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Internet distributed image information system.

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Title: Internet distributed image information system.
Authors: Guédon, J.P., Parrein, B., Normand, N.
Source: Integrated Computer-Aided Engineering. 2001, Vol. 8 Issue 3, p205. 10p. 5 Diagrams, 1 Chart.
Subjects: Computer network protocols, Distributed operating systems (Computers)
Abstract: A new IP multimedia distributed system is presented. The two main functionalities are error-resilience for image and video transmission and storage and distribution of partial information among several servers in order to use different internet routes. The system is based on a redundant transform called the Mojette transform that projects the original information into different pieces. Our group has developed this transform for the last five years. The main theoretical results of the Mojette transform are recalled for the 2-D and 3-D cases. The transform is then used to break a data volume into several pieces and to transmit or store them with several levels of redundancy such that a receiver is able to reconstruct the original message by a subset of pieces despite erasures. The second main feature is to provide insufficient pieces onto a single server to avoid a network information theft whereas being able to use the redundancy located on other servers to rebuild the information after the network destruction of a server. The characteristics of this distributed system are exemplified. The relationships with quality of service and multiple description theory are analyzed and exemplified with the telemedecine case. Finally, a multiple description scheme with prioritized flows is defined and implemented. The Mojette operators and the resultant multimedia distributed architecture is valid both for any multimedia signals (image, video, voice) to be encoded and those already encoded and available as bit streams. [ABSTRACT FROM AUTHOR]
Copyright of Integrated Computer-Aided Engineering is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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  Data: <searchLink fieldCode="JN" term="%22Integrated+Computer-Aided+Engineering%22">Integrated Computer-Aided Engineering</searchLink>. 2001, Vol. 8 Issue 3, p205. 10p. 5 Diagrams, 1 Chart.
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  Data: A new IP multimedia distributed system is presented. The two main functionalities are error-resilience for image and video transmission and storage and distribution of partial information among several servers in order to use different internet routes. The system is based on a redundant transform called the Mojette transform that projects the original information into different pieces. Our group has developed this transform for the last five years. The main theoretical results of the Mojette transform are recalled for the 2-D and 3-D cases. The transform is then used to break a data volume into several pieces and to transmit or store them with several levels of redundancy such that a receiver is able to reconstruct the original message by a subset of pieces despite erasures. The second main feature is to provide insufficient pieces onto a single server to avoid a network information theft whereas being able to use the redundancy located on other servers to rebuild the information after the network destruction of a server. The characteristics of this distributed system are exemplified. The relationships with quality of service and multiple description theory are analyzed and exemplified with the telemedecine case. Finally, a multiple description scheme with prioritized flows is defined and implemented. The Mojette operators and the resultant multimedia distributed architecture is valid both for any multimedia signals (image, video, voice) to be encoded and those already encoded and available as bit streams. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Integrated Computer-Aided Engineering is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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