发明名称 |
Moving image encoding apparatus |
摘要 |
In a moving image encoding apparatus of this invention, a generated bit amount extracting section (21) counts generated bits of variable-length-encoded data in units of macroblocks, and a reference generated bit count is set in a parameter value control section (22) as an update condition for a parameter value in each block. The boundary value of the parameter value is set in an intra/inter determination section (23) as a criterion for selection of the intra-encoding mode. In the inter-frame encoding mode, the parameter value control section (22) updates the parameter value of a block in which the generated bit count value of encoded data obtained by the generated bit amount extracting section (21) exceeds a reference value. The intra/inter determination section (23) determines that the influence of a data error is large in a block in which the parameter value is continuously updated and exceeds the boundary value, and switches the current mode to the intra-encoding mode to perform refresh operation.
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申请公布号 |
US2002172283(A1) |
申请公布日期 |
2002.11.21 |
申请号 |
US20020148185 |
申请日期 |
2002.06.06 |
申请人 |
KAWAKATSU HIROKAZU;ASANO ATSUSHI |
发明人 |
KAWAKATSU HIROKAZU;ASANO ATSUSHI |
分类号 |
H04N7/30;H04L1/00;H04N7/26;H04N7/32;H04N7/50;(IPC1-7):H04N7/12 |
主分类号 |
H04N7/30 |
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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