Zlepšení v oblasti Monte Carlo objemového vykreslování ve viditelné a infračervené části spektra
| Thesis title in Czech: | Zlepšení v oblasti Monte Carlo objemového vykreslování ve viditelné a infračervené části spektra |
|---|---|
| Thesis title in English: | Improvements to Monte Carlo Volume Rendering in the Visible and Infrared Region of the Spectrum |
| Key words: | Monte Carlo přístupy|infračervené vykreslování|objemové vykreslování |
| English key words: | Monte Carlo techniques|Infrared rendering|Volume rendering |
| Academic year of topic announcement: | 2025/2026 |
| Thesis type: | dissertation |
| Thesis language: | |
| Department: | Department of Software and Computer Science Education (32-KSVI) |
| Supervisor: | prof. Dr. techn. Alexander Wilkie |
| Author: | hidden - assigned and confirmed by the Study Dept. |
| Date of registration: | 09.10.2025 |
| Date of assignment: | 09.10.2025 |
| Confirmed by Study dept. on: | 12.10.2025 |
| Guidelines |
| Modern Monte Carlo rendering techniques are predominantly focused on simulating the interaction of electromagnetic radiation with matter in the visible spectrum, with the goal of creating realistic images for human observers. Most visual phenomena that need to be included to create almost arbitrarily realistic scenes in such systems have been researched by now, but some details still remain to be researched. This includes physically correct modelling of volumetric material appearance, in particular transmission colour: here, the challenge is not so much simulation of the process itself which has long been solved: but to provide an intuitive user interface for it, and to ensure accurate calculations even if the rendering engine is internally working with RGB values.
The same Monte Carlo rendering technologies that are by now well established in the visible range can also be applied to simulate thermal processes. Such simulations have a significant potential in the field of engineering, particularly in areas like heat management of buildings, for instance to allow accurate comparisons of various insulation types. Which makes research on porting established graphics techniques to the infrared domain a very relevant and pressing concern. Recent research has demonstrated the potential of integrating Monte Carlo radiative transfer with the other modes of energy transfer that occur, namely conduction and convection. However, this research focused on the integration of the different transport modes, and not on providing accurate models for interaction of electromagnetic radiation with volume materials. Which is where our further research will be focused: after working on accessible and accurate models for visible range transmission, we will also provide initial models for infrared transmission, to be used in the combined simulation pioneered by Bati et al. We will also work on the efficiency of spectrally resolved infrared simulation: the much larger spectral range makes efficient storage, sampling and handling of spectral data more challenging than visible range spectral rendering, and such systems will need to be optimised differently than conventional visible range systems. An additional topic that we will work on as needed is to possibly port knowledge on optimisation of Monte Carlo volume rendering to infrared simulations. Here again, the much larger spectral integration range might require changes to the algorithms that are in use for the visible range. Whether we will actually need to work on this will be determined in year 2 of the project. |
| References |
| Tregan JM, Amestoy JL, Bati M, Bezian J- J, Blanco S, Brunel L, et al. (2023) Coupling radiative, conductive and convective heat-transfers in a single Monte Carlo algorithm:
A general theoretical framework for linear situations. PLoS ONE 18(4): e0283681. https://doi.org/10.1371/ journal.pone.0283681 Mégane Bati, Stéphane Blanco, Christophe Coustet, Vincent Eymet, Vincent Forest, et al.. Coupling Conduction, Convection and Radiative Transfer in a Single Path-Space: Application to Infrared Rendering. ACM Transactions on Graphics, inPress, 42 (4), pp.1-20. 10.1145/3592121 . hal-04090428v2 |
| Preliminary scope of work in English |
| Year 1
During the first year, we will work on an extended model for visible range transmission colour, but also start investigation of the basics of current Monte Carlo IR transport. Year 2 Work on obtaining measurements of various materials, to determine their scattering and absorption characteristics in the various bands of infrared radiation. Also, work on enhancing the efficiency of spectrally resolved IR simulation. Year 3 Based on the measurements from year 2, development of a new volume model for infrared transmission and scattering. This will be integrated into a suitably enhanced spectral version of STARDIS that we will implement based on the foundation work from year 2. Year 4 Wrapping up, work on verification of the results obtained with the new infrared volume material models. |