Zakaria, Zulhadi
(2017)
Development Of Hierarchical Skin-Adaboost-Neural Network (H-Skann) For Multiface Detection In Video Surveillance System.
PhD thesis, Universiti Sains Malaysia.
Abstract
Automatic face detection is mainly the first step for most of the face-based
biometric systems today such as face recognition, facial expression recognition, and
tracking head pose. However, face detection technology has various drawbacks caused
by challenges in indoor and outdoor environment such as uncontrolled lighting and
illumination, features occlusions and pose variation. This thesis proposed a technique
to detect multiface in video surveillance application with strategic architecture
algorithm based on the hierarchical and structural design. This technique consists of
two major blocks which are known as Face Skin Localization (FSL) and Hierarchical
Skin Area (HSA). FSL is formulated to extract valuable skin data to be processed at
the first stage of system detection, which also includes Face Skin Merging (FSM) in
order to correctly merge separated skin areas. HSA is proposed to extend the searching
of face candidates in selected segmentation area based on the hierarchical architecture
strategy, in which each level of the hierarchy employs an integration of Adaboost and
Neural Network Algorithm. Experiments were conducted on eleven types database
which consists of various challenges to human face detection system. Results reveal
that the proposed H-SKANN achieves 98.03% and 97.02% of of averaged accuracy
for benchmark database and surveillance area databases, respectively.
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