Face relighting based on virtual irradiance sphere and reflection coefficient

Heechul Han, Kwanghoon Sohn

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We present a novel method to estimate the light source direction and relight a face texture image of a single 3-D model under arbitrary unknown illumination conditions. We create a virtual irradiance sphere to detect the light source direction from a given illuminated texture image using both normal vector mapping and weighted bilinear interpolation. We then induce a relighting equation with estimated ambient and diffuse intensity. We provide the result of a series of experiments on light source estimation, relighting, and face recognition to show the efficiency and accuracy of the proposed method in restoring the shading and shadow areas of a face texture image. Our approach for face relighting can be used for illuminant-invariant face recognition applications.

Original languageEnglish
Article number027204
JournalOptical Engineering
Volume47
Issue number2
DOIs
Publication statusPublished - 2008 Feb 1

Fingerprint

irradiance
Light sources
light sources
textures
Textures
Face recognition
reflectance
coefficients
interpolation
Interpolation
Lighting
illumination
estimates
Experiments

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Engineering(all)

Cite this

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Face relighting based on virtual irradiance sphere and reflection coefficient. / Han, Heechul; Sohn, Kwanghoon.

In: Optical Engineering, Vol. 47, No. 2, 027204, 01.02.2008.

Research output: Contribution to journalArticle

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