发明名称 |
IMAGE ENCODING APPARATUS |
摘要 |
In an image encoding apparatus, conversion data obtained by converting image information onto a frequency region, and corresponding to several frames are parallelly output using a one-frame period delay circuit. The parallelly output conversion data are quantized by a quantization circuit, and a data amount to be obtained when the quantized data are encoded is obtained by a variable-length coding circuit. The data amount information is input to a coefficient operation circuit for determining a quantization step of the next stage. Conversion data quantized according to an output from the coefficient operation circuit are encoded, and the encoded data are output. <IMAGE> |
申请公布号 |
EP0498578(A3) |
申请公布日期 |
1993.09.15 |
申请号 |
EP19920300851 |
申请日期 |
1992.01.31 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
ENARI, MASAHIKO;NAGASAWA, KENICHI;SHIKAKURA, AKIHIRO;KANEKO, YUUSHI;SATAKE, YOSHIFUMI;TAKIZAWA, HIROSHI |
分类号 |
G06T9/00;H04N7/26;H04N7/30;(IPC1-7):H04N7/133 |
主分类号 |
G06T9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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