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ChromaBlur: Rendering Chromatic Eye Aberration Improves Accommodation and Realism

Cholewiak, Steven A.; Love, Gordon D.; Srinivasan, Pratul P.; Ng, Ren; Banks, Martin S.

ChromaBlur: Rendering Chromatic Eye Aberration Improves Accommodation and Realism Thumbnail


Steven A. Cholewiak

Gordon D. Love

Pratul P. Srinivasan

Ren Ng

Martin S. Banks


Computer-graphics engineers and vision scientists want to generate images that reproduce realistic depth-dependent blur. Current rendering algorithms take into account scene geometry, aperture size, and focal distance, and they produce photorealistic imagery as with a high-quality camera. But to create immersive experiences, rendering algorithms should aim instead for perceptual realism. In so doing, they should take into account the significant optical aberrations of the human eye. We developed a method that, by incorporating some of those aberrations, yields displayed images that produce retinal images much closer to the ones that occur in natural viewing. In particular, we create displayed images taking the eye's chromatic aberration into account. This produces different chromatic effects in the retinal image for objects farther or nearer than current focus. We call the method ChromaBlur. We conducted two experiments that illustrate the benefits of ChromaBlur. One showed that accommodation (eye focusing) is driven quite effectively when ChromaBlur is used and that accommodation is not driven at all when conventional methods are used. The second showed that perceived depth and realism are greater with imagery created by ChromaBlur than in imagery created conventionally. ChromaBlur can be coupled with focus-adjustable lenses and gaze tracking to reproduce the natural relationship between accommodation and blur in HMDs and other immersive devices. It may thereby minimize the adverse effects of vergence-accommodation conflicts.


Cholewiak, S. A., Love, G. D., Srinivasan, P. P., Ng, R., & Banks, M. S. (2017). ChromaBlur: Rendering Chromatic Eye Aberration Improves Accommodation and Realism. ACM Transactions on Graphics, 36(6), Article 210.

Journal Article Type Article
Acceptance Date Sep 17, 2017
Online Publication Date Nov 20, 2017
Publication Date Nov 20, 2017
Deposit Date Sep 12, 2017
Publicly Available Date Sep 15, 2017
Journal ACM Transactions on Graphics
Print ISSN 0730-0301
Electronic ISSN 1557-7368
Publisher Association for Computing Machinery (ACM)
Peer Reviewed Peer Reviewed
Volume 36
Issue 6
Article Number 210


Accepted Journal Article (3.1 Mb)

Copyright Statement
© ACM, 2017. This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in ACM transactions on graphics, 36, 6 (210)

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