Density analysis of collagen fibers based on enhanced frangi filter in Second Harmonic Generation virtual biopsy images. - Cheng-Syun Cai; Chun-Fu Chen 001; Gwo Giun Lee; Guan-Liang Lin; Sin-Yo Chou; Ming-Rung Tsai; Yi-Hua Liao; Chi-Kuang Sun (ChinaSIP, 2014)