A Research of Generation and Data Compression of Medical Images Using Computers

本研究针对医学图像处理中最重要的主题之一--医学图像的生成和数据压缩，提出了基本的图像处理方法。研究结果如下：1.研究结果。医学图像的生成方法(1)一种利用CT图像等多个切片数据的内插重建三维物体的方法。(2)一种从X射线胶片获得的复杂密度轮廓线重建原始三维物体的方法。(3)一种基于希尔伯特扫描从体数据快速生成四叉树数据结构的方法。医学图像的数据压缩方法(1)一种有效的抖动二值图像的数据压缩方法。(2)一种特别适用于包含大的同色区域的图像的数据压缩方法。(3)一种使用一种希尔伯特扫描的大而高密度图像的快速扫描方法。(4)一种适用于医学成像系统硬拷贝仪器的数据压缩方法。(5)一种灵活地执行数据压缩的神经网络系统。(6)一种将给定图像分割成小的八边形区域的解码图像的去噪方法。(7)一种由不连续的静止图像生成平滑运动图像的方法采用插值法。(8)为保证患者个人数据的安全，提出了文字数据和线条画相结合的方法。

This research developed basic image processing methods concerned with one of the most important themes of medical image processing, i. e., "generation and data compression of medical images". The results are follows.1. Generation methods of medical images(1) A reconstruction method for the three dimensional object using interpolation of several sliced data such as CT images.(2) A method which reconstructs original three dimensional objects from complex density contour lines obtained from X-ray films.(3) A high speed generation method of quad-tree data structures from volume data using a kind of Hilbert scan.2. Data compression methods of medical images(1) An efficient data compression method for dithered binary images.(2) A data compression method being especially useful for images containing large same color areas.(3) A fast scanning method of large and high density images using a kind of Hilbert scan.(4) A data compression method being appropriate for hard copy instruments of medical imaging systems.(5) A neural network system executing data compression flexibly.(6) A noise reduction method for decoded images dividing a given image into small octagonal regions.(7) A generation method of smooth moving pictures from discontinuous still images using interpolation.(8) A mixing method of character data and line drawings for the security of personal data of patients.