An imaging processing method which enables an elasticity image of a body including a cavity to be produced on the basis of the material(s) forming said body, characterised in that the method includes the steps of: - receiving a deformation image illustrating a field of movement of the points of the body on the basis of a pressure difference in the body, - estimating a shape function of the body from the deformation image, said step of estimating the shape function comprising: - detecting the inside and outside contours of the body from the deformation image to obtain a contour image, - assigning a homogeneous distribution of elasticity in the contour image to obtain a work image, - determining the shape function from the work image by implementing a finite element analysis, - calculating an elasticity image of the body on the basis of the estimated shape function, of the pressure difference, and of the deformation image, said step of calculating an elasticity image comprises resolving the following equation: E palpo revisited θ = 3 2 | ∫ R i θ R p θ h * r, θ dr | | ∫ R i θ R p θ ε rr r, θ dr | Δ P with: ∘ θ, the angular position in the body, ∘ r, the radial position in the body, ∘ ΔP the pressure difference, ∘ R i ( θ) and R p ( θ) the inner and outer radii of a palpography field on the basis of the angular position in the body, ∘ h* ( r, θ) the estimated shape function of the body on the basis of the radial and angular positions in the body, ∘ ε rr ( r,θ) the real radial deformation of the body on the basis of the position in the body. - receiving a deformation image illustrating a field of movement of the points of the body on the basis of a pressure difference in the body, - estimating a shape function of the body from the deformation image, said step of estimating the shape function comprising: - detecting the inside and outside contours of the body from the deformation image to obtain a contour image, - assigning a homogeneous distribution of elasticity in the contour image to obtain a work image, - determining the shape function from the work image by implementing a finite element analysis, - detecting the inside and outside contours of the body from the deformation image to obtain a contour image, - assigning a homogeneous distribution of elasticity in the contour image to obtain a work image, - determining the shape function from the work image by implementing a finite element analysis, - calculating an elasticity image of the body on the basis of the estimated shape function, of the pressure difference, and of the deformation image, said step of calculating an elasticity image comprises resolving the following equation: E palpo revisited θ = 3 2 | ∫ R i θ R p θ h * r, θ dr | | ∫ R i θ R p θ ε rr r, θ dr | Δ P with: ∘ θ, the angular position in the body, ∘ r, the radial position in the body, ∘ ΔP the pressure difference, ∘ R i ( θ) and R p ( θ) the inner and outer radii of a palpography field on the basis of the angular position in the body, ∘ h* ( r, θ) the estimated shape function of the body on the basis of the radial and angular positions in the body, ∘ ε rr ( r,θ) the real radial deformation of the body on the basis of the position in the body. ∘ θ, the angular position in the body, ∘ r, the radial position in the body, ∘ ΔP the pressure difference, ∘ R i ( θ) and R p ( θ) the inner and outer radii of a palpography field on the basis of the angular position in the body, ∘ h* ( r, θ) the estimated shape function of the body on the basis of the radial and angular positions in the body, ∘ ε rr ( r,θ) the real radial deformation of the body on the basis of the position in the body.