Image analysis – Image compression or coding – Lossless compression
Reexamination Certificate
2008-07-31
2010-12-28
Le, Vu (Department: 2624)
Image analysis
Image compression or coding
Lossless compression
Reexamination Certificate
active
07860328
ABSTRACT:
A dividing unit divides respective symbol sequences of input data applied with zigzag scan and a run-length process into a plurality of subsets having similar frequencies of occurrence, depending on a difference in frequencies of occurrence. A table creating unit scans each subset and creates a Huffman coding table for each subset. A coding unit executes a process for performing Huffman coding on each subset by using the Huffman coding table created for the subset, for all of the subsets in the plurality of subsets.
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International Search Report for PCT/JP2008/002065, mailed Nov. 4, 2008.
Ishizaki Masakatsu
Koide Tetsushi
Kumaki Takeshi
Mattausch Hans Juergen
Foley & Lardner LLP
Hiroshima University
Le Vu
Wang Claire
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