Image analysis – Image compression or coding – Pyramid – hierarchy – or tree structure
Reexamination Certificate
2011-03-29
2011-03-29
Dang, Duy M (Department: 2624)
Image analysis
Image compression or coding
Pyramid, hierarchy, or tree structure
Reexamination Certificate
active
07916961
ABSTRACT:
A rate control unit performs data truncation on a code sequence having been sorted and bit shifted as shown in FIG.10so that a desired noise reduction effect is achieved. The data truncation occurs in sequence from the rightmost bit. For example, in FIG.10, data is truncated from data of bit0in a subband VHL4downwardly in sequence through data of bit0in a subband YHH5, and so on. If the desired noise reduction effect can be achieved by truncation of up to bit data in the subband YHH1, data in those subbands in a dotted area in FIG.10will be truncated. If the desired noise reduction effect cannot be achieved by truncation of up to bit data in the subband YHH1, data will then be truncated from data of bit0in a subband VLL4downwardly in sequence.
REFERENCES:
patent: 6891973 (2005-05-01), Atsumi et al.
patent: 7127111 (2006-10-01), Fukuhara et al.
patent: 7174046 (2007-02-01), Okada
patent: 2005/0141773 (2005-06-01), Mizuno
patent: 2001-45484 (2001-02-01), None
U.S. Appl. No. 11/515,718, filed Sep. 6, 2006, Mizuno.
Dang Duy M
Megachips Corporation
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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