发明名称 |
PARTIAL ENCRYPTION USING VARIABLE BLOCK-SIZE PARAMETERS |
摘要 |
<p>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.</p> |
申请公布号 |
CA2766308(C) |
申请公布日期 |
2015.08.25 |
申请号 |
CA20092766308 |
申请日期 |
2009.12.27 |
申请人 |
NDS LIMITED |
发明人 |
FARKASH, EYAL;MURRAY, KEVIN A. |
分类号 |
H04N21/2347;H04L9/00;H04N7/167;H04N19/119;H04N19/159;H04N19/18;H04N19/61 |
主分类号 |
H04N21/2347 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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