Symmetry Improved Photon Maps

Description


This thesis proposes a novel approach towards tackling the
global illumination problem. The basic idea is to improve the quality of photon maps by reusing lighting from different parts of the scene, but also to show that reuse is a viable strategy for improving global illumination in general.
The scene is separated into symmetrical segments and parts of the scene, that share similar radiance are identified. By using the symmetrical relationships between the segments, these areas are then filtered with a version of the non-local means filter that works on photon maps. Depending on the input quality of the photon map, the project managed to improve the quality of the density estimation render significantly. Below you can find the text and code for the thesis. If you’re interested and/or would like to do something with it, please let me know – I’ll be happy to help, if needed.

Images


Original
Original
Filtered
Filtered
Test Resutls
Mean Square Error Comparison

Contributions


  • Boilerplate Photon Map Implementation
  • Proposing and implementing a descriptor for comparing and filtering illumination patches
  • Proposing and implementing a novel “pass based” rendering approach for efficiently visualizing the filtered photon map

Links


Full Thesis
Project Code

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s