Secure Transcoding for Compressive Multimedia Sensing

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Title:	Secure Transcoding for Compressive Multimedia Sensing
Authors:	林智揚;Lin, Chih-Yang;Li-Wei Kang;Hung-Wei Chen;Chia-Mu Yu;Chun-Shien Lu;Chao-Yung Hsu;Soo-Chang Pei
Contributors:	資訊工程學系
Keywords:	Secure transcoding;compressive sensing (CS);sparse representation;multimedia compression and communication
Date:	2011-07
Issue Date:	2012-11-26 05:57:27 (UTC+0)
Abstract:	Compressive sensing (CS) has recently attracted much attention due to its unique feature of directly and simultaneously acquiring compressed and encrypted data based on their sparse or compressible properties. To securely transmit compressively sensed multimedia data over networks, it is required to support transcoder to securely convert compressed multimedia into several different types for diverse receivers. In this paper, a secure transcoding scheme for compressive multimedia sensing is proposed. We focus on securely converting compressively sensed multimedia data (not data compressed via standard codec) with a certain number of measurements into other different numbers of measurements without resorting to reconstruct the original data. We show that the security can be achieved via transforming multimedia re-sensing process into another secure domain at the transcoder. We also show that the computational security can be achieved while transmitting compressively sensed data between the sender (or each receiver) and the transcoder over networks.
Relation:	IEEE International Conference on Image Processing
Appears in Collections:	[Department of Computer Science and Information Engineering] Journal Artical

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