Image analysis – Image compression or coding
Reexamination Certificate
2008-07-08
2008-07-08
Mehta, Bhavesh M. (Department: 2624)
Image analysis
Image compression or coding
C375S240000, C348S390100
Reexamination Certificate
active
07397957
ABSTRACT:
Disclosed is a discrete wavelet transform (DWT) unit for encoding and decoding still images based on the energy of each block. The DWT unit includes an energy calculating section for calculating energy of an input image in unit of a block having a predetermined number of pixels, an image decomposing section for performing three-level decomposition of the image of the block by decomposing a band at which a low frequency component is distributed three times, and a coefficient substituting section for substituting 0 (zero) for bands at which a high frequency component is distributed among the three-level decomposed bands.
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Kim Dae-Won
Lee Hyun-seung
Shin Dae-Kyu
Mehta Bhavesh M.
Samsung Electronics Co,. Ltd.
Seth Manav
The Farrell Law Firm PC
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