نتایج جستجو برای: tracking algorithm

تعداد نتایج: 847814  

Journal: :J. Visual Communication and Image Representation 2009
Wenlong Zheng Suchendra M. Bhandarkar

A novel algorithm, termed a Boosted Adaptive Particle Filter (BAPF), for integrated face detection and face tracking is proposed. The proposed algorithm is based on the synthesis of an adaptive particle filtering algorithm and the AdaBoost face detection algorithm. An Adaptive Particle Filter (APF), based on a new sampling technique, is proposed. The APF is shown to yield more accurate estimate...

2013
Xiaofeng ZHANG Dixing LI Guowei YANG

The kernel bandwidth of the classical Mean-Shift tracking algorithm is fixed, and it usually results in tracking failure when the target’s size changes. A kernel bandwidth adaptive Mean-Shift tracking algorithm is presented with frame difference method to solve the question in this paper. According to the targets’ size obtained from the inter-frame difference method, the bandwidth matrix of ker...

2010
Kamalika Chaudhuri Yoav Freund Daniel J. Hsu

We study the tracking problem, namely, estimating the hidden state of an object over time, from unreliable and noisy measurements. The standard framework for the tracking problem is the generative framework, which is the basis of solutions such as the Bayesian algorithm and its approximation, the particle filters. However, these solutions can be very sensitive to model mismatches. In this paper...

2009
Jie Xia Jian Wu Haitao Zhai Zhiming Cui

CAMShift is a semi-automatic tracking algorithm, which needs tracking target to be calibrated manually, and can only track one single target at a time. Aiming at these problems, this paper proposes a vehicle tracking approach based on double difference method and CAMShift algorithm. This approach can automatically calibrate moving vehicles in traffic video and achieve multi-target tracking by u...

Journal: :Journal of Multimedia 2013
Xiao Zou Heng Wang Qiuyu Zhang

To propose a gesture model updating and results forecasting algorithm based on Mean Shift, and to solve the problem of target model changing and influenced tracking results in gesture target tracking process. Firstly, the background difference and skin color detection methods are used to detect and get gesture model, and the Mean Shift algorithm is used to track gesture and update the gesture m...

M. R. Ahmadzadeh S. Kazemi

Targets and objects registration and tracking in a sequence of images play an important role in various areas. One of the methods in image registration is feature-based algorithm which is accomplished in two steps. The first step includes finding features of sensed and reference images. In this step, a scale space is used to reduce the sensitivity of detected features to the scale changes. Afterw...

2009
Yumei Xiong Yiming Chen

Analyzing the traditional visual object recognition algorithm, we presented a complete set of visual target recognition and object tracking algorithm. The algorithm uses image processing method to calculate the frame and characteristic points. And a predictable based on the "search window" approach was given in the algorithm. Experiments have shown that this target tracking algorithm speed up p...

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