Stephenson and Wiley demonstrate that three-dimensional (3D) CT-based simulation is an improvement in the simulation process. The growing importance of CT in radiation oncology treatment planning has been discussed previously [1] and is further emphasized in this article. The advantages of geometric optimization in three dimensions for radiation therapy treatment planning also are described. Th...

Automated optical inspection systems are frequently utilized to sort out defective objects. However, those objects might actually be reworked or disposed. The combination of defect detection and specific processing in a single operation helps to reduce reworking time and waste. Defect detection on 3D objects is approached by combining the techniques of surface detection and geometry estimation....

We present our concepts for pre-operative planning of brain tumor resections. The proposed system uses a combination of traditional and novel visualization techniques in order to support the surgeon during the planning process. A set of multimodal 2D and 3D views conveys the relation between the lesion and the various structures at risk and also depicts data uncertainty. To facilitate efficient...

Purpose: In the current study, using different radiobiological models, tumor control probability (TCP) and normal tissue complication probability (NTCP) of radiotherapy plans were calculated for three-dimensional conformal radiation therapy (3D-CRT) and intensity modulated radiation therapy (IMRT) of prostate cancer.Methods and Materials: 10 prostate plans were randomly selected among patients ...

This paper presents ideas on 3D visualization for pre-operation planning of orthopedic surgery. The focus is on visualizing clinically relevant data for planning a Total Hip Replacement (THR) and investigating how 3D visualization can help improve the planning of procedures. The result is an application that showcases the ideas and reached conclusions. The application visualizes the fit of impl...

The task of 3D physical design is to map a circuit from a netlist (structural) representation into a geometric (physical) representation according to a specific 3D IC technology with multiple active device layers. This paper discusses the recent progress made on the major steps in 3D physical design, including 3D floorplanning, 3D placement, 3D routing and thermal through-silicon via (TS via) p...

Introduction: Neurovascular lesions may cause death or disability. Some of them are operable, but surgical approaches to these lesions are complicated and proper access is crucial. A few numbers of these surgeries occur in every resident education period and their experience for operating these lesions may be quite inadequate. Using new technologies like 3D-restructure of vascular lesion images...

BACKGROUND To analyze the accuracy and inter-observer variability of image-guidance (IG) using 3D or 4D cone-beam CT (CBCT) technology in stereotactic body radiotherapy (SBRT) for lung tumors. MATERIALS AND METHODS Twenty-one consecutive patients treated with image-guided SBRT for primary and secondary lung tumors were basis for this study. A respiration correlated 4D-CT and planning contours...

Introduction Since early ’90 GIS has become a sophisticated system for maintaining and analysing spatial and semantic information on spatial objects. The need for 3D information is rapidly increasing. 2D GIS analysis have shown its limitations in some situations, e.g. noise prediction models (noise spreads out in three dimensions) (Kluijver and Stoter, 2003), water flood models, air pollution m...

SLAM systems are mainly applied for robot navigation while research on feasibility for motion planning with SLAM for tasks like bin-picking, is scarce. Accurate 3D reconstruction of objects and environments is important for planning motion and computing optimal gripper pose to grasp objects. In this work, we propose the methods to analyze the accuracy of a 3D environment reconstructed using a L...