Sciweavers

Share
PR
2007

Extracting image orientation feature by using integration operator

9 years 11 months ago
Extracting image orientation feature by using integration operator
This paper presents an orientation operator to extract image local orientation features. We show that a proper employment of image integration leads to an unbiased orientation estimate, based on which an orientation operator is proposed. The resulting discrete operator has flexibility in the scale selection as the scale change does not violate the bias minimization criteria. An analytical formula is developed to compare orientation biases of various discrete operators. The proposed operator shows lower bias than eight well-known gradient operators. Experiments further demonstrate higher orientation accuracy of the proposed operator than these gradient operators. ᭧ 2006 Pattern Recognition Society. Published by Elsevier Ltd. All rights reserved.
Xudong Jiang
Added 27 Dec 2010
Updated 27 Dec 2010
Type Journal
Year 2007
Where PR
Authors Xudong Jiang
Comments (0)
books