ID |
原文 |
译文 |
20095 |
针对传统连续自适应均值漂移(CAMshift)跟踪算法在建立目标颜色模型阶段容易包含大量背景颜色信息从而使跟踪效果变差的问题,该文提出一种改进算法。 |
For the deficiency of traditional Continuously Adaptive Mean-shift (CAMshift) tracking algorithm can easily contain a large number of color information which belongs to the background in the process of establishing the target color model, an improved algorithm is proposed. |
20096 |
利用混合高斯模型背景法(GMM)将原始图像分割成前景和背景的叠加, |
The original image is divided into foreground and background based on the Gaussian Mixture Model(GMM). |
20097 |
在原始图像和背景图像上运动物体所在区域分别建立色调分量直方图,利用背景图像的色调分量直方图计算原始图像中对应色调分量的权值,抑制原始图像中与背景颜色相同的色调,扩大前景与背景颜色的差异性。 |
In the original image and the background image, the histogram of the hue component is established. Hue histograms of the background imageare used to calculate the weight of the hue component in the original image. The hues belonging to the background are suppressed and the color differences between foreground and background are expanded. |
20098 |
该方法通过对原始颜色模型中属于背景的色调进行抑制,扩大了目标颜色模型的显著性,提高了跟踪的准确性和稳定性,目标定位的最大中心误差小于20%,能够准确跟踪不发生丢失。 |
Experiment shows that by suppressing the hue components belonging to the background, the saliency of the target color model is expanded. The accuracy and stability of the target recognition are improved. The ratio of the max deviation to the target is less than 20%, which ensures the target not to be lost. |
20099 |
变换光学(TO)是目前电磁领域的一个研究热点,为了对基于TO的隐身斗篷设计提供更深入的理论支持,该文对TO的3个基本数学问题进行了讨论。 |
Transformation Optics (TO) is a hot topic in the research area of electrical-magnetic fields. For providing further theoretical support to the design of stealth carpet based on TO, three basic mathematic problems of TO are discussed in this paper. |
20100 |
首先分析了基于Maxwell方程组3维坐标变换下变换形式的唯一性问题,提出了不同于参考文献的新变换方式,指出了可以灵活调整变换空间特性阻抗的变换方法。 |
Firstly, the uniqueness of transformation form in three-dimensional transformation of Maxwell’s equations is analyzed. A new transformation model is proposed, which is different from the classical one shown in reference. The new model also leads to a new transformation method that can generate flexible characteristic impedance in transformation space. |
20101 |
以此为基础,提出了以自由空间的场分布为原始空间,通过变换获取到可以隐藏在介质包围区域中并和介质阻抗匹配的隐身斗篷设计方法。 |
Based on this, a design method of stealth cloak or carpet that can be used to hide the target in an area surrounded by medium with given permittivity is discussed. During this process, only the field distribution in free space is required as the original field during mapping. |
20102 |
然后以基于波动方程的2维TO为研究对象,分析了以电场分量波动方程为基础进行2维变换时,磁场所满足的变换关系和对应的边界条件特性, |
Secondly, the two-dimensional transformation of the wave equation is studied. The transformation of the magnetic field component in the two-dimensional transformation based on the wave equation of the electric field component is analyzed. The boundary matching during transformation is also discussed. |
20103 |
同样指出了可以隐藏在介质包围区域中并和介质阻抗匹配的隐身斗篷设计方法。 |
The two dimension design method of stealth cloak or carpet that can be used to hide a target in an area surrounded by medium with specified permittivity is also discussed. |
20104 |
最后从数学上证明了2维变换下共形变换对于设计出非各向异性介质隐身斗篷的充分必要性。 |
Finally, the sufficiency and necessity of conformal transformation for designing a two dimension stealth cloak with non-uniform and anisotropic medium are proved strictly. |