Tilt angle determination in images of semi-regular patterned object using local spectral distortion

Authors

  • Loren M. Tusara ⋅ PH National Institute of Physics, University of the Philippines Diliman
  • Maricor N. Soriano ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

We obtain the tilt angle of rotated checkered fabrics and coral images using local spectral distortion which relates the amount of transformation of a patch by exploiting the orientation of its maximum peaks in the Fourier plane. Fabrics show regularity of textures such that their Fourier peaks are sharp. Coral images, on the other hand, exhibit semi-regular and circularly symmetric patterns of texture which results in broad peaks and ambiguous rotations. Results show a 10.57% error on the recovered tilt angles for fabric samples and 14.36% for coral images samples. Application of this 3D reconstruction extends to classification of corals into its specific family.

Downloads

Issue

Article ID

SPP-2006-PB-02

Section

Poster Session PB

Published

2006-10-25

How to Cite

[1]
LM Tusara and MN Soriano, Tilt angle determination in images of semi-regular patterned object using local spectral distortion, Proceedings of the Samahang Pisika ng Pilipinas 24, SPP-2006-PB-02 (2006). URL: https://proceedings.spp-online.org/article/view/SPP-2006-PB-02.