603 research outputs found

    From Sensibility to Sense—An Analysis on the Shift of Marianne’s Views on Marriage in Sense and Sensibility

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    Jane Austen is an excellent female writer in the United Kingdom. Many of her works appeal to generation after generation of readers. She wrote and published six novels in total. Sense and Sensibility was one of her popular novels and first named as Elinor and Marianne. Elder sister Elinor is a rational girl who can control her temper appropriately. She loves Edward very much. However, the younger sister Marianne is very emotional. She pursues romantic love and fails to control her temper after the lovelorn. After experiencing many setbacks, Marianne understands many principles and corrects her childish viewpoints. Luckily, both of them get their true love finally.By researching original book and other literatures as well as analyzing the shift of Marianne’s behaviors and views on marriage from sensibility to sense, we can understand wise attitudes towards marriage. That is to say, when a woman chooses her Mr. Right, she should be more rational in love. This paper has great guiding importance for current women to seek their guidance in love. The paper will lead us to find what the rational views on marriage are and what we should do in marriage

    Integrated Deep and Shallow Networks for Salient Object Detection

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    Deep convolutional neural network (CNN) based salient object detection methods have achieved state-of-the-art performance and outperform those unsupervised methods with a wide margin. In this paper, we propose to integrate deep and unsupervised saliency for salient object detection under a unified framework. Specifically, our method takes results of unsupervised saliency (Robust Background Detection, RBD) and normalized color images as inputs, and directly learns an end-to-end mapping between inputs and the corresponding saliency maps. The color images are fed into a Fully Convolutional Neural Networks (FCNN) adapted from semantic segmentation to exploit high-level semantic cues for salient object detection. Then the results from deep FCNN and RBD are concatenated to feed into a shallow network to map the concatenated feature maps to saliency maps. Finally, to obtain a spatially consistent saliency map with sharp object boundaries, we fuse superpixel level saliency map at multi-scale. Extensive experimental results on 8 benchmark datasets demonstrate that the proposed method outperforms the state-of-the-art approaches with a margin.Comment: Accepted by IEEE International Conference on Image Processing (ICIP) 201

    Spatial Variation of Vector Vortex Beams with Plasmonic Metasurfaces

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    The spatial variation of vector vortex beams with arbitrary polarization states and orbital angular momentum (OAM) values along the beam propagation is demonstrated by using plasmonic metasurfaces with the initial geometric phase profiles determined from the caustic theory. The vector vortex beam is produced by the superposition of deflected right- and left-handed circularly polarized component vortices with different helical phase charges, which are simultaneously generated off-axially by the single metasurface. Besides, the detailed evolution processes of intensity profile, polarization distribution and OAM value along the beam propagation distance is analyzed. The demonstrated arbitrary space-variant vector vortex beam will pave the way to many promising applications related to spin-to-orbital angular momentum conversion, spin-orbit hybrid entanglement, particle manipulation and transportation, and optical communication

    Orbital Angular Momentum Transformation of Optical Vortex with Aluminum Metasurfaces

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    The orbital angular momentum (OAM) transformation of optical vortex is realized upon using aluminum metasurfaces with phase distributions derived from the caustic theory. The generated OAM transformation beam has the well-defined Bessel-like patterns with multiple designed topological charges from -1 to +2.5 including both the integer-order and fractional-order optical vortices along the propagation. The detailed OAM transformation process is observed in terms of the variations of both beam intensity and phase profiles. The dynamic distributions of OAM mode density in the transformation are further analyzed to illustrate the conservation of the total OAM. The demonstration of transforming OAM states arbitrarily for optical vortex beams will lead to many new applications in optical manipulation, quantum optics, and optical communication
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