A wavelet transform based multiresolution edge detection and classification schema

G. Palacios; J. R. Beltran

doi:10.1117/12.781837

25 April 2008 A wavelet transform based multiresolution edge detection and classification schema

G. Palacios, J. R. Beltran

Proceedings Volume 7000, Optical and Digital Image Processing; 70000U (2008) https://doi.org/10.1117/12.781837
Event: SPIE Photonics Europe, 2008, Strasbourg, France

Abstract

In this work a new multiresolution method to detect and classify edges appearing in images has been proposed. The edge detection and classification schema is based on the analysis of the data obtained by a multiresolution image analysis using Mallat and Zhong's wavelet. Multiresolution analysis allows to detect edges of different relevance at different scales, as well as to obtain other important aspects of the detected edge. The Discrete Wavelet Transform proposed by Mallat and Zhong has been used for detection and classification purposes. The classification schema developed is based on a simple polynomial-fitting algorithm. Analyzing properties of the fitted polynomial we are able to classify several edge types. The robustness of the proposed method has been tested with different geometrical contour types appeared in the literature. A real edge type has also been introduced: the 'noise', that allow us to implement a novel noise-filtering algorithm simply by eliminating the points belonging to this class. The proposed classification schema could be generalized to real edge types: shadows, corners, etc.

Citation Download Citation

G. Palacios and J. R. Beltran "A wavelet transform based multiresolution edge detection and classification schema", Proc. SPIE 7000, Optical and Digital Image Processing, 70000U (25 April 2008); https://doi.org/10.1117/12.781837

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