Code covered by the BSD License  

Highlights from
SimPartCohImg: Simulate images produced by microscopy and lithography systems

Be the first to rate this file! 8 Downloads (last 30 days) File Size: 180.22 KB File ID: #31766
image thumbnail

SimPartCohImg: Simulate images produced by microscopy and lithography systems

by Shalin Mehta

 

12 Jun 2011 (Updated 30 Nov 2011)

Accurate computation of 3D images produced by partially coherent imaging systems.

| Watch this File

File Information
Description

 SimPartCohImg uses 'sum over the source' algorithm to compute the images produced by
  partially coherent (i.e., non-fluorescent) imaging systems such as phase microscopes and optical lithography systems. Total image is the sum of the images produced due to individual condenser points.
The image simulation is normalized to allow fair comparison of contrast and brightness when the same specimen is imaged with different imaging configurations OR when different specimens are imaged with the same imaging configuration.

TODO: For the comparison to be valid, simulation has to be performed on the same spatial grid. In future, devise normalization that is not dependent on the simulation grid.

This is perhaps the first freely available code for this purpose. I have placed special emphasis on ensuring accuracy of the computation. The computed images match very well with analytical results (for cases where analyical expressions can be derived). Please refer to two accompanying published test benches : One test bench verifies the accuracy of computation by computing 3D image of a point specimen and the other illustrates the computation of images of a phase-spoke target.

Required Products Image Processing Toolbox
MATLAB release MATLAB 7.11 (2010b)
Tags for This File  
Everyone's Tags
Tags I've Applied
Add New Tags Please login to tag files.
Please login to add a comment or rating.
Updates
15 Jun 2011

In the first submission, I had missed out a couple of utility functions. They are now included.

30 Nov 2011

Corrected a bug in simulation of phase-contrast image formation.

The image simulation is normalized to allow fair comparison of contrast and brightness

Tag Activity for this File
Tag Applied By Date/Time
phasecontrast Shalin Mehta 13 Jun 2011 09:39:16
darkfield Shalin Mehta 13 Jun 2011 09:39:16
lithography Shalin Mehta 13 Jun 2011 09:39:16
aerial image Shalin Mehta 13 Jun 2011 09:39:16
image formation Shalin Mehta 13 Jun 2011 09:39:16
partially coherent Shalin Mehta 13 Jun 2011 09:39:16
microscopy Shalin Mehta 13 Jun 2011 09:39:16

Contact us at files@mathworks.com