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Issue title: Soft Computing and Intelligent Systems: Techniques and Applications
Guest editors: Sabu M. Thampi, El-Sayed M. El-Alfy and Ljiljana Trajkovic
Article type: Research Article
Authors: Jaiseeli, C.; * | Raajan, N.R.
Affiliations: Department of Electronics and Communication Engineering, School of Electrical and Electronics Engineering, SASTRA Deemed to be University, Tirumalaisamudram, Thanjavur, Tamil Nadu, India
Correspondence: [*] Corresponding author. C. Jaiseeli. E-mail: [email protected].
Abstract: The neurological disorders are developed in adults due to reduced visual perception. Opto Kinetic Nystagmus (OKN) is a clinical method to detect visual perception. For objective measurements, a computational algorithm based OKN detection is preferable rather than clinical practice. In this paper, a memory-efficient Subsampled Lucas-Kanade Optical Flow (SLKOF) is proposed. The proposal employs the Subsampling of images for various levels. The proposal deals with the computation of OKN gain for different image Subsampling factors using the MATLAB platform. The experimental set up to observe OKN is done using computer-based rotation control of the drum through a stepper motor. The results are compared with the well established Lucas-Kanade (LK) method for Optical flow. It is observed that OKN gain corresponds to 1/4th of a subsampled image of the SLKOF method correlates with the LK method for the majority of the cases. This validation evidently elucidates that the proposal is computationally efficient.
Keywords: Opto Kinetic Nystagmus, Lucas-Kanade Optical Flow, eye movements, subsampling, objective method
DOI: 10.3233/JIFS-189849
Journal: Journal of Intelligent & Fuzzy Systems, vol. 41, no. 5, pp. 5265-5274, 2021
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