OBTAINING A 3-D ORIENTATION OF PROJECTIVE TEXTURES USING A MORPHOLOGICAL METHOD

On the premise that the texture image is a planar surface, we propose a new morphological approach to obtain a 3-D surface; orientation usin g the variation of texture image caused by projective distortions. Cen troids of texels can be obtained from the farthest texel to the neares t texel sequentially by recursive erosions, so a texture image is segm ented into several sub-regions. Using major axes and sizes of structur ing elements in segmented regions, we can compute a vanishing point an d obtain a 3-D surface orientation. In the experiments, we have ascert ained the proposed algorithm was more effective than the aggregation t ransform.