The generation of digitally reconstructed radiographs with six parameters
The generation of digitally reconstructed radiographs (DRRs) is a significant procedure in several medical imaging applications such as 2D/3D image registration. Also, digitally reconstructed radiographs play an important role in modern radiation therapy. They are planar X-rays that can be generated from the same data sets used for the planning CT scan, taken with the patient in the treatment position. To reduce the patient setup errors, image registration, such as 2D/2D, 2D/3D, 3D/3D image registration, was introduced. Essentially, 2D/3D registration is a procedure that the DRRs resulted from a 3D CT data set are to be matched with the real X-ray images by applying a rigid transformation. This means that we should look for a translation (expressed by three parameters tx, ty, tz) and a rotation (expressed with three parameters as well θx, θy, θz) in space. At last, a fast DRR generation technique, called threedimension Bresenham line generation algorithm, with which satisfactory images are obtained would be proposed.
Xin Li Ling-hong Zhou Xin Zhen Wen-ting Lu
School of Biomedical Engineering Southern Medical University Guangzhou, China
国际会议
成都
英文
1-4
2010-06-18（万方平台首次上网日期，不代表论文的发表时间）