Novel Parallelogram Based Pose Estimation Method Lijuan Qin; Yulan Hu; Yingzi Wei ...
2008 4th International Conference on Wireless Communications, Networking and Mobile Computing,
2008-Oct.
Conference Proceeding
A new pose estimation method from parallelogram correspondence is proposed in this paper. This algorithm is simple to solve. It has good real-time characteristic. Furthermore, we could obtain unique ...solution for three-dimensional object pose from parallelogram to locate. Thus, it has good application value in practical engineers. At last, experimental results demonstrate this method is logical and has good real-time characteristic.
This paper presents a new method for five lines in one image to self-calibrate. The first group lines are three lines which are parallel to each other and the second group lines are two lines which ...are parallel to each other. At the same time, the first group lines are perpendicular to the second group lines. Line configurations for self-calibration of this method are new. In addition, the solution process of this method is also different from traditional self-calibration method. It is linear and stable. This paper presents the realization process of this method of self-calibration. The experimental results show this method works well.
To investigate the incidence of senile dementia and depression in the elderly and the factors correlative with these disorders.
All the non-case subjects investigated in a survey of prevalence of ...senile dementia and depression conducted among the elderly population in Xicheng District, Beijing in 1997 were followed up in 1999. The investigation procedure, instruments and diagnostic criteria were identical with those used in 1997 survey.
The annual incidence rates of senile dementia was 0.89% in those aged 60 and over. The incidence rate of old males and that of the old females were not significantly different. The annual incidence rate of senile dementia in groups aged 60 approximately 64, 64 approximately 69, 70 approximately 74 75 approximately 79 80 approximately 84 85 approximately 89, and 90 and over were 0.15% 0.68 % 0.44% 1.32% 2.41% 5.72% and 5.13% respectively. The incidence rate in the elderly over 90 was lower than that in the group aged 85 approximately 89. The minimum annual incidence rate of dep
In this paper, we present a new method for estimating object pose from 2-D to 3-D straight line correspondences. This method can get the closed-form solution of object pose with respect to the camera ...from three Z-like lines. The advantage of this method is that it can compute object pose more quickly than iterative method because it avoids the iterative process of iterative methods. What's more, this method is simple to solve. Especially, we provide a detailed account of the computational aspects of this method. At last, experimental results which demonstrate our method works well and fast are presented.
We present a new pose estimation method from line correspondences and introduce a new iterative method for it. The iterative method works fast. In some cases, the process of search satisfies the ...monotony character which is the premise for convergence of iterative method. Especially, we introduce one monotony region and provide a detailed account of the proof of monotony at this region. The value of the proof is to provide theoretical basis for the iterative method and direct the application of the location method.
We report the first result on Ge-76 neutrinoless double beta decay from CDEX-1 experiment at China Jinping Underground Laboratory. A mass of 994 g p-type point-contact high purity germanium detector ...has been installed to search the neutrinoless double beta decay events, as well as to directly detect dark matter particles. An exposure of 304 kg*day has been analyzed. The wideband spectrum from 500 keV to 3 MeV was obtained and the average event rate at the 2.039 MeV energy range is about 0.012 count per keV per kg per day. The half-life of Ge-76 neutrinoless double beta decay has been derived based on this result as: T 1/2 > 6.4*10^22 yr (90% C.L.). An upper limit on the effective Majorana-neutrino mass of 5.0 eV has been achieved. The possible methods to further decrease the background level have been discussed and will be pursued in the next stage of CDEX experiment.
Location of an object with respect to a camera is an important problem in computer vision. Rectangle is one feature which exists widely in natural environments. In this paper, a new location method ...from rectangle correspondence is presented. This algorithm is simple to solve. It has good real-time characteristic. Furthermore, we obtain unique solution for object pose from rectangle to locate. Thus, it has good practical value in application. At last, simulation results show this method is reasonable and has good real-time characteristic.
In this paper, we propose a novel closed-form method to determine object attitude with respect to the camera for three door-like lines. The advantage of this closed-form method is that it is simple. ...Furthermore, it can compute object pose more quickly than iterative methods because it avoids the iterative process of iterative methods. This method can locate object uniquely at last, thus it solves the multi-solution problem and facilitate the application of pose estimation algorithm in practice. Especially, we provide a detailed account of the computational aspects of this method. At last, experimental results which demonstrate our method works well and fast are presented.
Temporal variations and source apportionment of Hulis-C in PM2.5 in urban Shanghai Zhao, Mengfei; Ting QiaoauthorState Environmental Protection Key Lab of Environmental Risk Assessment and control on Chemical Processes, School of Resources & Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China; Yulan LiauthorShanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China ...
2015
Journal Article
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