PURPOSE: A scalable media encryption system and method are provided to automatically select an encryption area according to a PSNR set value. CONSTITUTION: A sample image extractor(102) extracts a sample image from an original image. An SVC(Scalable Video Coding) encoder(104) performs the SVC of the sample image. A first SVC encryption encoder(105) encodes the SVC encryption of the sample image. A PSNR(Pick Signal-to-Noise Ratio) measuring unit(108) measures the PSNR of the SVC image and the encrypted image. An encrypted area extracting/managing unit(110) transfers a security profile to the first SVC encryption encoder.
申请公布号
KR20110070500(A)
申请公布日期
2011.06.24
申请号
KR20090127342
申请日期
2009.12.18
申请人
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE