A smartphone application for removing handshake blur and compensating rolling shutter

Smartphones are now widely used as photographic devices. Equipped with cheap cameras they are prone to many degradations, most notably handshake in combination with rolling shutter causes severe space-variant blur. Removing blur without any information about the camera motion is a computationally demanding and unstable process. We use built-in gyroscopes to record the motion trajectory of the camera during exposure and then remove blur from the acquired photograph based on the reconstructed trajectory. The proposed deblurring application is implemented on Android smartphones with close-to-real-time performance.