Title:
知覚的に無損失の画像をもたらす2次元離散ウェーブレット変換に基づくカラー画像の圧縮
Document Type and Number:
Japanese Patent JP4559622
Kind Code:
B2
Abstract:
What is disclosed is a method that includes splitting raw image data into a plurality of channels including color plane difference channels, and then compressing separately each of these channels using a two-dimensional discrete wavelet transform, the compression utilizing quantization, whereby the recovery of the compressed channel data yielding a perceptually lossless image. The method and apparatus operates on images directly in their Bayer pattern form. Quantization thresholds are defined for the quantizing which may vary depending upon the channel and DWT sub-band being processed.
Inventors:
Acharya, Tink
Callum, Lina Jay
Marino, Francisco Maria
Callum, Lina Jay
Marino, Francisco Maria
Application Number:
JP2000550279A
Publication Date:
October 13, 2010
Filing Date:
May 13, 1999
Export Citation:
Assignee:
INTEL CORPORATION
International Classes:
H04N7/32; H04N11/04; G06T9/00; H04N1/41; H04N1/64; H04N7/26; H04N7/30
Domestic Patent References:
| JP9037202A | ||||
| JP8186816A | ||||
| JP1141495A | ||||
| JP60096963A | ||||
| JP10112866A |
Attorney, Agent or Firm:
Masaki Yamakawa