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Video object tracking using adaptive Kalman filter 总被引:1,自引:0,他引:1
Shiuh-Ku Chung-Ming Shu-Kang 《Journal of Visual Communication and Image Representation》2006,17(6):1190-1208
In this paper, a new video moving object tracking method is proposed. In initialization, a moving object selected by the user is segmented and the dominant color is extracted from the segmented target. In tracking step, a motion model is constructed to set the system model of adaptive Kalman filter firstly. Then, the dominant color of the moving object in HSI color space will be used as feature to detect the moving object in the consecutive video frames. The detected result is fed back as the measurement of adaptive Kalman filter and the estimate parameters of adaptive Kalman filter are adjusted by occlusion ratio adaptively. The proposed method has the robust ability to track the moving object in the consecutive frames under some kinds of real-world complex situations such as the moving object disappearing totally or partially due to occlusion by other ones, fast moving object, changing lighting, changing the direction and orientation of the moving object, and changing the velocity of moving object suddenly. The proposed method is an efficient video object tracking algorithm. 相似文献
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Ca和Sm双原子共填充方钴矿化合物的制备及热电性能 总被引:2,自引:0,他引:2
用熔融法结合放电等离子快速烧结技术(SPS)制备了单相的Ca和Sm共填充的方钴矿化合物CamSmnFexCo4-xSb12, 研究了两种原子共填充总量及填充分量对其热电性能的影响规律. 结果表明: 随着Ca和Sm双原子共填充总量的增加, p型CamSmnFexCo4-xSb12化合物的Seebeck系数增大、电导率和热导率降低. 当共填充总量相近时, Ca原子填充分量较大的方钴矿化合物, 其电性能较好; 而Sm原子填充分量较大的方钴矿化合物, 其热导率较低、Seebeck系数较高. Ca0.15Sm0.24Fe1.51Co2.48Sb12化合物的最大热电性能指数ZTmax值在775K时为0.85. 相似文献
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