DMCA
Coded Exposure Photography: Motion Deblurring using a Fluttered Shutter
Cached
Download Links
| Venue: | In Proceedings of SIGGRAPH 2006 |
| Citations: | 162 - 22 self |
BibTeX
@INPROCEEDINGS{Raskar_codedexposure,
author = {Ramesh Raskar and Amit Agrawal and Jack Tumblin and Ramesh Raskar and Amit Agrawal and Jack Tumblin},
title = {Coded Exposure Photography: Motion Deblurring using a Fluttered Shutter},
booktitle = {In Proceedings of SIGGRAPH 2006},
year = {}
}
Share
 |
 |
 |
 |
||
OpenURL
Abstract
In a conventional single-exposure photograph, moving objects or moving cameras cause motion blur. The exposure time defines a temporal box filter that smears the moving object across the image by convolution. This box filter destroys important high-frequency spatial details so that deblurring via deconvolution becomes an illposed problem. Rather than leaving the shutter open for the entire exposure duration, we ¨flutter¨the camera´s shutter open and closed during the chosen exposure time with a binary pseudo-random sequence. The flutter changes the box filter to a broad-band filter that preserves high-frequency spatial details in the blurred image and the corresponding deconvolution becomes a well-posed problem. We demonstrate that manually-specified point spread functions are sufficient for several challenging cases of motion-blur removal including extremely large motions, textured backgrounds and partial occluders. ACM Transactions o Graphics (TOG)
Keyphrases
fluttered shutter exposure photography box filter well-posed problem camera shutter temporal box filter binary pseudo-random sequence blurred image high-frequency spatial detail partial occluders exposure time important high-frequency spatial detail motion-blur removal acm transaction conventional single-exposure photograph several challenging case manually-specified point spread function motion blur illposed problem large motion entire exposure duration corresponding deconvolution broad-band filter chosen exposure time
