Research On Medical Image Processing System Based On Android Mobile Terminal

The innovation of science and technology drives the development of medical technology, and diagnosis with the aid of all kinds of medical image has become at present the main measure that the doctor diagnosed the illness, so the PACS system has been deployed in most hospitals. DICOM3.0 standard is the sole criterion that PACS system support, and DICOM format is general for DICOM3.0 standard specified in the medical image file format. Different from ordinary image files, DICOM medical image files not only contains medical information such as the patient information, but also has a higher resolution. So they cannot be opened by ordinary picture viewer, and special analytical software is needed for analysising them. Mobile health is a trend of the development of current medical treatment, but the DICOM medical image analysis software mainly concentrated on the PC, the software on the mobile terminal were rare. Therefore, parsing DICOM medical image on the mobile terminal has the vital significance.In view of the above reasons, this paper designed a DICOM medical image processing system based on the Android mobile terminal, which is used to display and process DICOM medical images on the mobile terminal, and it’s convenient for doctors to view medical images in anywhere at any time. This system use Eclipse as the software development platform, and use the MVC pattern to design program. The system mainly realize the following functions:downloading DICOM files from the PC to the mobile terminal; Parsing the DICOM files and extracting relevant medical information; Extracting the pixel information and displaying the medical image; converting DICOM image to BMP format; simply processing the image.Firstly,the system build WEB server in PC terminal to store DICOM files, the mobile terminal access to the server through multi-threaded style, and download the DICOM file to the local SD card. When the downloading is complete, the DICOM file parsing can be started on the mobile terminal. DICOM files is stored based on DICOM standard, so before parsing it need to consult the DICOM3.0 standard, and understand the structure of DICOM files. Then, read the content of DICOM file according to the data elements in the form of byte stream order, consult the DICOM standard data dictionary according to the label, and acquire the meaning of each data element represents, in order to extract the corresponding medical information. On the one hand,the extracted medical information is displayed in the form of list for users to refer to,and on the other hand it is used as the basis of image displaying. According to the extracted image pixel information, readjusting and window processing the pixel data to reduce the image resolution, display the image in bitmap form on the mobile terminal, and save it into general BMP image. In convenient for image viewing and disease diagnosising, this system also has carried on the simple image processing, including gray level transformation and image zooming, etc.After the test, this system can realize the function of downloading medical image files, extracting and displaying DICOM medical information, displaying and processing DICOM medical images, saving DICOM files into BMP files, etc. Due to the popularity and portability of the Android mobile terminal, the system will be more conducive to the view of medical image, and do a meaningful attempt to the development of the mobile medical.