Patent Number: 
Section: claims

1. A system for radiographic tissue density evaluation, said system comprising:a cassette configured to be exposed to an X-ray source and configured to obtain information to perform intensity standardization of a captured radiographic image of a subject, the cassette having a minimally radio-opaque backing with a spatial homogeneous X-ray radiographic signature used to estimate a source-detector geometrical inhomogeneity;a calibration bar with a predetermined radiographic signature on or within the cassette to serve as reference for performing the intensity standardization; anda software program to analyze and display the captured radiographic image. 2. The system of claim 1, wherein the minimally radio-opaque backing is made of acrylic polymer or other radiolucent material, having a uniform thickness. 3. The system of claim 1, wherein the calibration bar further comprises a graduated radio-opacity inset of standard density items to form a reference range for an entire dynamic range of X-ray exposure. 4. The system of claim 1, wherein the display further comprises a color-coded intensity image that forms an intuitive colormap based on the calibration bar. 5. The system of claim 1, wherein the software program is installed on a server or a computer that is located in the location of the X-ray radiography machine. 6. The system of claim 1, wherein the software program is installed on a remote server accessed over the Internet. 7. The system of claim 1, wherein the software program is offered as a software on-demand service in the cloud that is accessed over the Internet.