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Author, Editor

Author(s):

Lehtinen, Jaakko
Kautz, Jan

dblp
dblp

Not MPG Author(s):

Lehtinen, Jaakko

Editor(s):

Spencer, Stephen N.

dblp

Not MPII Editor(s):

Spencer, Stephen N.

BibTeX cite key*:

Lehtinen:2003:MRT

Title, Booktitle

Title*:

Matrix Radiance Transfer

Booktitle*:

ACM SIGGRAPH 2003 Symposium on Interactive 3D Graphics

Event, URLs

URL of the conference:

http://www.siggraph.org/conferences/i3d/

URL for downloading the paper:

http://www.mpi-sb.mpg.de/~jnkautz/projects/mrt/mrt_preprint.pdf

Event Address*:

Monterey, USA

Language:

English

Event Date*
(no longer used):

April, 28 - April, 30

Organization:

Association of Computing Machinery (ACM)

Event Start Date:

28 April 2003

Event End Date:

30 April 2003

Publisher

Name*:

ACM

URL:

http://www.acm.org/

Address*:

New York, USA

Type:


Vol, No, Year, pp.

Series:


Volume:


Number:


Month:

April

Pages:

59-64

Year*:

2003

VG Wort Pages:

8

ISBN/ISSN:

1-58113-645-5

Sequence Number:


DOI:




Note, Abstract, ©


(LaTeX) Abstract:

Precomputed Radiance Transfer allows interactive rendering of objects illuminated by low-frequency environment maps, including self-shadowing and interreflections. The expensive integration of incident lighting is partially precomputed and stored as matrices.

Incorporating anisotropic, glossy BRDFs into precomputed radiance
transfer has been previously shown to be possible, but none of the
previous methods offer real-time performance. We propose a new
method, \textit{matrix radiance transfer}, which significantly
speeds up exit radiance computation and allows anisotropic BRDFs.
We generalize the previous radiance transfer methods to work with a
matrix representation of the BRDF and optimize exit radiance
computation by expressing the exit radiance in a new, directionally
locally supported basis set instead of the spherical harmonics. To
determine exit radiance, our method performs four dot products per
vertex in contrast to previous methods, where a full matrix-vector
multiply is required. Image quality can be controlled by adapting
the number of basis functions. We compress our radiance transfer
matrices through principal component analysis (PCA). We show that it
is possible to render directly from the PCA representation, which
also enables the user to trade interactively between quality and
speed.



Download
Access Level:

Public

Correlation

MPG Unit:

MPI Informatik



MPG Subunit:

Computer Graphics Group

Appearance:

MPII WWW Server, MPII FTP Server, MPG publications list, university publications list, working group publication list, Fachbeirat, VG Wort



BibTeX Entry:

@INPROCEEDINGS{Lehtinen:2003:MRT,
AUTHOR = {Lehtinen, Jaakko and Kautz, Jan},
EDITOR = {Spencer, Stephen N.},
TITLE = {Matrix Radiance Transfer},
BOOKTITLE = {ACM SIGGRAPH 2003 Symposium on Interactive 3D Graphics},
PUBLISHER = {ACM},
YEAR = {2003},
ORGANIZATION = {Association of Computing Machinery (ACM)},
PAGES = {59--64},
ADDRESS = {Monterey, USA},
MONTH = {April},
ISBN = {1-58113-645-5},
}


Entry last modified by Christine Kiesel, 07/01/2009
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Editor(s)
Jan Kautz
Created
03/14/2003 11:34:45 AM
Revisions
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Editor(s)
Christine Kiesel
Christine Kiesel
Jan Kautz
Jan Kautz
Jan Kautz
Edit Dates
07.07.2004 14:53:23
30.06.2004 13:56:35
01/06/2004 05:11:58 AM
05/20/2003 02:03:37 PM
03/14/2003 11:34:45 AM
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