RANDOM WALKS AND EFFECTIVE OPTICAL DEPTH IN RELATIVISTIC FLOW
نویسندگان
چکیده
منابع مشابه
Random Walks and Effective Resistances on Toroidal and Cylindrical Grids
A mapping between random walk problems and resistor network problems is described and used to calculate the effective resistance between any two nodes on an infinite twodimensional square lattice of unit resistors. The superposition principle is then used to find effective resistances on toroidal and cylindrical square lattices.
متن کاملRapid and effective segmentation of 3D models using random walks
3D models are now widely available for use in various applications. The demand for automatic model analysis and understanding is ever increasing. Model segmentation is an important step towards model understanding, and acts as a useful tool for different model processing applications, e.g. reverse engineering and modeling by example. We extend a random walk method used previously for image segm...
متن کاملMotion and Depth from Optical Flow
Passive navigation of mobile robots is one of the challenging goals of machine vision. This note demonstrates the use of optical flow, which encodes the visual information in a sequence of time varying images [1], for the recovery of motion and the understanding of the three dimensional structure of the viewed scene. By using a modified version of an algorithm, which has recently been proposed ...
متن کاملThe Type Problem: Effective Resistance and Random Walks on Graphs
The question of recurrence or transience – the so-called type problem – is a central one in the theory of random walks. We consider edgeweighted random walks on locally finite graphs. The effective resistance of such weighted graphs is defined electrically and shown to be infinite if and only if the weighted graph is recurrent. We then introduce the Moore-Penrose pseudoinverse of the Laplacian ...
متن کاملLecture 4 - 5 : Effective Resistance and Simple Random Walks
The notion of electrical flows arises naturally when we treat our graph as a resistor network. Given a graph G = (V,E) with weights w(.) on the edges, we replace each edge e with a resistance of resistor 1/w(e). In other words, think of w(e) as the conductance of the edge e. We can then study how the electricity flows in this network. Now, we write two underlying properties of electrical flows....
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2014
ISSN: 2041-8205,2041-8213
DOI: 10.1088/2041-8205/787/1/l4