发明名称 DIGITAL DATA FALSE ALTERATION DETECTION PROGRAM AND DIGITAL DATA FALSE ALTERATION DETECTION APPARATUS
摘要 A digital data false alteration detection program causes a computer to execute (a) a step (S1) of dividing digital data into a plurality of smaller block data,(b) a step (S2) of extracting noise inherent to a digital data acquisition device for each of the small block data,(c) a step (S3) of calculating correlation of the noise between adjacent small block data, and (d) a step (S4) of detecting small block data having noise correlation lower than a level predetermined for the surrounding small block data, as falsely altered data.
申请公布号 WO03049422(A1) 申请公布日期 2003.06.12
申请号 WO2002JP12626 申请日期 2002.12.03
申请人 FUSO PRECISION CO., LTD.;NAIGAI PROCESS CO., LTD.;TAKEDA, NAOTO;TANIGUCHI, MASAMICHI;TANIGUCHI, KUNIO;YAMAMOTO, KIYOTAKA 发明人 TAKEDA, NAOTO;TANIGUCHI, MASAMICHI;TANIGUCHI, KUNIO;YAMAMOTO, KIYOTAKA
分类号 H04N1/40;G06T7/00;H04L9/32;H04N1/387 主分类号 H04N1/40
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