Paper Info
Title
Acquiring 4d Light Fields Of Self-Luminous Light Sources Using Programmable Filter
Abstract
Self-luminous light sources in the real world often have non-negligible sizes and radiate light inhomogeneously. Acquiring the model of such a light source is highly important for accurate image synthesis and understanding. In this paper, we propose a method for measuring 4D light fields of self-luminous extended light sources by using a liquid crystal (LC) panel, i.e. a programmable filter and a diffuse-reflection board. The proposed method recovers the 4D light field from the images of the board illuminated by the light radiated from a light source and passing through the LC panel. We make use of the feature that the transmittance of the LC panel can be controlled both spatially and temporally. The proposed method enables us to utilize multiplexed sensing, and therefore is able to acquire 4D light fields more efficiently and densely than the straightforward method. We implemented the prototype setup, and confirmed through a number of experiments that the proposed method is effective for modeling self-luminous extended light sources in the real world.
Year
DOI
Venue
2014
10.1007/978-3-319-16181-5_45
COMPUTER VISION - ECCV 2014 WORKSHOPS, PT II
Keywords
Field
DocType
Self-luminous light source, Extended light source, 4D light field, Programmable filter, Multiplexed sensing
Computer vision,Computer science,Light field,Image synthesis,Transmittance,Artificial intelligence,Multiplexing,Liquid crystal,Light source
Conference
Volume
ISSN
Citations 
8926
0302-9743
0
PageRank 
References 
Authors
0.34
4
3
Name
Order
Citations
PageRank
Motohiro Nakamura110.72
Takahiro Okabe277045.30
Hendrik P. A. Lensch3147196.59