We extend the histogram of oriented gradient method to three-channel images which are captured by commercial RGB cameras. Firstly, we reformulate the oriented gradients (HoG) method from the viewpoints of gradient-based image pattern recognition and the directional statistics. Secondly, we develop operations for unification of three directional histograms constructed in channels of colour images.
IOS Press, Inc.
6751 Tepper Drive
Clifton, VA 20124
Tel.: +1 703 830 6300
Fax: +1 703 830 2300 firstname.lastname@example.org
(Corporate matters and books only) IOS Press c/o Accucoms US, Inc.
For North America Sales and Customer Service
West Point Commons
Lansdale PA 19446
Tel.: +1 866 855 8967
Fax: +1 215 660 5042 email@example.com