12/30/2023 0 Comments Paraview depth peelerOcclusion is an issue in volumetric visualization as it prevents direct visualization of the region of interest. We support our claims with findings from a qualitative user study conducted with 12 reservoir engineers, which brought us insight into our techniques, as well as a discussion on the potential of tabletop-based visualization solutions for the domain of reservoir engineering. In this paper, we present a collection of 3D reservoir visualization techniques on tabletop interfaces applied to the domain of reservoir engineering, and argue that these provide greater insight into reservoir models. Tabletops have great potential in providing powerful interactive representation to reservoir engineers, as well as enhancing the flexibility, immediacy and overall capabilities of their analysis, and consequently bringing more confidence into the decision making process. Therefore, they are in constant pursue of better virtual representations of the reservoir models, improved user awareness of their embedded data, and more intuitive ways to explore them, all ultimately leading to more informed decision making. Reservoir engineers rely on virtual representations of oil reservoirs to make crucial decisions relating, for example, to the modeling and prediction of fluid behavior, or to the optimal locations for drilling wells. We review a collection of techniques for animating digital characters in SORs, focusing on recent developments in volume animation. We examine a collection of techniques that are designed to transform the geometry shape of deformable objects in sampled representations and pay particular attention to their deployment in surgical simulation. We consider a collection of elementary operations for manipulating SORs, which can serve as building blocks of deformation and animation techniques. In this state of the art report, we survey a wide range of techniques that have been developed for manipulating, deforming and animating SORs. Such methods can enable computer graphics and computer animation to benefit enormously from the advances of digital imaging technology. Hence it poses a significant scientific and technical challenge to develop deformation and animation methods that operate upon SORs. Unlike many commonly used data representations in computer graphics, SORs lack in geometrical, topological and semantic information, which is much needed for controlling deformation and animation. Examples of SORs include images, videos, volume datasets and point datasets. Our approach is directly applicable in medical and biological illustration, and we demonstrate how it works as an interactive tool for focus+context visualization, as well as a generic technique for volume graphics.Ī sampled object representation (SOR) defines a graphical model using data obtained from a sampling process, which takes a collection of samples at discrete positions in space in order to capture certain geometrical and physical properties of one or more objects of interest. We describe a GPU-based implementation to achieve real-time performance of the techniques and a collection of manipulation operators including peelers, retractors, pliers and dilators which are adaptations of the metaphors and tools used in surgical procedures and medical illustrations. We also present a mechanism for defining features using texture volumes, and methods for computing correct normals for the deformed volume in respect to different alignments. We propose two new feature-aligned techniques, namely surface alignment and segment alignment, and compare them with the axis-aligned techniques which was reported in previous work on volume manipulation. It is partly inspired by medical illustrations, where it is common to depict cuts and deformation in order to provide a better understanding of anatomical and biological structures or surgical processes, and partly motivated by the need for a real-time solution that supports the specification and visualization of such illustrative manipulation. In this paper we describe a GPU-based technique for creating illustrative visualization through interactive manipulation of volumetric models.
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