Electronics and Control

Research on the Construction of Moment invariants of Geometry and Illumination Invariance

  • XU Guili ,
  • ZHONG Zhiwei ,
  • WANG Biao ,
  • TIAN Yupeng ,
  • GUO Ruipeng ,
  • LI Kaiyu
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  • College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

Received date: 2012-09-03

  Revised date: 2013-02-03

  Online published: 2013-03-15

Supported by

National Natural Science Foundation of China(60974105,61104188); Aeronautical Science Foundation of China(20100152003); A Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)

Abstract

In order to solve the non-robustness for affine moment invariant values under the change of light conditions, a normalized light affine moment invariants is proposed which is based on the existing illumination model and Jan Flusser affine invariant moment model so as to deduce a normalized light affine invariant moment. The robustness of this proposed method in various kinds of affine transformations is theoretically proved and the invariance for the method is verified by comparing with experimental results in different conditions of light intensity, direction and color. The experimental results show that this method is suitable for grayscale images and color images. Under the condition of light with direction change, the recognition capability of images of the skew movement is improved by 35%. Under the condition of linear light intensity change, the recognition capability of images of the skew movement is improved by 85%. Under the condition of the light with color change, the recognition capability of image of translation and rotation is improved by 7.8%. Under the condition of the light change, taking multiple satellite model images as an example, the recognition capability of image is improved by 36%. This method with simple calculation is suitable for the identification of target spacecraft.

Cite this article

XU Guili , ZHONG Zhiwei , WANG Biao , TIAN Yupeng , GUO Ruipeng , LI Kaiyu . Research on the Construction of Moment invariants of Geometry and Illumination Invariance[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2013 , 34(7) : 1698 -1705 . DOI: 10.7527/S1000-6893.2013.0123

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