Title :
A Luminance- and Contrast-Invariant Edge-Similarity Measure
Author :
Kumar, Saravana ; Ong, Sim Heng ; Ranganath, Surendra ; Chew, Fook Tim
Author_Institution :
Dept. of Electr. & Comput. Eng., National Univ. of Singapore
Abstract :
A novel similarity measure for edge-detection that is robust to varying luminance and contrast is presented. It incorporates a regularization term and employs directional FIR edge filters with hyperbolic tangent profiles to ensure improved noise performance and edge localization compared to classical methods
Keywords :
FIR filters; edge detection; FIR edge filters; contrast; contrast-invariant edge-similarity measure; edge localization; edge-detection; hyperbolic tangent profiles; luminance; projection angles; Detectors; Filtering; Finite impulse response filter; Gabor filters; Goniometers; Image converters; Image edge detection; Lighting; Noise measurement; Noise robustness; Edge detection; filtering; projection angles; similarity measure.; Algorithms; Artificial Intelligence; Image Enhancement; Image Interpretation, Computer-Assisted; Information Storage and Retrieval; Light; Pattern Recognition, Automated; Reproducibility of Results; Sensitivity and Specificity; Subtraction Technique;
Journal_Title :
Pattern Analysis and Machine Intelligence, IEEE Transactions on
DOI :
10.1109/TPAMI.2006.236
