Optimal Erasure Protection Assignment for Scalable Data: Protecting Scalably Compressed Images and Videos Against Erasure over Packet-based Networks [Paperback]

Johnson Thie (Author)

Book Description

Publication Date: November 10, 2009 | ISBN-10: 3838316215 | ISBN-13: 978-3838316215

This research is concerned with the delivery of scalably compressed data over erasure channels. Recent works proposed several strategies for assigning optimal code redundancies to elements of scalable data, which form a linear structure of dependency, under the assumption that all source elements are encoded onto a common group of network packets. Given large data and small network packets, such schemes require very long channel codes with high computational complexity. In networks with high loss, small packets are more desirable than long packets. A strategy for optimally assigning elements of the scalable data to clusters of packets according to their dependency structure, subject to constraints on packet size and code complexity is proposed. Given a packet cluster arrangement, the scheme then assigns optimal code redundancies to the source elements, subject to a constraint on transmission length. Then the scheme is modified to accommodate limited retransmission of lost data. An optimization algorithm determines the transmission and level of protection for each source element, using information about the success of earlier transmission.

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About the Author

Dr Johnson Thie received BE, MBiomedE and PhD degrees from the University of New South Wales, Australia. He developed algorithms to detect emotions, conscious intentions and facial expressions from EEG (brainwaves) in Emotiv Systems. Currently Dr Thie is a research fellow in the Australian School of Advanced Medicine in Macquarie University.

Product Details

• Paperback: 164 pages
• Publisher: LAP Lambert Academic Publishing (November 10, 2009)
• Language: English
• ISBN-10: 3838316215
• ISBN-13: 978-3838316215
• Product Dimensions: 8.7 x 5.9 x 0.4 inches
• Shipping Weight: 10.2 ounces (View shipping rates and policies)

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