发明名称 |
Method and device for converting number of frames of image signals |
摘要 |
The present invention provides a movement correction frame count transformation apparatus for carrying out frame count transformation processing on a picture signal. In the apparatus, an input picture signal (S1) of interlaced scanning is converted into a signal (S2) of sequential scanning by an IP conversion unit (1). A movement detecting unit (3) detects movement detection signals (MD1 and MD2). A block unit movement vector searching unit (4) detects a block unit movement vector (BMV) by carrying out block matching processing. A movement vector correcting unit (5) carries out miniblock division processing to generate a movement vector (BV) if a movement correction error is equal to or greater than a threshold value. A pixel unit movement vector generating unit (6) generates a movement vector with a smallest error component between a frame signal of a current frame and a frame signal of an immediately preceding frame as a movement vector of a pixel. An MC interpolation frame signal generating unit (7) generates an interpolation frame in movement correction processing carried out by a median filter in order to produce a signal (S4) of sequential scanning as a result of frame count transformation based on movement correction.
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申请公布号 |
US6611294(B1) |
申请公布日期 |
2003.08.26 |
申请号 |
US20000720327 |
申请日期 |
2000.12.22 |
申请人 |
HITACHI, LTD. |
发明人 |
HIRANO YASUHIRO;ISHIKURA KAZUO;SUGIYAMA MASATO;NAKAJIMA MITSUO;TSURU YASUTAKA;MATONO TAKAAKI;TAKATA HARUKI;KANEHACHI TAKASHI |
分类号 |
H04N5/14;H04N5/44;H04N7/01;(IPC1-7):H04N7/01 |
主分类号 |
H04N5/14 |
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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