The Visual Computer

, Volume 32, Issue 6–8, pp 1025–1034

Expressive chromatic accumulation buffering for defocus blur

  • Yuna Jeong
  • Sangmin Lee
  • Soonhyeon Kwon
  • Sungkil Lee
Original Article

DOI: 10.1007/s00371-016-1244-x

Cite this article as:
Jeong, Y., Lee, S., Kwon, S. et al. Vis Comput (2016) 32: 1025. doi:10.1007/s00371-016-1244-x


This article presents a novel parametric model to include expressive chromatic aberrations in defocus blur rendering and its effective implementation using the accumulation buffering. Our model modifies the thin-lens model to adopt the axial and lateral chromatic aberrations, which allows us to easily extend them with nonlinear and artistic appearances beyond physical limits. For the dispersion to be continuous, we employ a novel unified 3D sampling scheme, involving both the lens and spectrum. We further propose a spectral equalizer to emphasize particular dispersion ranges. As a consequence, our approach enables more intuitive and explicit control of chromatic aberrations, unlike the previous physically-based rendering methods.


Chromatic aberration Defocus blur Spectral rendering Optical effect Lens system 

Supplementary material

Supplementary material 1 (mp4 21899 KB)

Funding information

Funder NameGrant NumberFunding Note
National Research Foundation of Korea
  • 015R1A2A2A01003783
National Research Foundation of Korea
  • 2012M3A6A3055695

Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  1. 1.Sungkyunkwan UniversitySuwonRepublic of Korea

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