نتایج جستجو برای: cardinalized probability hypothesis density filter

تعداد نتایج: 921707  

Journal: :Iet Radar Sonar and Navigation 2022

The Gaussian mixture probability density (GM-PHD) filter has become a popular approach to solve the multiple-target tracking (MTT) problem because it can effectively and efficiently estimate number of targets target states that change over time from noisy measurements. In GM-PHD filter, detection survival probabilities, birth rate are assumed be constant, irrespective state. However, in some ap...

Journal: :journal of medical signals and sensors 0
ahmad reza naghsh-nilchi hooshiar zolfagharnasab

in this paper, a novel matched filter based on a new kernel function with cauchy distribution is introduced to improve the accuracy ofthe automatic retinal vessel detection compared with other available matched filter‑based methods, most notably, the methods builton gaussian distribution function. several experiments are conducted to pick the best values of the parameters for the new designedfi...

Journal: :Information processing in medical imaging : proceedings of the ... conference 2013
Seyed Hamid Rezatofighi Stephen Gould Ba-Ngu Vo Katarina Mele William E. Hughes Richard I. Hartley

Quantitative analysis of the dynamics of tiny cellular and subcellular structures in time-lapse cell microscopy sequences requires the development of a reliable multi-target tracking method capable of tracking numerous similar targets in the presence of high levels of noise, high target density, maneuvering motion patterns and intricate interactions. The linear Gaussian jump Markov system proba...

Journal: :Mathematical and Computer Modelling 2006
Jason L. Williams Peter S. Maybeck

The problem of tracking targets in clutter naturally leads to a Gaussian mixture representation of the probability density function of the target state vector. Modern tracking methods maintain the mean, covariance and probability weight corresponding to each hypothesis, yet they rely on simple merging and pruning rules to control the growth of hypotheses. This paper proposes a structured, cost-...

2015
Tao Zhang Renbiao Wu

More measurements are generated by the target per observation interval, when the target is detected by a high resolution sensor, or there are more measurement sources on the target surface. Such a target is referred to as an extended target. The probability hypothesis density filter is considered an efficient method for tracking multiple extended targets. However, the crucial problem of how to ...

2014
Youqing Zhu Shilin Zhou Gui Gao Huanxin Zou Lin Lei

If equipped with several radar emitters, a target will produce more than one measurement per time step and is denoted as an extended target. However, due to the requirement of all possible measurement set partitions, the exact probability hypothesis density filter for extended target tracking is computationally intractable. To reduce the computational burden, a fast partitioning algorithm based...

Journal: :International Journal on Smart Sensing and Intelligent Systems 2011

2014
Feihu Zhang Christian Buckl Alois Knoll

This paper studies the problem of multiple vehicle cooperative localization with spatial registration in the formulation of the probability hypothesis density (PHD) filter. Assuming vehicles are equipped with proprioceptive and exteroceptive sensors (with biases) to cooperatively localize positions, a simultaneous solution for joint spatial registration and state estimation is proposed. For thi...

2011
Meng Zhou Antonia Papandreou-Suppappola Cihan Tepedelenlioglu Narayan Kovvali Jun Jason Zhang Lakshminarayan Ravichandran

The tracking of multiple targets becomes more challenging in complex environments due to the additional degrees of nonlinearity in the measurement model. In urban terrain, for example, there are multiple reflection path measurements that need to be exploited since line-of-sight observations are not always available. Multiple target tracking in urban terrain environments is traditionally impleme...

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