Using Optical Walsh Transformation for Feature Extraction in Image Matching

[in Chinese]; [in Chinese]; [in Chinese]; [in Chinese]; [in Chinese]; [in Chinese]

Journals >Acta Optica Sinica >Volume 21 >Issue 2 >Page 167 > Article

Acta Optica Sinica
Vol. 21, Issue 2, 167 (2001)

Using Optical Walsh Transformation for Feature Extraction in Image Matching

[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]

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[in Chinese]

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[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Using Optical Walsh Transformation for Feature Extraction in Image Matching[J]. Acta Optica Sinica, 2001, 21(2): 167 Copy Citation Text

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Abstract

A Novel method is proposed for realizing optical Walsh transformation to extract the most important features in images. The important features can be used in optical image matching of large capacity image library. Based on a hybrid opto-electrical image processing system with an incoherent correlator, the image matching algorithm using optical Walsh transformation is realized successfully.

Keywords

feature extraction hybrid opto-electrical system incoherent correlator optical computing Walsh transformation

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