扇面扫描前列腺超声图象三维重构图形的明暗着色处理

Shading for Three-Dimensional Reconstruction from Sector Scanning Ultrasonic Image of Prostate

研究了当二维超声探头由直肠给入时，由扇面扫描获得的前列腺非平行平面三维重构后立体图形的明暗着色处理方法，并选取了几组不规则图形在实验室作了实验，效果令人满意．最后给出了一例从不同视角观测的明暗着色图形．本课题的研究为下一步开展实际临床应用研究打下了坚实的应用理论基础和提供了必要的关键技术储备．

A method of shading is presented suitable for the three-dimensional reconstruction on the basis of unparallel two-dimensional section images obained from sector scanning when the ultrasonic detecting head is put in rectum.Seveal irregular models have been tested by use of the method mentioned above.The results are satisfactory.Finally,the shading graphs observed from different angles are given. The research outcome of this paper has laid a firm foundation and has made necessary reserve of key technologies for clinical practice.