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A simple target scattering model is developed integrating the shape factor and geometric randomness that are less influenced by the SAR configuration, dielectric properties of crop, and the underlying soil conditions, to describe the shape and statistical distribution of the targets, respectively. 47 fully polarimetric RADARSAT-2 images in FQ1W, FQ6W, FQ10W, FQ15W and FQ19W modes with different incidence...
To narrow down the semantic gap and increase the retrieval efficiency in image retrieval, relevance feedback (RF) has long been an important approach, where the active support vector machine (SVM) based RFs are widely applied to content-based image retrieval (CBIR). However, the performance of these methods are often poor because the low speed of SVM algorithm in high dimension data. Meanwhile, the...
Aiming at the team training under man-machine cooperation environment, an equipment oriented event-based hardware-in-the-loop simulation principle is expounded. Based on it, a simulation framework is designed. Then, a concept modeling approach of simulation system is proposed based on theory of concept lattices. Finally, a hardware-in-the-loop simulation test system is realized for a type of communication...
Environmental issues are rapidly emerging as one of the most important topics in strategic supplying decisions. Perusal of the literature has shown many models to support executives in the assessment of a company's environmental performance. Unfortunately, none of these identifies operating guidelines on how the systems should be adapted to support the deployment of different types of tobacco supply-chain...
This paper aimed at proposing a new hypocycloid mechanism to actually realize energy transformation between rectilinear motion and rotary motion. The 3D virtual prototype mechanism is presented and it's simplified to reduce the complexity of analysis. The kinematics and dynamics characteristics of this mechanism were studied. For obtaining motion characteristic of the parts in new mechanism, the motion...
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