An energy spreading transform approach to efficient image retrieval

W. Saengow, B. Thipakom, D. Cochran

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


When searching a large database of images for ones that are visually similar to a particular reference images, it is desirable to have efficient means for making coarse comparisons between images. This paper describes an approach for efficient image retrieval using a recently discovered energy-spreading Hadamard transform arising from an orthogonal basis of unimodular sequences called the Prometheus Orthonormal Set (PONS). The energy-spreading properties of this PONS transform suggest that global comparison of key features of images can be accomplished using any subset of the PONS transform coefficients.

Original languageEnglish (US)
Pages (from-to)1861-1864
Number of pages4
JournalConference Record of the Asilomar Conference on Signals, Systems and Computers
StatePublished - 2000
Externally publishedYes
Event34th Asilomar Conference - Pacific Grove, CA, United States
Duration: Oct 29 2000Nov 1 2000

ASJC Scopus subject areas

  • Signal Processing
  • Computer Networks and Communications


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