A Data Distributed Parallel Algorithm For Ray Traced Volume Rendering

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A Data Distributed Parallel Algorithm For Ray Traced Volume Rendering

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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-06-28

A Data Distributed Parallel Algorithm For Ray Traced Volume Rendering written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-28 with categories.

This paper presents a divide-and-conquer ray-traced volume rendering algorithm and a parallel image compositing method, along with their implementation and performance on the Connection Machine CM-5, and networked workstations. This algorithm distributes both the data and the computations to individual processing units to achieve fast, high-quality rendering of high-resolution data. The volume data, once distributed, is left intact. The processing nodes perform local ray tracing of their subvolume concurrently. No communication between processing units is needed during this locally ray-tracing process. A subimage is generated by each processing unit and the final image is obtained by compositing subimages in the proper order, which can be determined a priori. Test results on both the CM-5 and a group of networked workstations demonstrate the practicality of our rendering algorithm and compositing method. Ma, Kwan-Liu and Painter, James S. and Hansen, Charles D. and Krogh, Michael F. Unspecified Center NAS1-19480; RTOP 505-90-52-01...

A Data Distributed Parallel Algorithm For Ray Traced Volume Rendering

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Author : Institute for Computer Applications in Science and Engineering
language : en
Publisher:
Release Date : 1993

A Data Distributed Parallel Algorithm For Ray Traced Volume Rendering written by Institute for Computer Applications in Science and Engineering and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Computer networks categories.

Abstract: "This paper presents a divide-and-conquer ray-traced volume rendering algorithm and a parallel image compositing method, along with their implementation and performance on the Connection Machine CM-5, and networked workstations. This algoritm distributes both the data and the computations to individual processing units to achieve fast, high- quality rendering of high-resolution data. The volume data, once distributed, is left intact. The processing nodes perform local raytracing of their subvolume concurrently. No communication between processing units is needed during this locally ray-tracing process. A subimage is generated by each processing unit and the final image is obtained by compositing subimages in the proper order, which can be determined a priori. Test results on both the CM-5 and a group of networked workstations demonstrate the practicality of our rendering algorithm and compositing method."

A Data Distributed Parallel Algorithm For Ray Traced Volume Rendering

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Author :
language : en
Publisher:
Release Date : 1993

A Data Distributed Parallel Algorithm For Ray Traced Volume Rendering written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with categories.

This paper presents a divide-and-conquer ray-traced volume rendering algorithm and its implementation on networked workstations and a massively parallel computer, the Connection Machine CM-5. This algorithm distributes the data and the computational load to individual processing units to achieve fast, high-quality rendering of high-resolution data, even when only a modest amount of memory is available on each machine. The volume data, once distributed, is left intact. The processing nodes perform local ray-tracing of their subvolume concurrently. No communication between processing units is needed during this locally ray-tracing process. A subimage is generated by each processing unit and the final image is obtained by compositing subimages in the proper order, which can be determined a priori. Implementations and tests on a group of networked workstations and on the Thinking Machines CM-5 demonstrate the practicality of our algorithm and expose different performance tuning issues for each platform. We use data sets from medical imaging and computational fluid dynamics simulations in the study of this algorithm.

Icase

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Author : Kwan-Liu Ma
language : en
Publisher:
Release Date : 1993

Icase written by Kwan-Liu Ma and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with categories.

Parallel Rendering Symposium

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Author :
language : en
Publisher:
Release Date : 1995

Parallel Rendering Symposium written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Algorithms categories.

Scientific And Technical Aerospace Reports

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Author :
language : en
Publisher:
Release Date : 1994

Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Aeronautics categories.

Frontiers 95 The Fifth Symposium On The Frontiers Of Massively Parallel Computation

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Author :
language : en
Publisher: Institute of Electrical & Electronics Engineers(IEEE)
Release Date : 1995

Frontiers 95 The Fifth Symposium On The Frontiers Of Massively Parallel Computation written by and has been published by Institute of Electrical & Electronics Engineers(IEEE) this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Computers categories.

The proceedings of the February 1995 symposium, sponsored by the IEEE Computer Society Technical Committee on Computer Architecture, comprise 56 refereed technical papers featuring current research in parallel software, architectures, applications, and algorithms. Also included is a minisymposium on

A Scalable Parallel Cell Projection Volume Rendering Algorithm For Three Dimensional Unstructured Data

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Author : Kwan-Liu Ma
language : en
Publisher:
Release Date : 1997

A Scalable Parallel Cell Projection Volume Rendering Algorithm For Three Dimensional Unstructured Data written by Kwan-Liu Ma and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Aerodynamics categories.

Abstract: "Visualizing three-dimensional unstructured data from aerodynamics calculations is challenging because the associated meshes are typically large in size and irregular in both shape and resolution. The goal of this research is to develop a fast, efficient parallel volume rendering algorithm for massively parallel distributed-memory supercomputers consisting of a large number of very powerful processors. We use cell-projection instead of ray-casting to provide maximum flexibility in the data distribution and rendering steps. Effective static load balancing is achieved with a round robin distribution of data cells among the processors. A spatial partitioning tree is used to guide the rendering, optimize the image compositing step, and reduce memory consumption. Communication cost is reduced by buffering messages and by overlapping communication with rendering calculations as much as possible. Tests on the IBM SP2 demonstrate that these strategies provide high rendering rates and good scalability. For a dataset containing half a million tetrahedral cells, we achieve two frames per second for a 400x400-pixel image using 128 processors."

Proceedings Of The 1996 International Conference On Parallel Processing August 12 16 1996

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Author : A. Reeves
language : en
Publisher:
Release Date : 1996

Proceedings Of The 1996 International Conference On Parallel Processing August 12 16 1996 written by A. Reeves and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Parallel processing (Electronic computers) categories.

Parallel And Distributed Processing And Applications

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Author :
language : en
Publisher:
Release Date : 2004

Parallel And Distributed Processing And Applications written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Electronic data processing categories.