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A Comparative Study of Face ‎Recognition ‎Algorithms ‎under Occlusion

Mr. Ali Rehman Shinwari and Mr. Majid Ayoubi ‎

Volume 2 Issue 1 | Dec 2020

DOI: 10.31841/KJET.2021.15

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Abstract

Face recognition algorithms are used to automatically ‎recognize ‎human faces. It has got a wide variety of ‎applications in many areas such as ‎Surveillance, access, ‎security, advertisement, healthcare, and etc. Many big ‎tech ‎companies have already adopted this technology and it has ‎been ‎proved as promising convenient biometric technology. ‎In this paper, we ‎are comparing the face recognition ‎algorithms performance against the ‎datasets that are ‎reflecting considerable occlusion (the hidden part of the ‎‎face, the face parts could be hidden with scarf, glasses, hair ‎or any other ‎object). We selected two publicly available ‎datasets, the first one is the ‎face disguise dataset that ‎reflects major occlusion and the second one that ‎is Specs on ‎Faces (SoF) dataset that reflects partial occlusion. After the ‎‎data collection, we run the data preprocessing techniques ‎in which we ‎removed the existing noise to the datasets and ‎organized them into ‎different sets. Afterward, we applied ‎feature extraction algorithms and ‎then we fed them into ‎classifiers to get algorithm's performance. At the ‎end of the ‎experiments, we observed that the Local Binary Pattern ‎‎Histogram (LBPH) algorithm outperforms the other two ‎algorithms by ‎securing 33.444% accuracy against the ‎dataset with major occlusion and ‎‎98.504% accuracy ‎against the dataset with partial occlusion, and Linear ‎‎Discriminant Analysis (LDA) secured the second position ‎against the ‎dataset with major occlusion but third position against ‎the dataset with ‎partial occlusion. ‎


Keywords: Face Recognition; PCA; LDA; LBPH; Specs on ‎Faces; Occlusion; ‎Face Disguise Dataset