A pupil location algorithm based on cascaded Haar feature and OTSU dynamic threshold segmentation

doi:10.1117/12.2607002

CORC > 西安光学精密机械研究所 > 中国科学院西安光学精密机械研究所 > 空间光学应用研究室

	A pupil location algorithm based on cascaded Haar feature and OTSU dynamic threshold segmentation
	Qian, Fanxing 1,2; Lei, Hao 1,2
	2021
会议日期	2021-06-20
会议地点	Beijing, China
关键词	Sight tracking Pupil detection Image processing Edge detection
卷号	12065
DOI	10.1117/12.2607002
英文摘要	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.
产权排序	1
会议录	AOPC 2021: Optical Sensing and Imaging Technology
会议录出版者	SPIE
语种	英语
ISSN号	9781510650053
内容类型	会议论文
源URL	[http://ir.opt.ac.cn/handle/181661/95662]
专题	西安光学精密机械研究所_空间光学应用研究室
作者单位	1.University of Chinese Academy of Science, Beijing; 100049, China 2.Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710071, 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]. 见:. Beijing, China. 2021-06-20.