Software Design For Micro-CT System Based On Flat-panel Detector

Micro-CT as a new nondestructive detecting technology of high spatial resolution has been greatly improved in recent decades. It has unique superiority on samples of small volume such as small animals. Micro-CT has a broad prospect in application and can be put into use in many areas. Compare to traditional micro-ct system, our system has advantages of large imaging areas, no restriction of samples and so on.The dissertation focuses on the software design of micro-CT system above. Based on the needs of the system, put forward the software demand, design the software and implement the code.Using object-oriented mode to design and implement the software, and VC 6.0 to be the development platform. The function had been implemented of the software includes: control the hardware of the whole CT system, which be comprised of step motor, X-ray source on-off, digital X-ray flat-plant detector. Using Microsoft Communication Control ActiveX to implement the series I/O communication, parallel I/O to control the X-ray source on-off and secondary programming of the function interface offer by the plat-plant detector; collection of X-ray projection data, using multithread to implement the data acquisition and progress display; realization of the tomography reconstruction. The FDK algorithm is used as the 3D reconstruction algorithm, which can ignore the effect of cone-angle; by means of basic image processing method such as zoom, adjustment contrast and so on to get more useful details and information. The software also has a good interaction interface to operate simply and conveniently. Make use of the software on experiment, the result is that the software has realized the design requirement expected.