Image processing apparatus and method

Details Image processing apparatus and method Image processing apparatus and method

2006-05-30

2009-11-03

Alavi, Amir (Department: 2624)

Image analysis

Image compression or coding

Including details of decompression

C382S246000, C341S050000

Reexamination Certificate

active

07613349

ABSTRACT:
An image processing method and apparatus capable of decoding and reducing image data encoded with an orthogonal transformation and a variable length decoding in high speed without degrading the accuracy of the reduced image data. In the method and apparatus, the image data are decoded by a variable length decoding and an inverse orthogonal transformation, and reduced to a predetermined target resolution. The image data are decoded by the variable length decoding and resolution of the decoded image data is obtained. Then, the obtained resolution is compared with the target resolution to select the low frequency components to be used for the inverse orthogonal transformation based on the comparison result. Thereafter, an optimum reduction method is selected based on the comparison result, and the decoded image data are reduced by the selected reduction method.

REFERENCES:
patent: 5467086 (1995-11-01), Jeong
patent: 5754699 (1998-05-01), Sugahara
patent: 5832128 (1998-11-01), Suzuki
patent: 5883678 (1999-03-01), Yamaguchi et al.
patent: 5901250 (1999-05-01), Ohara
patent: 6005623 (1999-12-01), Takahashi et al.
patent: 2004/0105119 (2004-06-01), Nonaka
patent: 2006/0039478 (2006-02-01), Nonaka
patent: 2006/0267809 (2006-11-01), Ogasawara et al.
patent: 2003-032482 (2003-01-01), None

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