Dear All,
It seems that light propagation in tissue like skin can be modeled using ray tracing softwares, though in most of references Monte Carlo method has been used for this purpose.
I need to obtain spatial intensity of light (as well as angular intensity) over the skin when it is lightened using a light source.
So need to know how it is possible?
If possible what softwares are available?
Thank you very much in advance.
Amir,
I'd recommend you to take a look at the book "Light Propagation through Biological Tissue and Other Diffusive Media: Theory, Solutions, and Software"
Author(s): Fabrizio Martelli; Samuele Del Bianco; Andrea Ismaelli; Giovanni Zaccanti
http://spie.org/Publications/Book/824746
I recommend you to look here and get what you need. These guys give an open access C code, which is easily can be converted to the matlab code to make better visualization.
http://omlc.org/software/index.html
In general, the light propagation in turbid media (like tissue), can be describe by means of Radiative Transfer Equation (RTE), which can be reduced to the Diffusion equation (DE) under certain approximations. Often Monte Carlo method is used as a gold standard to solve this task, since it very simple to implement, very accurate, and DE have some problems when solving the problem near the source, but, it should be noted, DE much less time consuming than Monte Carlo technique.
Ray-tracing is a method in physics for calculating the path of EM waves or other types of waves or particles through a system with regions of varying propagation velocities and absorption and reflection characteristics. It can be applied when you solving the tasks where you need to model some mirrors and/or lenses with a rough surface, etc. You can find some code examples for example here
http://www.mysimlabs.com/ray-tracing.html
- Badges
- Science topic
- Similar topics
- Physical Sciences
- Condensed Matter Physics
- Soft Matter
- Liquids