Abstract

We address the problem of high-quality image capture of fast-moving ob jects in moderate light environments. In such cases, the use of a traditional shutter is known to yield non-invertible motion blur due to the loss of certain spatial frequencies. We extend the flutter shut- ter method of Raskar et al. to fast-moving ob jects by first demonstrating that no coded exposure sequence yields an invertible point spread func- tion for all velocities. Based on this, we argue that the shutter sequence must be dependent on ob ject velocity, and propose a method for com- puting such velocity-dependent sequences. We demonstrate improved im- age quality from velocity-dependent sequences on fast-moving ob jects, as compared to sequences found using the existing sampling method.