Image analysis – Image compression or coding – Pyramid – hierarchy – or tree structure
Reexamination Certificate
2005-09-14
2009-10-20
Dang, Duy M (Department: 2624)
Image analysis
Image compression or coding
Pyramid, hierarchy, or tree structure
C382S232000
Reexamination Certificate
active
07606434
ABSTRACT:
An apparatus and a method for forming a data structure that improves error resilience when applied to the coding of hierarchical subband decomposed coefficients, e.g., wavelet transform coefficients. The texture unit is defined as comprising only those AC transform coefficients that are located in one or more slices in a single subband. The texture unit is defined as comprising only those AC transform coefficients that are across “n” subbands, where “n” is smaller number than the total number of “N” levels of decomposition. A texture unit can also be defined as comprising only those bits from the DC transform coefficients that form a single bitplane.
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Chai Bing-Bing
Sodagar Iraj
Dang Duy M
Fortney Andrew D.
Media Tek Inc.
Sharp Kabushiki Kaisha
The Law Offices of Andrew D. Fortney
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