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    • 9. 发明专利
    • X-ray inspection apparatus
    • JP5336996B2
    • 2013-11-06
    • JP2009241829
    • 2009-10-20
    • 株式会社イシダ
    • 修 廣瀬
    • G01N23/04
    • PROBLEM TO BE SOLVED: To provide an X-ray inspection device assuring the reliability of post-conversion luminance-by-luminance data in cases where the luminance-by-luminance data are converted from those of high gradations into those of low gradations. SOLUTION: A plurality of conversion curves fa to fe stored in a conversion curve storage part 270 are used in a thinning-out process. Based on luminance-by-luminance data LD2, the thinning-out process is done by a weighting changer 260 with a thinning-out rate MR changed between a luminance domain KRT and a luminance domain KR excluding the luminance domain KRT. In cases where data of 12 bits (4096 gradations) are converted into data of 8 bits (256 gradations) for example, the thinning-out process is not done for the luminance domain KRT, or the thinning-out process is done at a low thinning-out rate by the weighting changer 260 while the thinning-out process is done for the luminance domain KR at a high thinning-out rate. COPYRIGHT: (C)2011,JPO&INPIT