发明授权
- 专利标题: Systems and methods of image rendering from datasets
- 专利标题(中): 数据集图像渲染的系统和方法
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申请号: US11771329申请日: 2007-06-29
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公开(公告)号: US07903113B2公开(公告)日: 2011-03-08
- 发明人: Smita Krishnan , Robert Schneider , Lining Yang , Min Xie
- 申请人: Smita Krishnan , Robert Schneider , Lining Yang , Min Xie
- 申请人地址: US PA Malvern DE Munich
- 专利权人: Siemens Medical Solutions USA, Inc.,Siemens Aktiengesellschaft
- 当前专利权人: Siemens Medical Solutions USA, Inc.,Siemens Aktiengesellschaft
- 当前专利权人地址: US PA Malvern DE Munich
- 代理商 Alexander J Burke
- 主分类号: G06T15/00
- IPC分类号: G06T15/00
摘要:
A system and method for rendering an MIP image that has reduced high frequency component loss and reduced chessboard artifacts. The method includes accessing volumetric data, having random noise. Rays are shot, or cast, through the volumetric data, onto a voxel grid, which has grid points. Sampling data along each ray is performed to obtain selected sample data points on the ray and a distance from a selected point to a nearest grid point is determined. A voxel intensity value is accessed at each selected point, as a function of the position of the selected point relative to the nearest grid point. The difference between the voxel intensity at each selected point is minimized an image is rendered from the volumetric data as a function of the minimizing step. Multiple methods may be used to minimize the difference between the voxel intensity at each selected point. These include for example 1.) applying a localized low pass filter, 2.) applying a localized high order interpolation kernel, and 3.) applying localized distance remapping methods.
公开/授权文献
- US20080030500A1 Systems and Methods of Image Rendering From Datasets 公开/授权日:2008-02-07
信息查询
IPC分类:
G | 物理 |
G06 | 计算;推算或计数 |
G06T | 一般的图像数据处理或产生 |
G06T15/00 | 3D〔三维〕图像的加工 |