Image analysis – Image compression or coding – Pyramid – hierarchy – or tree structure
Reexamination Certificate
2005-03-15
2005-03-15
Do, Anh Hong (Department: 2624)
Image analysis
Image compression or coding
Pyramid, hierarchy, or tree structure
C382S135000, C382S248000
Reexamination Certificate
active
06868187
ABSTRACT:
Image data is separated into two components having elements arranged in a checkered pattern. A dummy setting component is obtained of the signal value occurring at the hole position of the first component, which is dummy-set corresponding to the direction of signal change of the first component. The dummy setting component is subtracted from the second component to obtain a difference component, which is the high-frequency component. By performing weighted addition on the signal value occurring at the hole position of component1and the signal value of the difference component, an addition dummy setting is obtained, and is then added to component2to obtain the low-frequency component. By repeatedly subjecting the low frequency-component to this processing, the image data can be transformed into the high-frequency components and the low-frequency components of a plurality of frequency bands.
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Birch & Stewart Kolasch & Birch, LLP
Do Anh Hong
Fuji Photo Film Co. , Ltd.
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