本文对《单井管杆柱绘图软件Draw well V3.0》软件系统升级功能及特点进行了阐述和分析。该软件系统升级版在原版本基础上丰富规范了井下工具示意图、效果图和管柱模板库图例,新开发了数据成图和示意图与效果图转换绘图功能,增强了图件...本文对《单井管杆柱绘图软件Draw well V3.0》软件系统升级功能及特点进行了阐述和分析。该软件系统升级版在原版本基础上丰富规范了井下工具示意图、效果图和管柱模板库图例,新开发了数据成图和示意图与效果图转换绘图功能,增强了图件智能编辑功能,使管柱图绘制效率和质量进一步提高。系统支持工具图及设计成果图的可视化管理,井下工艺管柱图实现可视化绘制。软件升级系统在多个油田得到推广应用,并取得较好的效果。展开更多
In order to perform a high-quality interactive rendering of large medical data sets on a single off-the-shelf PC, a LOD selection algorithm for multi-resolution volume rendering using 3D texture mapping is presented, ...In order to perform a high-quality interactive rendering of large medical data sets on a single off-the-shelf PC, a LOD selection algorithm for multi-resolution volume rendering using 3D texture mapping is presented, which uses an adaptive scheme that renders the volume in a region-of-interest at a high resolution and the volume away from this region at lower resolutions. The algorithm is based on several important criteria, and rendering is done adaptively by selecting high-resolution cells close to a center of attention and low-resolution cells away from this area. In addition, our hierarchical level-of-detail representation guarantees consistent interpolation between different resolution levels. Experiments have been applied to a number of large medical data and have produced high quality images at interactive frame rates using standard PC hardware.展开更多
Three-dimensional reconstructions from tomography slices are paid great attention in medical applications nowadays. This paper introduces the design and the implement of VolGraph system: a new, inexpensive, PC-based v...Three-dimensional reconstructions from tomography slices are paid great attention in medical applications nowadays. This paper introduces the design and the implement of VolGraph system: a new, inexpensive, PC-based visualization tool for three-dimensional medical reconstructions, which fully integrates the latest popular visualization algorithms ranging from classical surface rendering algorithm to volume rendering algorithms, such as Ray Casting, Splatting, and Shear-Warp.The input of VolGraph can be medical ima- ges including CT, MRI, etc, and the output can be in common image, VRML/XML or animation formats. Practice proves that the realization of a medical volume visualization system is now feasible on desktop PCs.展开更多
文摘本文对《单井管杆柱绘图软件Draw well V3.0》软件系统升级功能及特点进行了阐述和分析。该软件系统升级版在原版本基础上丰富规范了井下工具示意图、效果图和管柱模板库图例,新开发了数据成图和示意图与效果图转换绘图功能,增强了图件智能编辑功能,使管柱图绘制效率和质量进一步提高。系统支持工具图及设计成果图的可视化管理,井下工艺管柱图实现可视化绘制。软件升级系统在多个油田得到推广应用,并取得较好的效果。
基金the Advanced Project Foundation between China and France(PRA SI03-02).
文摘In order to perform a high-quality interactive rendering of large medical data sets on a single off-the-shelf PC, a LOD selection algorithm for multi-resolution volume rendering using 3D texture mapping is presented, which uses an adaptive scheme that renders the volume in a region-of-interest at a high resolution and the volume away from this region at lower resolutions. The algorithm is based on several important criteria, and rendering is done adaptively by selecting high-resolution cells close to a center of attention and low-resolution cells away from this area. In addition, our hierarchical level-of-detail representation guarantees consistent interpolation between different resolution levels. Experiments have been applied to a number of large medical data and have produced high quality images at interactive frame rates using standard PC hardware.
文摘Three-dimensional reconstructions from tomography slices are paid great attention in medical applications nowadays. This paper introduces the design and the implement of VolGraph system: a new, inexpensive, PC-based visualization tool for three-dimensional medical reconstructions, which fully integrates the latest popular visualization algorithms ranging from classical surface rendering algorithm to volume rendering algorithms, such as Ray Casting, Splatting, and Shear-Warp.The input of VolGraph can be medical ima- ges including CT, MRI, etc, and the output can be in common image, VRML/XML or animation formats. Practice proves that the realization of a medical volume visualization system is now feasible on desktop PCs.
