Authors:
M. E. Yildirim
1
;
O. F. Ince
2
;
Y. B. Salman
1
;
J. Kwan Song
2
;
J. Sik Park
2
and
B. Woo Yoon
2
Affiliations:
1
Bahcesehir University, Turkey
;
2
Kyungsung University, Korea, Republic of
Keyword(s):
Gender Recognition, Random Forest, Histogram of Oriented Gradients, Inter-Class Difference, Adaboost.
Related
Ontology
Subjects/Areas/Topics:
Applications
;
Applications and Services
;
Computer Vision, Visualization and Computer Graphics
;
Geometry and Modeling
;
Image and Video Analysis
;
Image Formation and Preprocessing
;
Image Generation Pipeline: Algorithms and Techniques
;
Image-Based Modeling
;
Mobile Imaging
;
Pattern Recognition
;
Shape Representation and Matching
;
Software Engineering
Abstract:
Several methods and features have been proposed for gender recognition problem. Histogram of oriented gradients (Hog) is a widely used feature in image processing. This study proposes a gender recognition method using full body features. Human body from side and front view were represented by Hog. Using all bins in the histogram requires longer time for training. In order to decrease the computation time, descriptor size should be decreased. Inter-class difference was obtained as a vector and sorted in a descending order. The bins with the largest value were selected among this vector. Random forest and Adaboost methods were used for the recognition. As a result of both tests, the classifier using first 100 bins with maximum difference gives the optimum performance in terms of accuracy rate and computation time. Although Adaboost performed faster, the accuracy of random forest is higher in full body gender recognition.