Stitching creates blur on invisible parts

[PlugNPush]

Hi Will, I am doing some testing with your project for a school project. You probably stopped developing it, but I was wondering if you could give me a clue about why the invisible images get blurred the more the process continues, and how it could be fixed if you know?

Attached is a picture of Frame 935 (example), that illustrates the issue:

[WillBrennan]

Hey!

This project doesn't account for radial distortion from the camera. When you stitch a lot of frames together it causes this blurring pattern.

You can either remove radial distortion before you process the images or use less images. I hope that helps!