发明申请
- 专利标题: Apparatus and method for encoding and decoding image data
- 专利标题(中): 用于对图像数据进行编码和解码的装置和方法
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申请号: US11482036申请日: 2006-07-07
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公开(公告)号: US20070014481A1公开(公告)日: 2007-01-18
- 发明人: Wooshik Kim , Hyun Kim , Daesung Cho , Dmitri Birinov
- 申请人: Wooshik Kim , Hyun Kim , Daesung Cho , Dmitri Birinov
- 申请人地址: KR Suwon-si
- 专利权人: SAMSUNG ELECTRONICS CO., LTD.
- 当前专利权人: SAMSUNG ELECTRONICS CO., LTD.
- 当前专利权人地址: KR Suwon-si
- 优先权: KR10-2005-0062933 20050712
- 主分类号: G06K9/00
- IPC分类号: G06K9/00 ; G06K9/36
摘要:
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.