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Pupil Fluctuation Detection Under Dark Environment

  

  1. (School of Computer Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China)
  • Received:2015-11-06 Online:2016-04-14 Published:2018-09-30

Abstract:

 In the detection of dark adaptation, pupil fluctuation is affected by many factors, so it can bring errors to the detection.  This paper converts pupil image into polar coordinate, uses local threshold to detect the pupil edge accurately, introduces periodic light stimulus, converts pupil area into frequency domain from time domain, and detects fluctuations effectively. Experiment results prove that the method introduced is effective for detecting pupil fluctuation in dark environment.

Key words:  dark adaptation, pupil fluctuation, polar coordinates

CLC Number: 

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