发明名称 |
IMAGE ENCODER AND ITS METHOD |
摘要 |
<p>An image encoder and its processing method for compression-encoding a dynamic image at a variable encoding rate in the case of an application required to perform real-time processing. A variable bit rate (VBR) control section (22) determines a VBR control quantizing scale VBRq according to a VBR buffer value held in a VBR buffer recording section (21). A constant bit rate (CBR) control section (23) determines a CBR control quantizing scale CBRq according to an inputted maximum bit rate BRmax. A quantizing scale comparing section (25) outputs the CBRq during constant rate encoding and outputs the larger one of the VBRq and CBRq during variable rate encoding. An image compression-encoding section (24) encodes the inputted image signal at a quantizing scale outputted from the quantizing scale comparing section (25) and outputs a bit stream(S20). <IMAGE></p> |
申请公布号 |
EP1091588(A1) |
申请公布日期 |
2001.04.11 |
申请号 |
EP20000917388 |
申请日期 |
2000.04.20 |
申请人 |
SONY CORPORATION |
发明人 |
HIRANAKA, DAISUKE |
分类号 |
H04N19/00;G06T9/00;H04N19/126;H04N19/134;H04N19/146;H04N19/176;H04N19/177;H04N19/423;H04N19/625;H04N19/85;H04N19/91;(IPC1-7):H04N7/30;H04N7/26 |
主分类号 |
H04N19/00 |
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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