Methods utilizing triangulation in metrology systems for in-situ surgical applicaitons

摘要

#$%^&*AU2012202388A820140828.pdf#####METHODS UTILIZING TRIANGULATION IN METROLOGY SYSTEMS FOR INSITU SURGICAL APPLICATIONS Abstract A first metrology method includes the steps of projecting a first image (120a) and a second image (120b), aligning the first image (120a) and the second image (120b) to form an aligned image (122) of a known size, and determining a dimension of a target object ("S") by comparing the aligned image (122) to the target object ("S"). A second metrology method includes the steps of projecting a first image (31 Oa) and a second image (31 Ob), aligning the first image (31 Oa) and the second image (31 Ob) to form an aligned image (322) of a known size by synchronously adjusting a zoom factor ("M") for projecting the first image (31 Oa) and an angle ("an") for projecting the second image (31 Ob), and determining a dimension of a target object ("S") by comparing the aligned image (322) to the target object ("S"). A??I 7AA-1 I Fl-1/3 d1i d2 d dG1110b 2 - - 120a 100 bG 110 l120b 1 l20a p1 P2 P a FIG. 1 0 100 -1-- 120 1 0 4 - ..|...... 102 10 Xa Xb FIG. 2