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Assessing the Effect of Data Augmentation on Occluded Frontal Faces Using DWT-PCA/SVD Recognition Algorithm

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dc.contributor.author Asiedu, L.
dc.contributor.author Mensah, J.A.
dc.contributor.author Ayiah-Mensah, F.
dc.contributor.author Mettle, F.O.
dc.date.accessioned 2022-01-11T15:31:04Z
dc.date.available 2022-01-11T15:31:04Z
dc.date.issued 2021
dc.identifier.other https://doi.org/10.1155/2021/4981394
dc.identifier.uri http://ugspace.ug.edu.gh/handle/123456789/37556
dc.description Research Articles en_US
dc.description.abstract 'e drift towards face-based recognition systems can be attributed to recent advances in supportive technology and emerging areas of application including voting systems, access control, human-computer interactions, entertainments, and crime control. Despite the obvious advantages of such systems being less intrusive and requiring minimal cooperation of subjects, the performances of their underlying recognition algorithms are challenged by the quality of face images, usually acquired from uncontrolled environments with poor illuminations, varying head poses, ageing, facial expressions, and occlusions. Although several researchers have leveraged on the property of bilateral symmetry to reconstruct half-occluded face images, their approach becomes deficient in the presence of random occlusions. In this paper, we harnessed the benefits of the multiple imputation by the chained equation technique and image denoising using Discrete Wavelet Transforms (DWTs) to reconstruct degraded face images with random missing pixels. Numerical evaluation of the study algorithm gave a perfect (100%) average recognition rate each for recognition of occluded and augmented face images. 'e study also revealed that the average recognition rate for the augmented face images (75.5811) was significantly lower than the average recognition rate (430.7153) of the occluded face images. MICE augmentation is recommended as a suitable data enhancement mechanism for imputing missing data/pixel of occluded face images. en_US
dc.language.iso en en_US
dc.publisher Hindawi en_US
dc.title Assessing the Effect of Data Augmentation on Occluded Frontal Faces Using DWT-PCA/SVD Recognition Algorithm en_US
dc.type Article en_US


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