Using Mojette Transform

International audienceThis paper presents a new approach to measure texture directions and estimate illumination tilt angle of 3D surface textures by using mojette transform. Feature vectors are generated from variances of 72 mojette transform projections with different project angles. The measured texture directions are compared with human perceptional judgement. Further more, we estimate illumination tilt angles by minimizing the Euclidean distance of the feature vector between the test image and the training sets. Experimental results show the effectiveness and accuracy of our proposed approach