Wavelet transform-based edge detection of non-uniform illumination image

W. Pei; Y. Y. Zhu

doi:10.1117/12.813145

10 November 2008 Wavelet transform-based edge detection of non-uniform illumination image

W. Pei, Y. Y. Zhu

Proceedings Volume 7146, Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Advanced Spatial Data Models and Analyses; 71461I (2008) https://doi.org/10.1117/12.813145
Event: Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Geo-Simulation and Virtual GIS Environments, 2008, Guangzhou, China

Abstract

The distributions of irradiance on the image plane decrease away from the center of the image even if the scene is a uniform white field. This crucial problem is posed in digital image processing, such as edge detection and stereo matching. This paper presents an edge detection method of non-uniform illumination image which uses fitting calibration algorithm to correct the non-uniformity and wavelet transform to extract edges from the images corrected. The experimental results demonstrated the validity of our theoretical model and the effectiveness of wavelet transforms based edge detection of non-uniform illumination image.

Citation Download Citation

W. Pei and Y. Y. Zhu "Wavelet transform-based edge detection of non-uniform illumination image", Proc. SPIE 7146, Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Advanced Spatial Data Models and Analyses, 71461I (10 November 2008); https://doi.org/10.1117/12.813145

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