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Perceptive Visual Attention Model Based on Depth Information for Free Viewpoint Video Rendering

机译:基于深度信息的感知视觉注意力模型用于免费视点视频渲染

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How to detect meaningful video representation becomes an interesting problem in various research communities. Visual attention system detects "Region of Interesting" from input video sequence. Generally the attended regions correspond to visually prominent object in the image in video sequence. In this paper, we have improved previous approaches using spatiotemporal attention modules. We proposed to make use of 3D depth map information in addition to spatiotemporal features. Therefore, the proposed method can compensate typical spatiotemporal saliency approaches for their inaccuracy. Motion is important cue when we derive temporal saliency. On the other hand noise information that deteriorates accuracy of temporal saliency is also obtained during the computation. To obtain the saliency map with more accuracy the noise should be removed. In order to settle down the problem, we used the result of psychological studies on "double opponent receptive field" and "noise filtration" in Middle Temporal area. We also applied "FlagMap" on each frame to prevent "Flickering" of global-area noise. As a result of this consideration, our system can detect the salient regions in the image with higher accuracy while removing noise effectively. It has been applied to several image sequences as a result the proposed method can describe the salient regions with more accuracy in another higher domain than the typical approach does. The obtained result can be applied to generate a spontaneous viewpoint offered by the system itself for "3-D imaging projector" or 3-DTV.
机译:在各种研究社区中,如何检测有意义的视频表示形式已成为一个有趣的问题。视觉注意力系统从输入的视频序列中检测到“感兴趣的区域”。通常,参与区域对应于视频序列中图像中视觉上突出的对象。在本文中,我们改进了使用时空注意模块的先前方法。我们建议除了时空特征外,还要利用3D深度图信息。因此,所提出的方法可以弥补典型时空显着性方法的不准确性。当我们得出时间显着性时,运动是重要的提示。另一方面,在计算期间还获得了降低时间显着性的准确性的噪声信息。为了获得更精确的显着性图,应去除噪声。为了解决这个问题,我们使用了中颞地区“双重对手接受场”和“噪声过滤”的心理学研究结果。我们还在每帧上应用了“ FlagMap”,以防止全局区域噪声“闪烁”。因此,我们的系统可以在有效去除噪声的同时,以更高的精度检测图像中的显着区域。结果,该方法已应用于多个图像序列,与常规方法相比,该方法可以在另一个更高的域中以更高的精度描述显着区域。所获得的结果可以应用于生成系统自身为“ 3-D成像投影仪”或3-DTV提供的自发视点。

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