| Summary: | 碩士 === 中原大學 === 醫學工程研究所 === 86 === A PC-based image processing which can apply to manipulating two-dimensional medical images and offering further three-dimensional reconstruction. It was expected to providefundamental image process and analysis for both medical imagesgenerated from hospitals and biomedical images obtained out offellows engaged in the associated basic research. Moreover, theresulted images from our system could be used for practicalcases of medical education, especially for the human anatomicalstructure. The images which could be processed by the system includedtwo-dimensional images which were generated from differentmedical modalities such as Computer Tomogram﹑Nuclear MagneticResonance images. Those in various types of images file formatswere able to either read or written in the system. The wholesystem based on AVS/Express as environment of softwaredevelopment under Windows system could process images above.This system handled different images processing modes for two-dimensional images such as common functions in imageenhancement, edge detection in image segmentation, closingand opening in image representation and description, theselection of region of interest. Functions of three-dimensionalreconstruction in this system contained the setting of transparency, the addition of rectangular bound box as well asfetching different slices. In order to reach facility of use,the user interface was designed as combination of the relatedfunctions as well as connection to each other. For the need for test and assessment, the system performed actual medicalimages. The separate slices with 260, 200 and 360 pieces respectively at three directions of coronal, midsagittal andtransverse planes were implemented so that 6 hours 30 minutes,9 hour 20 minutes and 7 hours 50 minutes were taken. Besides,a series of Nuclear Magnetic Resonance images based on humanbody, which divided into five parts including head, trunk, thigh, legs and feet, were input to reconstruct. The corresponding number of slices were 34, 70, 74, 45 and 56. The executed time were 11, 36, 37, 12 and 15minites, respectively. In addition, the transparency of three-dimensional images as well as the illustration duringreconstruction procedure were described and shown. Those could be applied to distinct purposes as an assistance inclinical diagnosis and treatment or anatomy education. At present, this system was based on a personal computerand enabled single sort of medical images to be processed andreconstructed by single computer. In the future, we will tryto improve reconstructing time and integrate multiple medicalimages with various properties to carry out three-dimensionalreconstruction. Eventually, it is a goal as well that our system might be connected to medical image database.
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