A new cow identification system based on iris analysis and recognition Online publication date: Sat, 07-Jun-2014
by Yue Lu; Xiaofu He; Ying Wen; Patrick S.P. Wang
International Journal of Biometrics (IJBM), Vol. 6, No. 1, 2014
Abstract: There is a growing worldwide trend to implement livestock traceability systems. This paper aims to explore how iris analysis and recognition can be utilised on cow identification to enhance cow management in its traceability system. In general, a typical cow identification system based on iris analysis includes iris imaging, iris detection, and recognition. First, the image quality of the captured sequences is assessed and a clear iris image is selected for subsequent process. Second, the inner and outer boundaries of cow iris are fitted respectively as two ellipses based on the edge images during segmentation. Then we can get the segmented cow iris on which normalisation is carried out using geometric method. Finally, 2D complex wavelet transform (2D-CWT) is used to extract local and global characteristics of the cow iris and the phase of the filtered cow iris is encoded as features. Experimental results indicate the effectiveness of the proposed approach.
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