1.Liu L，Zhao Z M. A novel image analysis method for rotational motion of circular feature based on perspective projection，The Imaging Science Journal，2015，63(5):252-262.
2.Liu L, Zhao Z. A new approach for measurement of pitch, roll and yaw angles based on a circular feature. Transactions of the Institute of Measurement & Control, 2013, 35(3):384-397.
3.Liu L, Zhao Z M. Image Processing for Laser Holographic Interference Fringe Pattern with Poor Imaging Quality. Lasers in Engineering, 2013, 26(5-6):367-379.
4.Liu L, Zhao Z M. Morphological image processing in the speckle metrology. The Imaging Science Journal, 2011,59(5):303-310.
5.Zhao Z M, Liu L, Li Y Y, Ji R D, Zhang J H and Shen L B. Application of Holographic Double Exposure Interferometry in the Displacement Measurement of Cantilever Beam Based on Digital Image Processing. Lasers in Engineering, 2014, 28 (1) :81-94.