TY - GEN
T1 - Table-top computed lighting for practical digital photography
AU - Mohan, Ankit
AU - Tumblin, Jack
AU - Bodenheimer, Bobby
AU - Grimm, Cindy
AU - Bailey, Reynold
N1 - Funding Information:
We would like to thank the computer graphics group at Northwestern University for their support and feedback and the anonymous reviewers for their helpful comments and suggestions. Thanks to Jingjing Meng and Xing Hu for help in early stages of the project, Kelli Johnson and Nathan Mat-suda for help with the construction of the enclosure, Vincent Masselus and Amy Gooch for help with Figure 2, and Hol-ger Winnemöller for help with the video. This research was funded in part by NSF grants 0238062 and 0237621.
PY - 2006/7/30
Y1 - 2006/7/30
N2 - We apply simplified image-based lighting methods to reduce the equipment, cost, time, and specialized skills required for high-quality photographic lighting of desktop-sized static objects such as museum artifacts. We place the object and a computer-steered moving-head spotlight inside a simple foam-core enclosure, and use a camera to quickly record low-resolution photos as the light scans the box interior. Optimization guided by interactive user sketching selects a small set of frames whose weighted sum best matches the target image. The system then repeats the lighting used in each of these frames, and constructs a high resolution result from re-photographed basis images. Unlike previous image-based relighting efforts, our method requires only one light source, yet can achieve high resolution light positioning to avoid multiple sharp shadows. A reduced version uses only a hand-held light, and may be suitable for battery-powered, field photography equipment that fits in a backpack.
AB - We apply simplified image-based lighting methods to reduce the equipment, cost, time, and specialized skills required for high-quality photographic lighting of desktop-sized static objects such as museum artifacts. We place the object and a computer-steered moving-head spotlight inside a simple foam-core enclosure, and use a camera to quickly record low-resolution photos as the light scans the box interior. Optimization guided by interactive user sketching selects a small set of frames whose weighted sum best matches the target image. The system then repeats the lighting used in each of these frames, and constructs a high resolution result from re-photographed basis images. Unlike previous image-based relighting efforts, our method requires only one light source, yet can achieve high resolution light positioning to avoid multiple sharp shadows. A reduced version uses only a hand-held light, and may be suitable for battery-powered, field photography equipment that fits in a backpack.
UR - http://www.scopus.com/inward/record.url?scp=85027879602&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85027879602&partnerID=8YFLogxK
U2 - 10.1145/1185657.1185742
DO - 10.1145/1185657.1185742
M3 - Conference contribution
AN - SCOPUS:85027879602
T3 - SIGGRAPH 2006 - ACM SIGGRAPH 2006 Courses
BT - SIGGRAPH 2006 - ACM SIGGRAPH 2006 Courses
PB - Association for Computing Machinery, Inc
T2 - 2006 ACM SIGGRAPH Courses, SIGGRAPH 2006
Y2 - 30 July 2006 through 3 August 2006
ER -