Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2007-01-31
2011-10-25
Rao, Andy (Department: 2486)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C375S240260
Reexamination Certificate
active
08045621
ABSTRACT:
An image coding method and apparatus considering human visual characteristics are provided. The image coding method comprises (a) modeling image quality distribution of an input image in units of scenes such that the quality of an image input in units of scenes is gradually lowered from a region of interest to a background region, (b) determining a quantization parameter of each region constituting one scene according to the result of modeling of image quality distribution, (c) quantizing image data in accordance with the quantization parameter, and (d) coding entropy of the quantized image data.
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Cho Dae-sung
Kim Sang-wook
Kim Woo-shik
Lee Shi-hwa
Rao Andy
Samsung Electronics Co,. Ltd.
Staas & Halsey , LLP
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