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Article type: Research Article
Authors: Rajeswari, G.a; * | Ithaya Rani, P.b
Affiliations: [a] Department of Computer Science and Engineering, Sree Sowdambika College of Engineering, Chettikurichi, Aruppukottai, TamilNadu, India | [b] Department of Computer Science and Engineering, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur District, Vijayawada, Andhra Pradesh, India
Correspondence: [*] Corresponding author. G. Rajeswari, M.E., Department of Computer Science and Engineering, Sree Sowdambika College of Engineering, Chettikurichi - 626 134, Aruppukottai, TamilNadu, India. E-mail: [email protected].
Abstract: Facial occlusions like sunglasses, masks, caps etc. have severe consequences when reconstructing the partially occluded regions of a facial image. This paper proposes a novel hybrid machine learning approach for occlusion removal based on Structural Similarity Index Measure (SSIM) and Principal Component Analysis (PCA), called SSIM_PCA. The proposed system comprises two stages. In the first stage, a Face Similar Matrix (FSM) guided by the Structural Similarity Index Measure is generated to provide the necessary information to recover from the lost regions of the face image. The FSM generates Related Face (RF) images similar to the probe image. In the second stage, these RF images are considered as related information and used as input data to generate eigenspaces using PCA to reconstruct the occluded face region exploiting the relationship between the occluded region and related face images, which contain relevant data to recover from the occluded area. Experimental results with five standard datasets viz. Caspeal-R1, IMFDB, and FEI have proven that the proposed method works well under illumination changes and occlusion of facial images.
Keywords: Face recognition, SSIM, eigenspaces, PCA, FSM, related face
DOI: 10.3233/JIFS-211890
Journal: Journal of Intelligent & Fuzzy Systems, vol. 42, no. 6, pp. 5335-5350, 2022
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