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Authors: Miguel Angel Garcia, Agusti Solanas.

Publication date: 2004/8/26

Conference: Proceedings of the 17th International Conference on Pattern Recognition, 2004. ICPR 2004.

Description: This paper proposes a new technique for computing the distance to an unknown planar surface and, at the same time, estimating the material of the surface through the use of low-cost infrared sensors. Previous approaches to this problem required more costly ultrasound systems as a complement or, alternatively, an exhaustive training process that records the sensor response corresponding to known materials measured at different predefined distances. Experimental results with an off-the-shelf infrared sensor mounted on a mobile robot are presented.

Authors: Francesc Sebé, Josep Domingo-Ferrer, Antoni Martinez-Balleste, Yves Deswarte, Jean-Jacques Quisquater.

Publication date: 2008/6/27

Conference: IEEE Transactions on Knowledge and Data Engineering

Description: Checking data possession in networked information systems such as those related to critical infrastructures (power facilities, airports, data vaults, defense systems, etc.) is a matter of crucial importance. Remote data possession checking protocols permit to check that a remote server can access an uncorrupted file in such a way that the verifier does not need to know beforehand the entire file that is being verified. Unfortunately, current protocols only allow a limited number of successive verifications or are impractical from the computational point of view. In this paper, we present a new remote data possession checking protocol such that: 1) it allows an unlimited number of file integrity verifications; 2) its maximum running time can be chosen at set-up time and traded off against storage at the verifier.
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