Apparatus and method for encoding and decoding image data...

Details Apparatus and method for encoding and decoding image data... Apparatus and method for encoding and decoding image data...

2011-08-09

2011-08-09

Perungavoor, Sath V (Department: 2624)

Image analysis

Image compression or coding

C382S239000, C382S246000, C382S251000, C375S240000, C375S240020, C375S240030, C375S240120, C375S240180

Reexamination Certificate

active

07995847

ABSTRACT:
An apparatus and method for encoding and decoding image data. The image data encoding apparatus includes: a transformer transforming pixel values of an image in a time domain into pixel values in a frequency domain; a quantization coefficient determiner determining a quantization coefficient proportional to a number of bits per pixel of the image; a quantization unit quantizing the pixel values transformed by the transformer based on the quantization coefficient determined by the quantization coefficient determiner; and an entropy encoder generating a bitstream of the quantized pixel values.

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