نتایج جستجو برای: displacement error
تعداد نتایج: 306570 فیلتر نتایج به سال:
— Moving pixel displacement detection algorithm using correlation functions for making panorama image on the continuous images is presented in this paper. The input images get from a CMOS image sensor (CIS). The camera is maintained by constant brightness and uniform sensing area in test input pattern. For simple navigation and capture image has to 70% overlapped region. A correlation rate in t...
probability of this quantum receiver did not fall below 10–4 is due to experimental limitations; in particular, the visibility of the interferometer at the beamsplitter used in the displacement operation and the detection efficiency of the singlephoton detector were major sources of imperfection. Imperfect visibility causes errors in photon counts even when a correct displacement operation is c...
Grating displacement measurement technique is an important means to achieve precise displacement measurement of nanometer scale. Moiré fringe phase difference measurement is the basis of grating displacement measurement technique. Traditional Moiré fringe subdivision method based on DFT algorithm has low frequency resolution relatively when extracting Moiré fringe fundamental frequency spectral...
Common hybrid video coding standards such as H.263, MPEG-1,2,4 are based on motion compensated prediction. For the motion compensated prediction purpose, displacement vectors with fractional-pel resolutions (e.g. 1/2-pel or 1/4-pel) are used. In order to estimate and compensate fractional-pel displacements, the image signal has to be interpolated. The most popular and very simple interpolation ...
PURPOSE To reconstruct three-dimensional (3D) myocardial deformations from orthogonal sets of parallel-tagged magnetic resonance (MR) images. MATERIALS AND METHODS Displacement information in the direction normal to the undeformed tag planes was obtained at points along tag lines. Three independent sets of one-dimensional displacement data were used to fit an analytical series expression to d...
We consider the von Kármán nonlinearity and the Casimir force to develop reduced-order models for prestressed clamped rectangular and circular electrostatically actuated microplates. Reduced-order models are derived by taking flexural vibration mode shapes as basis functions for the transverse displacement. The in-plane displacement vector is decomposed as the sum of displacements for irrotatio...
Confronted with the chaotic characteristics of landslide displacement and the deficiencies of traditional time series prediction model, the wavelet analysis -support vector machine model (WA-SVM) based on chaotic time series for landslide displacement prediction is proposed. On the basis of the analysis of chaotic characteristics, landslide displacement is decomposed in to components with diffe...
When a vehicle travels on a road, different parts of vehicle vibrate because of road roughness. This paper proposes a method to predict road roughness based on vertical acceleration using neural networks. To this end, first, the suspension system and road roughness are expressed mathematically. Then, the suspension system model will identified using neural networks. The results of this step sho...
Statistical theories of animal movement have often been based on models of random walks where movements take place in discrete steps and occur at discrete times. The multiplicity of distributions required in these approaches to describe animal movement (i.e., the distributions of angles, discrete steps, and times), have effects that cannot be simply disentangled, and hence cannot be unambiguous...
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