发明名称 |
Apparatus and method for boundary detection in vector sequences and edge detection in color image signals |
摘要 |
There is disclosed an apparatus and method for boundary detection in vector sequences and edge detection in color image signals. A boundary detection controller analyzes a vector sequence that represents a signal. A frequency dependent function is used to calculate a modified first order difference (MFD) of the vector act sequence, first as a vector quantity, then as a scalar quantity. A local maximum of the MFD scalar quantity that is greater than a predetermined threshold value identifies a boundary location. The boundary detection controller also analyzes luminance and chrominance portions of a color image signal to locate luminance edges and chrominance edges in a color image.
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申请公布号 |
US2002131638(A1) |
申请公布日期 |
2002.09.19 |
申请号 |
US20010004473 |
申请日期 |
2001.11.02 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
HE HAIYAN;JANSSEN JOHAN |
分类号 |
G06T7/60;G06T5/00;(IPC1-7):G06K9/00;G06K9/48;G06K9/34 |
主分类号 |
G06T7/60 |
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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