发明名称 |
METHOD FOR SELECTING JPEG QUANTIZATION FACTOR |
摘要 |
A sequence of angiographic images is made up of frames of data. A sample sequence, made up of a number of such frames, is compressed using a lower value of the quantization factor and the resulting average compression ratio is determined. The same sample sequence is also compressed using a higher value for the quantization factor and another average compression ratio is determined. The value of the quantization factor corresponding to a desired average compression ratio of the entire sequence can then be determined by linear interpolation. |
申请公布号 |
WO9717675(A1) |
申请公布日期 |
1997.05.15 |
申请号 |
WO1996US16398 |
申请日期 |
1996.10.11 |
申请人 |
SIEMENS MEDICAL SYSTEMS, INC. |
发明人 |
HUA, PING |
分类号 |
A61B5/00;G06T9/00;H04N7/26;H04N7/30;(IPC1-7):G06T9/00 |
主分类号 |
A61B5/00 |
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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