This Letter presents a multiview phase shifting (MPS) framework for full-resolution and high-speed reconstruction of arbitrary shape dynamic objects. Unlike conventional methods, this can directly find the corresponding points from wrapped phase-maps. Therefore, only minimum number images are required to measure objects, including discontinuous surfaces. Benefit MPS achieve full spatial resolution high, accurate 3D reconstruction. constraint is also robust discontinuities. Experimental...

In this paper, wavelet transform on a regression curve is investigated by using length-preserving projection and its application in financial data also discussed. First, properties of filters the trend curves are studied two-scale equation function deduced curves. Second, decomposition reconstruction algorithm discrete derived. Finally, two examples given for discussion, based algorithms Some new research interpretations presented dealing with such as “volatility growth trend”, “error so on.

Numerous fast 3D shape measurement systems based on pattern projection method have been developed in the recent years, but measuring arbitrary dynamic with full resolution, including temporal resolution and spatial is still a big challenging problem. This paper presents real-time system resolution. In this system, three-step phase-shifting algorithm employed for measurement, multi-view correspondence used to search corresponding point independently without additional images. So any adjacent...

According to the theory of wavelet analysis on [Formula: see text], a smooth surface text] with nonzero constant Gaussian curvature will be discussed systematically in this paper. First, general area-preserving projection from plane presented by and sphere. Then continuous transform its inverse projection, relative dilation operator translation operator. Further, according multi-resolution surface, discrete properties investigated systematically, including two-scale equations function,...

According to the length-preserving projection and Euler discretization method, biorthogonal wavelet function on a smooth curve <math xmlns="http://www.w3.org/1998/Math/MathML" id="M2"> <mi mathvariant="script">C</mi> </math> is constructed in this paper, such as logarithm curve. The properties of filters id="M3"> are discussed, induced refinable equation symmetry. Moreover, an example given for discussing scaling its dual id="M4"> . Finally, numerical application dealing with financial data.

For the smooth surface M, explicit construction of local flattening map p is given, where bijection projection from a M to plane. By virtue inverse -1 , wavelet transform on can be generated Take torus T 2 for example, by using torus, dilation systematically studied, formula offered and transform, that is, reconstruction also offered. Finally, we show graphical representation torus.

According to the wavelet digital watermarking method, text hiding algorithm is presented for some information in a signal with white noises and corresponding recovery also obtaining from synthesized signal. Firstly, introduced an example given demonstrating how hide s noise ε, where = f(x) + ε function such as sin x, cos x so on. A [Formula: see text] can be obtained by algorithm. Then, approach recovered example. Some figures of are shown that its feasible. Moreover, roles function, noise,...

Abstract The existing sparse decomposition denoising methods for magnetotelluric (MT) data need to set the iterative stop condition manually, which not only has a large workload and high difficulty, but also easily causes subjective bias. To this end, we propose new adaptive representation method MT denoising. First, be processed is divided into high-quality segments noisy by machine learning algorithm. Then, characteristic parameters of are calculated, boundary value taken as threshold....

Based on the theory of discrete multi-wavelets in space L 2 (R), (C) is presented properly this paper, where C denotes a smooth plane curve. Firstly, length-preserving projection constructed, and by projection, multiplicity multi-resolution analysis defined we define dilation operator translation (C). Then, two-scale refinement equations multi-scaling function multi-wavelet deduced using mapping, orthogonality discussed, decomposition reconstruction algorithm computed. Finally, example given.

In this paper, a water quality evaluation model of nearshore (Dalian Bay) is built through artificial neural network based on the analysis history information and monitoring data. which back propagation (BP) used. A hierarchical prediction established according to at different period. Results illustrates methodology practicable can be provided scientific proof for prevention Dalian Bay. The method does not demand data's rules has characteristic impersonality, credibility highly inaccuracy...

The variable structure multiple-model (VSMM) algorithm to passive radar maneuvering target tracking problem is considered. A new VSMM design, expected mode augmentation based on likely model set (LMS-EMA) presented. LMS-EMA adaptively determines the fixed grid using (LMS) algorithm, and generates this set. Then, union of used perform estimation. performance evaluated via simulation a highly problem.

Abstract In this paper, wavelet transform on a generalized helix space curves are investigated, including of local continuous at some point and discrete class curves. Firstly, introduced the parameter equations given. Then dilation operator translation function $$\psi^{{(\xi_{{0}} )}}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mi>ψ</mml:mi> <mml:mrow> <mml:mo>(</mml:mo> <mml:msub> <mml:mi>ξ</mml:mi> <mml:mn>0</mml:mn> </mml:msub> <mml:mo>)</mml:mo>...

Robotic devices with integrated tactile sensors can accurately perceive the contact force, pressure, sliding, and other information, they have been widely used in various fields, including human–robot interaction, dexterous manipulation, object recognition. To address challenges associated initial value drift, to improve durability accuracy of detection for a robotic hand, this study, flexible sensor is designed high repeatability by introducing supporting layer pre-separation. The proposed...

Image segmentation and image denoising are two important fundamental topics in the field of processing. Geometric active contour model based on level set method can deal with problem segmentation, but it does not consider denoising. In this paper, a new diffusion equation for noisy is proposed by incorporating some classical models into segmental process. An assumption about connection between intensity function given firstly. Some employed to describe evolution secondly. The final nonlinear...

The multiview phase-shifting method shows its powerful capability in achieving high resolution three-dimensional (3-D) shape measurement. Unfortunately, this ability results very computation costs and 3-D computations have to be processed offline. To realize real-time measurement, a hybrid parallel computing architecture is proposed for phase shifting. In architecture, the central processing unit can co-operate with graphic (GPU) achieve computing. cost procedures, including lens distortion...