Reconstruction of Volumetric Reflectance using Spatio-Sequential Frequency Correlation Imaging

In this paper, we propose a novel pro-cam technique for reconstruction of the volumetric reflectance inside an object. The key concept is use of spatio-sequentially modulated illumination to extract only the required signal at a 3D point. We discovered an effect where a projector and camera pair with different focal lengths naturally produced a spatial frequency modulation. By combining this effect with a direct conversion technique to demodulate the signals, the resulting spatio-sequential frequency correlation enables reconstruction of the reflectance at a 3D point within the object. Experimental results based on both synthetic and real data show that the proposed method can reconstruct volumetric reflectance discretely.


  • Tsuyoshi Takatani
  • Takahito Aoto
  • Kenichiro Tanaka
  • Takuya Funatomi
  • Yasuhiro Mukaigawa


[Paper] SIGGRAPH Asia 2018


author = {Takatani, Tsuyoshi and Aoto, Takahito and Tanaka, Kenichiro and Funatomi, Takuya and Mukaigawa, Yasuhiro},
title = {Reconstruction of Volumetric Reflectance using Spatio-Sequential Frequency Correlation Imaging},
booktitle = {Proc. of ACM SIGGRAPH Asia 2018 Technical Briefs},
month = {December},
year = {2018},