Author(s)

Yuan Xiaoxia ¹, Wang Qingmin ¹, Luo Tailai ¹, Liu Qiuhong ¹, Li Kehua ¹

Affiliation(s)

¹ PLA Naval Medical Center, Naval Medical University, Shanghai, 200433, China

Corresponding Author

Li Kehua

ABSTRACT

This article investigates a visual tracking method for fixation point localization. By segmenting the observation area image layer by layer multiple times, nine feature points of each segmentation are selected using a layout centered around eight points, and a nonlinear homogeneous pupil corneal matrix is constructed to solve the local correspondence of the pupil corneal vector in each segmentation area, achieving real-time calculation of the coordinate position of the gaze point on the screen. The position calculation accuracy of this method will not decrease with the increase of the screen area, and it has good application value in the field of line of sight tracking with a large observation area and high measurement accuracy requirements.

KEYWORDS

Visual Tracking; Localization; Pupil Cornea; Nonlinear Matrix; Layer By Layer Segmentation

CITE THIS PAPER

Yuan Xiaoxia, Wang Qingmin, Luo Tailai, Liu Qiuhong, Li Kehua, A Method for Gaze Fixation Point Localization through Layer by Layer Segmentation and Nine Point Localization. Journal of Image Processing Theory and Applications (2025) Vol. 8: 153-157. DOI: http://dx.doi.org/10.23977/jipta.2025.080118.

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