Spatial differential analysis of the intensity distribution for a collimated wave beam

Представлен метод сравнительного анализа профилей распределения интенсивности на основе тензора структуры изображения. Совокупность параметров массива локальных тензоров, вводимых для каждого пикселя регистрируемого изображения, используется для определения спектра локальных ориентаций, профиля энергоемкости изображения и согласованности его структуры. Рассматриваемый метод актуален для дискретного анализа пространственной и пространственно-временной структуры волновых пучков, прошедших область локализованных или распределенных рефракционных помех. A method for the comparative analysis of intensity distribution profiles is proposed on the basis of the image structure tensor. The parameter set of the local tensor array introduced for each pixel of the recorded image is used to determine the spectrum of local orientations, the energy intensity profile of the image, and the coherency of its structure. The proposed method is important for the discrete analysis of space-time structures of wave beams transmitted through the regions of localized or distributed refractive noises.

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Coarse-to-fine optical flow estimation with image structure tensor

2013 6th International Congress on Image and Signal Processing (CISP) ◽

10.1109/cisp.2013.6745263 ◽

2013 ◽

Author(s):

Zhen Chen ◽

Congxuan Zhang ◽

Ming Li

Keyword(s):

Optical Flow ◽

Structure Tensor ◽

Flow Estimation ◽

Optical Flow Estimation ◽

Image Structure ◽

Coarse To Fine

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Space-Time Structures in Classical Mechanics

Studies in the Foundations Methodology and Philosophy of Science - Delaware Seminar in the Foundations of Physics ◽

10.1007/978-3-642-86102-4_3 ◽

1967 ◽

pp. 28-34 ◽

Cited By ~ 10

Author(s):

Walter Noll

Keyword(s):

Classical Mechanics ◽

Space Time ◽

Time Structures

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Analysis of the spillover effect of energy intensity among provinces in China based on space-time lag model

Environmental Science and Pollution Research ◽

10.1007/s11356-020-08169-6 ◽

2020 ◽

Vol 27 (14) ◽

pp. 16950-16962 ◽

Cited By ~ 2

Author(s):

Ying Han ◽

Xiaoyuan Qi ◽

Yuanfan Yang

Keyword(s):

Energy Intensity ◽

Time Lag ◽

Spillover Effect ◽

Space Time ◽

Lag Model

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Ordered space-time structures: Quantum carpets from Gaussian sum theory

Science China Physics Mechanics and Astronomy ◽

10.1007/s11433-018-9339-0 ◽

2019 ◽

Vol 62 (7) ◽

Author(s):

HuiXin Xiong ◽

XueKe Song ◽

HuaiYang Yuan ◽

DaPeng Yu ◽

ManHong Yung

Keyword(s):

Space Time ◽

Gaussian Sum ◽

Ordered Space ◽

Time Structures

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Overview and comparative analysis of Toeplitz covariance matrix estimation methods for space-time signal processing

2011 VIII International Conference on Antenna Theory and Techniques ◽

10.1109/icatt.2011.6170749 ◽

2011 ◽

Author(s):

A. V. Semeniaka ◽

D. S. Rachkov

Keyword(s):

Signal Processing ◽

Comparative Analysis ◽

Covariance Matrix ◽

Space Time ◽

Estimation Methods ◽

Covariance Matrix Estimation ◽

Time Signal ◽

Matrix Estimation

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The shape dynamics description of gravity

Canadian Journal of Physics ◽

10.1139/cjp-2015-0029 ◽

2015 ◽

Vol 93 (9) ◽

pp. 956-962 ◽

Cited By ~ 4

Author(s):

Tim Koslowski

Keyword(s):

Minkowski Space ◽

Space Time ◽

Point Of View ◽

Small Scale ◽

Shape Dynamics ◽

Quantum Particles ◽

Minkowski Space Time ◽

Time Structures ◽

Geometric Picture

Classical gravity can be described as a relational dynamical system without ever appealing to space–time or its geometry. This description is the so-called shape dynamics description of gravity. The existence of relational first principles from which the shape dynamics description of gravity can be derived is a motivation to consider shape dynamics (rather than general relativity) as the fundamental description of gravity. Adopting this point of view leads to the question: What is the role of space–time in the shape dynamics description of gravity? This question contains many aspects: Compatibility of shape dynamics with the description of gravity in terms of space–time geometry, the role of local Minkowski space, universality of space–time geometry and the nature of quantum particles, which can no longer be assumed to be irreducible representations of the Poincaré group. In this contribution I derive effective space–time structures by considering how matter fluctuations evolve along with shape dynamics. This evolution reveals an “experienced space–time geometry.” This leads (in an idealized approximation) to local Minkowski space and causal relations. The small-scale structure of the emergent geometric picture depends on the specific probes used to experience space–time, which limits the applicability of effective space–time to describe shape dynamics. I conclude with discussing the nature of quantum fluctuations (particles) in shape dynamics and how local Minkowski space–time emerges from the evolution of quantum particles.

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