Efficient Processing Technology Of The Dicom Image Data Of The Study

Digital Imaging and Communications in Medicine (DICOM) Standard is an international normative protocol for communication of medical digital images.With the prevalence of digital medical treatment,the DICOM standard made for medical images'storage and transmission is thought much of by the medical treatment field.The data of medical images is so much,so the efficiency of data processing is very important.For these problems above, in this thesis, we consider the high efficiency of data processing as our goal. On the basis of deeply analyzing DICOM criterion, i do creative and exploratory researches in the algorithm design and code optimization. This thesis mainly includes the contents of several aspects as follows:1. Improved the high-speed displaying algorithm of DICOM image data based on the linear mapping table. When constructing the linear mapping table, we used saturation release method to replace the original algorithm named the slope method of cumulative windows, so that we converted the floating point operation into the integer operation, enhancing the accuracy and speed of computing.2. Invented a new mapping algorithm from the functional image to the anatomical image: the radical mapping algorithm of swift small errors. The algorithm can keep centers tidied absolutely according to the physical space of functional images and anatomical images, rather than that based on pixels tidied. So it avoids the problem of wrong mappings.3. Implanted and improved the algorithm of T value based on the calculator of fx-3800P, then applied it to the computation of T value of fMRI image data.4. Implemented the algorithm of the critical value in the national standard using assembly language. The speed and the accuracy are a little higher than those of FORTRAN program.The Brain Active software mentioned in this paper is developed with 32 bits assembly language, implement the T-test of the fMRI functional image data, this software has much excellent algorithm design and coding examples, all of them have very high accuracy and speed.