Power-spectrum-based shape matching for MPEG-7

Seung Hak Rhee; Muhammad Bilal Ahmad; Jong-An Park

doi:10.1117/12.481563

30 August 2002 Power-spectrum-based shape matching for MPEG-7

Seung Hak Rhee, Muhammad Bilal Ahmad, Jong-An Park

Proceedings Volume 4925, Electronic Imaging and Multimedia Technology III; (2002) https://doi.org/10.1117/12.481563
Event: Photonics Asia, 2002, Shanghai, China

Abstract

A frequency transform-based statistical method is proposed for shape matching for MPEG-7. Shape description and its corresponding matching algorithm is one of the main concerns in MPEG-7. The normalized frequency transform is invariant to translation and scaling. The image is transformed into frequency domain using Fourier Transform. Two similar images will have same power spectrum. Annular and radial wedge distributions for the power spectra are extracted. The annular and radial wedges can be set arbitrarily. Different statistical features, such as mean and variances are found for the power spectrum of each selected transformed individual feature. The Euclidean or Minkowsky distance of the extracted features are found with respect to the shapes in the database. The minimum distance is the candidate for the matched shape. The simulation results are performed on the test shapes of MPEG-7.

Citation Download Citation

Seung Hak Rhee, Muhammad Bilal Ahmad, and Jong-An Park "Power-spectrum-based shape matching for MPEG-7", Proc. SPIE 4925, Electronic Imaging and Multimedia Technology III, (30 August 2002); https://doi.org/10.1117/12.481563

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