Image analysis – Image compression or coding – Transform coding
Patent
1997-12-31
2000-10-31
Couso, Jose L.
Image analysis
Image compression or coding
Transform coding
382248, G06K 936
Patent
active
061414573
ABSTRACT:
A method and an apparatus for processing a high definition image using both an inverse discrete cosine transform (IDCT) and an inverse discrete wavelet transform (IDWT) to provide a relatively lower definition image is provided. Image data encoded with a discrete cosine transform (DCT) is decoded using both an IDCT and an IDWT to generate IDCT processed image data and IDWT reduced image data. The IDCT processed image data and the IDWT reduced image data are combined to generate reduced image data that has a relatively lower definition than the image data and a relatively higher definition than the IDWT reduced image data.
REFERENCES:
Ding, Jinghua. "Three-dimensional multiresolution video compression strategy for using human visual characteristics." Communications, 1997. ICC'97 Montreal, towards the Knowledge Millennium. 1997, vol. 3, pp. 1669-1673.
Chaney Jack
Jahanghir Musa
Kaufman Michael A.
Aiello, Esq. Jeffrey P.
Cage Shawn B.
Couso Jose L.
Samsung Electronics Co,. Ltd.
Sherman, Esq. Kenneth L.
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