Browse Prior Art Database

Scheme to Provide Access to the Power Visualization System in a Collaborative Environment

IP.com Disclosure Number: IPCOM000105605D
Original Publication Date: 1993-Aug-01
Included in the Prior Art Database: 2005-Mar-20
Document File: 4 page(s) / 102K

Publishing Venue

IBM

Related People

Chen, MS: AUTHOR [+2]

Abstract

Disclosed is a scheme which enables access to a scientific visualization system such as the POWER visualization system in a collaborative environment. A typical use of this scheme would be to allow a group of researchers in different locations to access and discuss the results produced by the visualization system.

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This is the abbreviated version, containing approximately 52% of the total text.

Scheme to Provide Access to the Power Visualization System in a Collaborative Environment

      Disclosed is a scheme which enables access to a scientific
visualization system such as the POWER visualization system in a
collaborative environment.  A typical use of this scheme would be to
allow a group of researchers in different locations to access and
discuss the results produced by the visualization system.

      Visualization Systems (VS) such as the POWER Visualization
System are a very important tool for researchers in a wide range of
disciplines.  This visualization allows scientists to sift through
vast amounts of complex data and gain a better understanding of the
underlying process.  It is therefore important to make these systems
accessible to a large audience.

      However, the large investment required to maintain a
visualization system (which is a kind of graphics supercomputer)
implies that these machines have to be considered as a shared
resource.  One of the difficulties of making the VS accessible to
users at remote sites is the large volume of data generated by the
VS.  This disclosure presents a scheme which makes it possible for
remote users to access the VS and obtain the results of the
visualization in real time.  This scheme also makes it possible for
researchers at different locations to access and control the VS in a
collaborative mode and discuss the results of the visualization.  A
further advantage of this scheme is that it can be implemented easily
with current technology.

The invention addresses two problems:

1.  Transmission of the visualization output to remote users, and

2.  Control of the visualization process by the remote users.

The main components of the invention are illustrated in the Figure
and are described below.  The illustration is based on the IBM POWER
Visualization System (PVS), but it can be generalized to other
similar systems.

      The output of the PVS is available in the PVS frame buffer.
This output is converted into an analog video signal which can
processed as part of a video conferencing system.  The conversion is
accomplished using a "scan converter" which accepts RGB analog video
as input and produces an NTSC video signal.  The scan converter
allows the user to control the content of the NTSC signal using an
RS-232 interface.  The user can pan across the PVS frame b...