发明名称 |
WASSERZEICHEN VON SIGNALEN |
摘要 |
<p>A method of processing an information signal comprising: applying a signal modification process to an information signal resulting in a processed signal, said signal modification process being controlled by at least one control parameter; comparing the processed signal with the information signal to determine a measure of perceptual quality of the processed signal; and adjusting said at least one control parameter in response to the determined measure of perceptual quality. The method is advantageously used in watermarking and compression systems, that use a model of the Human Auditory or Visual System to control the watermark embedding depth or the compression ratio, and that often fail to maintain a constant signal quality because they ignore other artifacts than the mask-to-noise ratio.</p> |
申请公布号 |
AT391987(T) |
申请公布日期 |
2008.04.15 |
申请号 |
AT20040703454T |
申请日期 |
2004.01.20 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
VAN DER VEEN, MINNE;LEMMA, AWEKE;APREA, JAVIER;BRUEKERS, ALPHONS |
分类号 |
G06T1/00;G10L13/033;G10L19/018;G10L19/035;G10L25/69;G11B20/00;G11B20/10;H04N7/24 |
主分类号 |
G06T1/00 |
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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