CAJ | 학술논문

通过对医学体数据进行剖切,在方便观察其内部组织结构的同时,保留周围潜在的重要环境信息,可提供一个整体的情景图像.提出一种基于组织分割的体数据剖切方法,该方法关注于构成体数据的语义层,从医学诊断中的现实需求出发,以逻辑拆分来剖切体数据,以提供更加完整、直观的显示.将梯度矢量扩散法扩展到三维情形,同时提出三维梯度矢量扩散的体数据分割方法.在剖切方法中,首先运用三维梯度矢量扩散法来立体分割医学体数据中的组织,然后通过不同的空间传输函数来操作不同的组织,实现体数据的三维空间剖切体操作.实验结果表明,该方法能够有效去除遮挡数据以揭露内部信息,能保留相关环境信息来增加剖切的可理解性,可取得良好的虚拟剖切效果.
통과대의학체수거진행부절,재방편관찰기내부조직결구적동시,보류주위잠재적중요배경신식,가제공일개정체적정경도상.제출일충기우조직분할적체수거부절방법,해방법관주우구성체수거적어의층,종의학진단중적현실수구출발,이라집탁분래부절체수거,이제공경가완정、직관적현시.장제도시량확산법확전도삼유정형,동시제출삼유제도시량확산적체수거분할방법.재부절방법중,수선운용삼유제도시량확산법래입체분할의학체수거중적조직,연후통과불동적공간전수함수래조작불동적조직,실현체수거적삼유공간부절체조작.실험결과표명,해방법능구유효거제차당수거이게로내부신식,능보류상관배경신식래증가부절적가리해성,가취득량호적허의부절효과.
Splitting medical volume data can provide the image with a whole scene by remaining potentially important surrounding contextual information while observing the internal structure of objects.A splitting method for volume data based on tissue segmentation was presented in this paper.The method paid special attention to the semantic layers composing a volume.Intact and intuitive visualization could be offered by logical splitting of volume data to meet the actual demands of medical diagnosis.In order to extent 2D gradient vector diffusion (GVD) method to 3D case,a 3D GVD scheme for volume data segmentation was proposed.3D GVD scheme was used to sterically segment tissues of medical volume data and then various spatial transfer functions were used to manipulate different tissues for splitting volume manipulation in 3D space for volume data.Experiments showed that the occluding data was removed and information of internal side was effectively uncovered.Meanwhile,the surrounding contextual information was remained to improve the understandability of splitting.