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Cutting Affine Moment Invariants

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  • Jianwei Yang
  • Ming Li
  • Zirun Chen
  • Yunjie Chen

Abstract

The extraction of affine invariant features plays an important role in many fields of image processing. In this paper, the original image is transformed into new images to extract more affine invariant features. To construct new images, the original image is cut in two areas by a closed curve, which is called general contour (GC). GC is obtained by performing projections along lines with different polar angles. New image is obtained by changing gray value of pixels in inside area. The traditional affine moment invariants (AMIs) method is applied to the new image. Consequently, cutting affine moment invariants (CAMIs) are derived. Several experiments have been conducted to evaluate the proposed method. Experimental results show that CAMIs can be used in object classification tasks.

Suggested Citation

  • Jianwei Yang & Ming Li & Zirun Chen & Yunjie Chen, 2012. "Cutting Affine Moment Invariants," Mathematical Problems in Engineering, Hindawi, vol. 2012, pages 1-12, April.
    • Handle: RePEc:hin:jnlmpe:928161
    DOI: 10.1155/2012/928161
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