Detection device and detection method for 32-pull
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专利名称：Detection device and detection method for
32-pull down sequence
发明人：Hideki Matsuoka
申请号：US11787649
申请日：20070417
公开号：US08120702B2
公开日：
20120221
专利内容由知识产权出版社提供
专利附图：
摘要：60 fields of an interlace image (telecine image) after 32-pull down is input. The input images stored in field memories are read, and the grayscale difference (difference absolute value) between frames is computed by a pixel difference absolute value
subtractor. The difference absolute value and five threshold values are compared by an absolute value difference comparator. A cumulative adder stores one field of comparison result. A flag information creation processing unit creates a flag information table for indicating whether a current field is a repeat field with noise or not, based on the information from the cumulative adder. A repeat field judgment unit detects a 32-pull down sequence from the flag information table, and detects whether the current field is a repeat field with noise or not, and so forth. A 32-transform control unit performs IP (Interlace to Progressive) conversion based on the detected repeat fields.
申请人：Hideki Matsuoka
地址：Kawasaki JP
国籍：JP
代理机构：Katten Muchin Rosenman LLP
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