Image analysis – Image compression or coding – Pyramid – hierarchy – or tree structure
Reexamination Certificate
2005-09-13
2005-09-13
Do, Anh Hong (Department: 2624)
Image analysis
Image compression or coding
Pyramid, hierarchy, or tree structure
C239S248000
Reexamination Certificate
active
06944349
ABSTRACT:
In a digital filtering device adopting wavelet transformation, a memory occupancy level of processed data is decreased. An image is divided into a plurality of first blocks each consisting of W pixels by H pixels. Wavelet transformation is performed on each of the first blocks in order to produce sub-frequency band blocks LL, LH, HL, an HH. Sub-frequency band blocks LL produced from the first blocks are grouped in order to produce second blocks having the same size as the first blocks. Wavelet transformation is performed again on the second blocks.
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Andrew James Philip
Majani Eric
Onno Patrice
Do Anh Hong
Fitzpatrick ,Cella, Harper & Scinto
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