License plate from blurred photo taken with a 'Flutter Shutter Camera'



This example shows a potential application of our camera that flutteres the shutter open and closed in a carefully chosen binary sequence. The binary sequence has a broadband frequency response (similar to binary sequences used in astronomy and audio analysis). The fluttering preserves high spatial frequencies, improving invertibility and hence the corresponding deblurring becomes a well-posed problem.

Matlab Code

Complete Matlab Code and Images


Single Photo of a Speeding Car  (Exposure Time: 50 ms)



Cutout of the photo


What is the make of this car ?
What is the license plate number?
[Click here for answer]



More about 'Flutter Shutter Camera'

Paper at Siggraph 2006:
Coded Exposure Photography: Motion Deblurring using Fluttered Shutter
Ramesh Raskar, Amit Agrawal, and Jack Tumblin
ACM SIGGRAPH 2006


Coded Aperture Imaging



Related Papers:

Resolving Objects at Higher Resolution from a Single Motion-Blurred Image, CVPR 2007
Dappled Photography: Mask Enahnced Cameras for Heterodyned Light Fields and Coded Aperture Refocusing, SIGGRAPH 2007