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Keystroke rhythm is an identity authentication technique which takes persons behaviour characteristics as basis. In this paper, the PR-RP model were analysed, in which four critical dataset were choosed. P-P and R-R relay dataset were rebuilt, and were processed only through using characteristics of some user entering password. And then, so as to improve the recognition rate of authentication, a new...
A feature extraction of edible oil FTIR based on fractal geometry is proposed in this paper. Theoretical calculation formulas of fractal dimension are introduced. The calculation method of box-counting dimension based on FTIR is analyzed. We have used the open source computer vision library OpenCV to implement the FTIR of edible vegetable oils fractal dimension calculation algorithm. The result indicates...
The current image inpainting algorithm based on structure, TV (total variation) algorithm is commonly used, and result is better. But TV algorithm is too slow, this paper presents a fast algorithm to repair. The algorithm first points of the neighboring weighted sort, and then restoration of damaged areas with the right value of the weight. The experimental results also show that the algorithm is...
This paper, residual high-frequency boost method is imported into the iteration process of the simulation-correction iteration image reconstruction algorithm, and produces more high-frequency details information for the algorithm, which improves the algorithm's performance. We use Matlab to implement the algorithm and the results indicate that importing the residual high-frequency boost into the image...
Visual attention is usually attracted by the videos which have motion salient regions, so motion is very important to human's visual attention analysis. In this paper we propose a novel method for motion salient region detection by analyzing region-of-non-interest (RONI) spatial-temporal information. RONI is exploited for the first time in this paper. Different from former methods, our approach starts...
This paper presents the idea of recaption cost to characterize WAP sources of images and improve the classic cache removal policy. Then it gets a new policy of image caches, LFU based on recaption cost; using the algorithm in the wap browser, It adopts the strategy of destroying cached images when exiting the browser, in this way, it not only guarantees obtaining newest images when starting browser...
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