A robust model-based iris segmentation

  title={A robust model-based iris segmentation},
  author={Chirayuth Sreecholpech and Somying Thainimit},
  journal={2009 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)},
This paper proposes a method to segment iris area from the closed-up eye image. The method is a model-based method. It approximates pupil boundary and iris boundary using two circles, and approximates eyelids using two parabolas. The proposed method utilizes intensity gradient with local refinement to detect pupil boundary. A new concept of using signal to noise ratio (SNR), a ratio of mean and standard deviation of the edge image as a feature to detect outer iris boundary is introduced… CONTINUE READING

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