| 摘要 |
A method and a system for authenticating an object marked with XRF marking is disclosed. The method includes providing a wavelength spectral profile of a detected portion of an X-Ray signal arriving from an object in response to X-Ray or Gamma-Ray radiation applied to the object and filtering the wavelength spectral profile of a detected portion of an X-Ray signal to suppress trend and periodic components from the wavelength spectral profile, which are associated with at least one of noise and clutter in the X-Ray signal portion, thereby obtaining a filtered profile with improved signal to noise and/or signal to clutter ratio from which spectral peaks associated with signatures of materials included in said object can be identified with improved accuracy and reliability. The object is authenticate by processing the filtered profile to identifying one or more peaks therein, which satisfy a predetermined condition, whereby the wavelengths of the identified peaks are indicative of the signatures of materials included in the object. |
