Figure 2From: Deformable part models for object detection in medical images Factors that influence the elasticity of an FEM. (a) Poisson ratio p represents how displacement due to an incident force is transferred orthogonal to the direction of incidence. In (a) the Poisson ratio is negative, since a contraction in force direction causes an extension orthogonal to it. (b) Elasticity represents the amount of deformation caused by an incident force.Back to article page