TY - Computer Science A1 - ZHOU Li-jun, LIU Xiao T1 - Low-contrast Crack Detection Method Based on Fractional Fourier Transform Y1 - 2019-06-14 JF - Computer Science JO - Computer Science SP - 208 EP - 210 VL - 46 IS - 6A UR - https://www.jsjkx.com N1 - ER -