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 (7-1 Shiba 5-chome, Minato-k, Tokyo 01, 1088001, JP)
Application Number:
JP2007/062086
Publication Date:
December 27, 2007
Filing Date:
June 15, 2007
Export Citation:
Assignee:
NEC CORPORATION (7-1 Shiba 5-chome, Minato-ku Tokyo, 01, 1088001, JP)
日本電気株式会社 (〒01 東京都港区芝五丁目７番１号 Tokyo, 1088001, JP)
日本電気株式会社 (〒01 東京都港区芝五丁目７番１号 Tokyo, 1088001, JP)
International Classes:
H04N7/32; H04N7/32
Attorney, Agent or Firm:
UDAKA, Katsuki (No2 Azuma Bldg. 5fl, 14 Kandasakumacho 1-chome,Chiyoda-k, Tokyo 25, 1010025, JP)
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