Title:
METHOD OF DETERMINING A CORRUPTION INDICATION OF A SEQUENCE OF ENCODED DATA FRAMES
Document Type and Number:
WIPO Patent Application WO2006054206
Kind Code:
A3
Abstract:
The present invention relates to a method of determining a corruption indication of a sequence (100) of encoded data frames distributed over a network, said data frames being encoded according to a predictive block-based encoding technique. Said method comprises the steps of: - decoding the sequence of encoded data frames so as to obtain a sequence of decoded data frames (200), - building a reliability map (210) including binary values based on the decoding step, a binary value being associated with a decoded data item in such a way that the binary value is equal to a first value (1) if its associated data item has not been decoded due to corruption or if said associated data item is predicted with reference to a reference data item that has not been decoded due to corruption, and to a second value (0) otherwise, - computing a corruption metric based on the binary values.
Inventors:
RAMANZIN YVES (FR)
Application Number:
PCT/IB2005/053688
Publication Date:
July 13, 2006
Filing Date:
November 09, 2005
Export Citation:
Assignee:
KONINKL PHILIPS ELECTRONICS NV (NL)
RAMANZIN YVES (FR)
RAMANZIN YVES (FR)
International Classes:
H04N7/32; H04N19/895
Domestic Patent References:
| WO2004066096A2 | 2004-08-05 |
Foreign References:
| US5212549A | 1993-05-18 |
Other References:
See also references of EP 1815692A2
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