Title:
ENCODING AND DECODING OF DIGITAL DATA USING CUES DERIVABLE AT A DECODER
Document Type and Number:
WIPO Patent Application WO2004023703
Kind Code:
A3
Abstract:
Encoding digital data by using cues at a decoder (104). An encoder (102) selects an index to indicate a target codeword (112) from the complete space of all codewords to a decoder (104). The index identifies a group or a set of codewords that contain the target codeword. The sets are represented by a bit-length thus achieving compression. Two or more codewords in such a set are separated by a predetermined distance and all such sets of codewords considered together form the complete space of all codewords. The encoder sends syntax information (114), including the index, to specify the decoding. The decoder then uses a set of candidate cues in a comparison operation to determine the target codeword from the indexed set. Processing complexity can be allocated among the encoder, decoder and other possible devices as, for example, in a digital network.
Inventors:
PURI ROHIT (US)
RAMCHANDRAN KANNAN (US)
RAMCHANDRAN KANNAN (US)
Application Number:
PCT/US2003/027750
Publication Date:
August 05, 2004
Filing Date:
September 05, 2003
Export Citation:
Assignee:
UNIV CALIFORNIA (US)
PURI ROHIT (US)
RAMCHANDRAN KANNAN (US)
PURI ROHIT (US)
RAMCHANDRAN KANNAN (US)
International Classes:
H04N7/26; H04N7/36; H04N7/50; H04N7/66; H04N19/94; (IPC1-7): G06K9/36
Foreign References:
| US5740283A | 1998-04-14 |
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