Abstract: According to the invention, a 3D image of a virtual model of footwear (2) is obtained, said image including a high number of polygons, from which an image is obtained by means of a rendering engine. The method is characterised in that it comprises steps consisting in: reducing the number of polygons in the image at least to the maximum number of polygons that can be processed by the rendering, positioning an augmented reality marker (4) and the user's foot together in the visual field of the camera in order to capture an image of the foot, and representing the virtual footwear on the position of the foot, thereby obtaining an image of the footwear with the foot inside so that the user can see how the footwear (2) looks on the foot.

Abstract: The invention refers to a method for the non-invasive monitoring of the chemical reaction linked to the curing process of a thermoset plastic material using microwaves, from the real-time measurements of the reflection coefficient of a resonator sensor using a detector that simultaneously provides modulus and phase values. The invention also refers to, as an example of the application of the method, a device for the non-invasive determination of the degree of cure of a thermoset plastic material at microwave frequencies. In another aspect, the invention proposes a method for the determination of the unloaded resonance frequency and the unloaded quality factor of a very strongly coupled microwave resonator and a method for determining the complex permittivity of a material undergoing changes in density, such as those produced during the curing process of polyurethane.