Accelerated Smoke Simulation by Super-Resolution with Deep Learning on Downscaled and Binarized Space

Byeong Sun Hong, Qimeng Zhang, Chang Hun Kim, Jung Lee, Jong Hyun Kim

Research output: Contribution to journalArticlepeer-review

Abstract

In this paper, we propose a highly efficient method for synthesizing high-resolution(HR) smoke simulations based on deep learning. A major issue for physics-based HR fluid simulations is that they require large amounts of physical memory and long execution times. In recent years, this issue has been addressed by developing deep-learning-based super-resolution(SR) methods that convert low-resolution(LR) fluid simulation results to HR(High-resolution) versions. However, these methods were not very efficient because they performed operations even in areas with low density or no density. In this paper, we propose a method that can maximize its efficiency by introducing a downscaled and binarized adaptive octree. However, even if it is divided by octree, because the number of nodes increases when the resolution of the simulation space is large, we reduce the size of the space by multiscaling and at the same time perform binarization to preserve the density that may be lost in this process. The octree calculated in this process has a structure similar to that of a multigrid solver, and the octree calculated at coarse resolution is restored to its original size and used for HR expression. Finally, we apply the SR process only to those areas having significant density values. Using the proposed method, the SR process is significantly faster and the memory efficiency is improved. The performance of our method is compared with that of an existing SR method to demonstrate its efficiency.

Original languageEnglish
Article number9478850
Pages (from-to)98615-98629
Number of pages15
JournalIEEE Access
Volume9
DOIs
Publication statusPublished - 2021

Keywords

  • Fluid simulations
  • adaptive synthesizing
  • deep learning
  • octree
  • physics-based simulations
  • super-resolution

ASJC Scopus subject areas

  • Computer Science(all)
  • Materials Science(all)
  • Engineering(all)

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