Estimating reflectance property from refocused images and its application
to auto material appearance balancing
Norimichi Tsumura1), Kaori Baba1), Shoji Yamamoto2),
and Masao Sambongi3)
1) Graduate School of Advanced Integration Science,
Chiba University
1-33 Yayoi-cho, Inage-ku, Chiba-shi, Chiba 263-8522, Japan
tsumura@faculty.chiba-u.ac.jp
2) Tokyo Metropolitan College of Industrial Technology
8-17-1 Minamisenjyu, Arakawa-ku, Tokyo 116-0003, Japan
3) Olympus Corporation,
2-3 Kuboyama-cho, Hachiouji-shi, Tokyo 192-8512, Japan
Abstract
In this paper, we propose a method to estimate the reflectance property
from refocused images from a light source reflected on an object. The blurred
information of the light source on the surface of the object is expected
to be a practical method to estimate the reflectance property, although
various methods have already been proposed. Because the degree of blurred
information is changed with the position of focus in the camera, we introduce
a light field camera that can change the position of focus after the image
is captured. In this research, we chose the refocused image where the light
source is focused through the reflection on the object surface. Based on
the blurred information of the focused light source, we estimate the reflectance
property of the object. The estimated reflectance property is applied to
inverse rendering for auto material appearance balancing.v
[PDF](to appeare)