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Considering the watermark as a noise, a watermark extraction model is proposed in this paper to enhance the correlation of Digimarc plug-ins in photoshop. First, an estimation of the original image for a watermarked image is obtained by TV (total variation) denoising model based on the partial differential equation. Second, watermark noise information is obtained by subtraction between the watermarked...
In this paper, a zero-watermarking algorithm based on fuzzy adaptive resonance theory (ART) is proposed. There are three roles in the algorithm: the signer, the verifier, and trusted authority (TA). The signer is responsible for constructing the verification information of the host image with fuzzy ART, the verifier can be anyone who wants to check the ownership of the host image, and TA is responsible...
Objective Xanthine oxidase inhibitory activities of the total biflavonoids and eight biflavonoid compounds isolated from the medicinal plants of Selaginella labordei have been investigated. Method The active compounds were screened out by measuring the inhibition rate and the 50% inhibitory concentration (IC50) of each sample against xanthine oxidase (XOD) in vitro. Result Three kinds of biflavonoids...
This paper is concerned with the problem of robust exponential stabilization for uncertain system with mode-dependent time delays and Markovian jump parameters. The delay factor is assumed to be time-varying and belongs to a given interval. The uncertainties considered in this paper are norm-bounded and possibly time-varying. A new state feedback controller with uncertain Markovian jump parameters...
The missing data problem greatly affects traffic analysis. In this paper, we put forward a new reliable method called probabilistic principal component analysis (PPCA) to impute the missing flow volume data based on historical data mining. First, we review the current missing data-imputation method and why it may fail to yield acceptable results in many traffic flow applications. Second, we examine...
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