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A pupil location algorithm based on cascaded Haar feature and OTSU dynamic threshold segmentation
Qian, Fanxing1,2; Lei, Hao1,2
2021
会议名称2021 Applied Optics and Photonics China: Optical Sensing and Imaging Technology, AOPC 2021
会议录名称AOPC 2021: Optical Sensing and Imaging Technology
卷号12065
会议日期2021-06-20
会议地点Beijing, China
出版者SPIE
产权排序1
摘要

With the development of visual human-computer interaction, non-invasive eye-tracking technology has been applied in medical diagnosis, psychological research, augmented reality and other fields. As a key step of video-based eye tracking technology, pupil detection requires strong robustness, real-time performance and high precision. Although many pupil detection algorithms have been developed, pupil detection is still a challenge when there are so many interference factors such as bright light, reflection, eyelid or eyelash occlusion, or low image resolution. Aim to address the above difficult problems of pupil detection, this paper uses cascaded Haar features and Otsu dynamic threshold segmentation to improve the performance of the existing pupil detection algorithm. The performance of the improved algorithm is verified with the public human eye image dataset from Swirski with high off-axis and severe eyelash occlusion. The results show that the accuracy of the improved algorithm is 86.3% and 89.7% in the error range of 5 pixels and 10 pixels, respectively. The detection algorithm in this paper can provide accurate pupil center coordinates for eye tracking, which lays a foundation for the high-precision calibration and measurement of the following eye tracker. © 2021 SPIE.

关键词Sight tracking Pupil detection Image processing Edge detection
作者部门空间光学技术研究室
DOI10.1117/12.2607002
收录类别EI ; CPCI
语种英语
ISSN号9781510650053
WOS记录号WOS:000766305700123
EI入藏号20220211437976
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型会议论文
条目标识符http://ir.opt.ac.cn/handle/181661/95662
专题空间光学技术研究室
作者单位1.Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710071, China;
2.University of Chinese Academy of Science, Beijing; 100049, China
推荐引用方式
GB/T 7714
Qian, Fanxing,Lei, Hao. A pupil location algorithm based on cascaded Haar feature and OTSU dynamic threshold segmentation[C]:SPIE,2021.
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