HDTV up converter

专利名称：HDTV up converter

发明人：KIEU CONG TOAI,LE DINH CHON

TAM,POIRIER DANIEL

申请号：US8947298申请日：19980602公开号：US6181382B1公开日：20010130

摘要：An electronic apparatus for converting a standard video signal having 59.94fields per second into an HDTV video signal having 60.00 fields per second, by adding anumber of video fields into each sequence of 1000 video fields. The apparatus detectsthe best moment for adding the new video field, so that the human eye does notperceive an abrupt change in the video image, by detecting the best motion conditionswhich occurs either when the image motion is high or very low. For adding the new videofield, the apparatus uses an interpolation technique for creating two interpolated videofields which are inserted in place of one existing video field which is deleted. The

apparatus also comprises a de-interlacer module for deinterlacing the 60 Hz video image,by using an advanced interpolation technique for calculating the missing video lines. Theproposed technique involves directional interpolations of the missing lines pixels invarious directions and selection of the best interpolation direction for the creation ofeach pixel of the missing video lines. The corresponding de-interlacer apparatuscomprises a novel edge direction detector which performs the mentionnedinterpolations in all interpolating directions and then selects the best direction forperforming the interpolation for each interpolated pixel, based on the quality of the

performed interpolations.

申请人：MIRANDA TECHNOLOGIES INC.

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