Edge detection using adaptive scales wavelet transform

H. J. Liu; Loung Goung; Zheng Tan

doi:10.1117/12.170090

15 March 1994 Edge detection using adaptive scales wavelet transform

H. J. Liu, Loung Goung, Zheng Tan

Proceedings Volume 2242, Wavelet Applications; (1994) https://doi.org/10.1117/12.170090
Event: SPIE's International Symposium on Optical Engineering and Photonics in Aerospace Sensing, 1994, Orlando, FL, United States

Abstract

The edge of an image is one of the important features in image analysis and processing. The edge often corresponds to the sharp variation points of intensities that carry most of the image information. In practice, the implementation of edge detection is often performed by some multiscale operators. Wavelet transform is closely related to multiscale edge detection. This paper suggests a regularization method for determining scales for wavelet transform adaptively for each site in image plane. An energy function was introduced to obtain a set of optimal scales by minimizing this function. The multiscale wavelet transform filter was derived from this energy function. The maxima of wavelet transform modulus at these scales acquired from the local site of the image were detected to form the edge map. Experiments for real image shows that both step and differ edges can be detected by this method.

Citation Download Citation

H. J. Liu, Loung Goung, and Zheng Tan "Edge detection using adaptive scales wavelet transform", Proc. SPIE 2242, Wavelet Applications, (15 March 1994); https://doi.org/10.1117/12.170090

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available