Fig. 3
From: Circular hole pose estimation of porous workpiece based on binocular vision system

(a) The graphic explanation of Pascal’s hexagon theorem on circle (b) The graphic explanation of Pascal’s hexagon theorem on ellipse.
From: Circular hole pose estimation of porous workpiece based on binocular vision system

(a) The graphic explanation of Pascal’s hexagon theorem on circle (b) The graphic explanation of Pascal’s hexagon theorem on ellipse.