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Scanned images of historical documents often suffer from bleed-through, which refers to the ink on one side seeping through the paper and appearing on the other side. In this paper, a new conditional random field (CRF)-based method is proposed to remove the bleed-through from the scanned images of historical images. The proposed method only requires the scanned image of one side, referred as a blind...
Vegetation fraction is an important index for sandy land evaluation, but it changes with time and precipitation obviously, especially the annual ephemeral plants. How to choose the best time for vegetation coverage to evaluate the sandy land degree is an imperative question. In this paper, soil adjusted vegetation index (SAVI), pixel dichotomy model and pixel unmixed model for multi-endmumber were...
Due to the quality of paper and long-time preservation, the ink on one side of the historical documents often seeps through and appears on the other side. In this paper, a new blind ink bleed-through removal method is proposed to deal with the scanned historical document images. The scanned historical document image generally consists of three components: foreground, bleed-through and background....
A financial index forecasting model based on modified RBF neural network is proposed to find important points of stock index which can solve market identification problem. K-means algorithm is used to search initial center parameters of neurons and adjust optimal structure of network. And gradient descent method is set to search optimal centers through intelligent learning the operating mode of stock...
P2P network has become an important branch of Internet recently, with the significant advantages of full resource utilization, dynamics, openness and high scalable, which helps it achieve wide applications. But security and trust have also become urgent problems for a P2P network due to its openness and anonymousness. Most of the current schemes rely on some trust models, but the research in systematic...
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