Image coding device and method thereof and image decoding...

Details Image coding device and method thereof and image decoding... Image coding device and method thereof and image decoding...

2011-06-14

2011-06-14

Dang, Duy M (Department: 2624)

Image analysis

Image compression or coding

Pyramid, hierarchy, or tree structure

C382S232000

Reexamination Certificate

active

07961964

ABSTRACT:
A predetermined area of input image data (100) is read and stored into a memory section (1). As soon as data is stored in the data read memory section (1), wavelet conversion filtering is performed on the image area, in the horizontal or vertical direction, by a wavelet conversion section (5). The wavelet conversion section (5) comprises a fixed-point type wavelet conversion section (3) and an integer type wavelet conversion section (4). Data from the data read memory section (1) is switched and controlled by a switching section (2), and supplied to either the fixed-point wavelet conversion section (3) or the integer type wavelet conversion section (4).

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Jiangkang et al., “Transformation of Shannon's Sampling Points into Daubechie's Wavelet Sampling Points”, Signal Processing Preceedings, 1998. ICSP '98, IEEE vol. 1, pp. 305-308, Published on 1998.
Saha et al., “Use of Adaptive integer-to-integer wavelet transforms in lossless ing coding”, Circuit and Systems, 2001. ISCAS 2001, IEEE, vol. 2, pp. 393-396, Published on May 2001.

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