In order to analyze the back of hand vein pattern rapidly and effectively, a novel approach based on multi-scale second-order differential model is proposed to extract the vein texture from vein samples directly, which is made up of two section: one is the foundation of local second-order differential model of vein texture (VLSDM), the other is texture extraction based on the multi-scale VLSDM....

<abstract><p>We introduce a new heterogeneous multi-scale method for the simulation of flows non-Newtonian fluids in general geometries and present its application to paradigmatic two-dimensional polymeric fluids. Our combines micro-scale data from non-equilibrium molecular dynamics (NEMD) with macro-scale continuum equations achieve data-driven prediction complex flows. At level, i...

AbstractAnomalies can be defined as any non-random structure that deviates from normality. Anomaly detection methods reported in the literature are numerous and diverse, what is considered anomalous usually varies depending on particular scenarios applications. In this work, we propose an a contrario framework to detect anomalies images applying statistical analysis feature maps obtained via co...

Abstract Infrared small target detection is widely used in aerial and tracking system because of its long distance strong anti-jamming ability. Aiming at the shortcomings current infrared algorithm, such as low precision rate high false alarm when dealing with complex background. In this paper, we propose an end-to-end model (called MFSSD) based on multi-scale feature fusion. Considering trait ...

Scale space theory has been introduced into the field of big data, but its research is still not deep enough and perfect because of the lack of universal theory and method. With deepening of big data processing applications, the research becomes more and more urgent. In view of the above question, this paper studies pervasive multi-scale data analysis theory and method. On one hand, we give the...

the continuum based approaches don’t provide the correct physics in atomic scales. on the other hand, the molecular based approaches are limited by the length and simulated process time. as an attractive alternative, this paper proposes the fixed interfacial multiscale method (fimm) for computationally and mathematically efficient modeling of solid structures. the approach is applicable to mult...