Title:
DYNAMIC IMAGE DECODING DEVICE, DECODED IMAGE RECORDING DEVICE, AND THEIR METHOD AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2007/148619
Kind Code:
A1
Abstract:
A dynamic image decoding device includes: a reference degree weighting reduction unit
(102) and a reference degree weighting compression unit (106) where easiness for
referencing a pixel position in a frame from a pixel position referenced by a compressed
encoding method as an object of a decoding device is set. The reference degree
weighting reduction unit (102) decides an LPF coefficient so that an image feature
after enlargement holds an image feature before reduction for a pixel which can
be easily referenced and performs control that the pixel will not be thinned when
reduction is performed. The reference degree weighting compression unit (106)
compresses a pixel which is easily referenced by performing control to increase
the number of allocation bits of a quantization representative value (the number
of quantization representative value).
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Inventors:
TAJIME JUNJI (JP)
Application Number:
PCT/JP2007/062086
Publication Date:
December 27, 2007
Filing Date:
June 15, 2007
Export Citation:
Assignee:
NEC CORP (JP)
TAJIME JUNJI (JP)
TAJIME JUNJI (JP)
International Classes:
H04N19/50; H04N19/132; H04N19/136; H04N19/157; H04N19/172; H04N19/189; H04N19/423; H04N19/426; H04N19/44; H04N19/46; H04N19/503; H04N19/51; H04N19/59; H04N19/593; H04N19/61; H04N19/625; H04N19/70; H04N19/80; H04N19/82; H04N19/91
Domestic Patent References:
| WO2007091588A1 | 2007-08-16 |
Foreign References:
| JPH1066081A | 1998-03-06 | |||
| JPH11298892A | 1999-10-29 | |||
| JP2002514867A | 2002-05-21 | |||
| JPH11146399A | 1999-05-28 | |||
| JPH08116539A | 1996-05-07 | |||
| JPH09247673A | 1997-09-19 | |||
| JP2002016913A | 2002-01-18 | |||
| JP2001320712A | 2001-11-16 |
Attorney, Agent or Firm:
UDAKA, Katsuki (14 Kandasakumacho 1-chome,Chiyoda-k, Tokyo 25, JP)
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