Recognition of 3D Objects Using Heat Diffusion Equations and Random Forests

2016 ◽  
Author(s):  
D. Naji ◽  
M. Fakir ◽  
B. Bouikhalene ◽  
R. Elayachi
Keyword(s):  
Random Forests ◽  
Heat Diffusion ◽  
Diffusion Equations ◽  
3D Objects

scholarly journals Analysis of algebraic multigrid parameters for two-dimensional steady-state heat diffusion equations

2012 ◽  
Vol 36 (7) ◽  
pp. 2996-3006 ◽  
Author(s):  
R. Suero ◽  
M.A.V. Pinto ◽  
C.H. Marchi ◽  
L.K. Araki ◽  
A.C. Alves
Keyword(s):  
Steady State ◽  
Algebraic Multigrid ◽  
Heat Diffusion ◽  
Diffusion Equations ◽  
Two Dimensional ◽  
State Heat ◽  
Steady State Heat

Digital simulation of photoacoustic impulse responses

1986 ◽  
Vol 64 (9) ◽  
pp. 1049-1052 ◽  
Author(s):  
Richard M. Miller
Keyword(s):  
Finite Difference ◽  
Impulse Response ◽  
Depth Distribution ◽  
Digital Simulation ◽  
Heat Diffusion ◽  
Finite Difference Approximation ◽  
Diffusion Equations ◽  
Difference Approximation ◽  
Impulse Responses ◽  
Solid Samples

Impulse-response photoacoustic spectroscopy provides information on the depth distribution of chromophores in solid samples. To gain an understanding of the way in which sample properties affect the impulse response, a digital model has been generated. This model is based on discretization of time and space coupled with a finite-difference approximation of the governing heat-diffusion equations. The simulations are compared with experimental results.

Transient Nonsimilarity Nonlinear Heat Diffusion Solutions

1983 ◽  
Vol 105 (2) ◽  
pp. 295-301 ◽  
Author(s):  
F. B. Cheung
Keyword(s):  
Temperature Field ◽  
Finite Difference ◽  
Differential Equations ◽  
Analytical Method ◽  
Previous History ◽  
Parabolic Type ◽  
Heat Diffusion ◽  
Diffusion Equations ◽  
History Of ◽  
Large Heat

An approximate analytical method for treating parabolic type nonlinear heat diffusion equations is descibed in this study. The method involves transformation of the partial differential equations along with their initial and boundary conditions in terms of several pseudo-similarity variables followed by numerical solution of a system of quasi-ordinary differential equations. One obvious advantage of the approach is that the solution at a particular time can be found independently of the previous history of the temperature field. The simplicity and directness of the method are illustrated by solving the problem of combined conduction and thermal radiation in a large, heat-generating, particulate bed in contact with a solid. Comparison of the present analytical results is made with available finite difference solutions and found to be good.

scholarly journals The series representations for the J and H functions applied in the heat-diffusion equation

2021 ◽  
Vol 25 (6 Part B) ◽  
pp. 4631-4642
Author(s):  
Xiao-Jun Yang ◽  
Yu-Rong Fan
Keyword(s):  
Diffusion Equation ◽  
Series Representation ◽  
Mathematical Physics ◽  
Heat Diffusion ◽  
Diffusion Equations ◽  
Heat Diffusion Equation ◽  
Series Representations ◽  
First Time

In this article the theory of the supertrigonometric and superhyperbolic functions associated with the J and H functions are proposed for the first time. The series representation for the heat-diffusion equations are also given by using the J and H functions. The results are efficient and accurate for the description for the solutions of the PDE in mathematical physics.

Recognition of partially occluded 3D objects

1989 ◽  
Vol 136 (2) ◽  
pp. 124
Author(s):  
Ming-Hong Chan ◽  
Hung-Tat Tsui
Keyword(s):  
3D Objects ◽  
Partially Occluded
Sign in / Sign up

Export Citation Format

Share Document