Contour extraction and tissue of amputee of lower limb on ultrasound images

本研究系以电脑辅助制造义肢接受腔系统。我们正在开发的轮廓提取和组织的下肢截肢者的超声图像。超声波诊断设备，其中站立姿势是可能的，它使用使用。从内部入手。截肢者的腿部纹理，执行每个组织的自动轮廓提取。然后，分别进行了三维图像构建和各组织的三维建模及力学分析。另外，我们还开发了肌纤维自动提取系统，作为肌肉的鉴别。（1）进行了二维超声图像的图像合成软件开发，并将其合成为小腿横截面图像。（2）设计了从超声图像中提取皮肤、肌肉和骨骼组织中区域变化的算法。（3）制作了基于CAD数据的皮肤形状切割模型和基于该模型的快速成型层压模型，并对人工腿接受腔的制作进行了尝试。（4）从大量随时间变化的超声图像中，提出了提取肌纤维形状的方法

This study is artificial leg socket manufacturing system by computer aiding. We are development of Contour extraction and tissue of amputee of lower limb on ultrasound images. The ultrasonic diagnostic equipment in which standing posture is possible it uses use. By getting internal. texture of the leg amputee, automatic contour extraction of each tissue is carried out. Then, the following were carried out three-dimensional image construction and three-dimensional modeling and mechanical analysis of each organization. In addition, we developed automatic extraction system of the muscle fiber as a discrimination of the muscle.Research items and results are as follows.(1)The software development for image synthesis in two dimensions of ultrasonic image was carried out, and its the image of the leg cross section.(2)The algorithm for changing the extraction from the ultrasonic image was devised in respect of the region in the organization of skin, muscle and bone,(3)The following were produced : Cutting model of the skin shape based on the CAD data and lamination model by Rapid Prototyping based on this model the artificial leg socket production it tries try.(4)From the large number of ultrasonic images which changed time-related, we developed the method for extracting the shape of muscle fiber