发明名称 PARTIAL ENCRYPTION USING VARIABLE BLOCK-SIZE PARAMETERS
摘要 A method for data processing, comprising providing a sequence of image frames that is encoded by identifying intra and inter frames in the sequence and applying a variable block size motion compensation (VBSMC) procedure to the inter frames, thereby generating respective parameters representing the inter frames; selectively encrypting the block sizes, using an encryptor, without encrypting all of the parameters representing the inter frames; and outputting encoded data representing the sequence of the image frames and comprising the encrypted block sizes.
申请公布号 IL199486(D0) 申请公布日期 2011.08.01
申请号 IL20090199486 申请日期 2009.06.22
申请人 NDS LIMITED;EYAL FARKASH;KEVIN MURRAY 发明人
分类号 G09C;H04N7/167 主分类号 G09C
代理机构 代理人
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