GooderVideo. How SteadyHand Works. Step1: Find all Motion

…make your good video even Gooder^™

How SteadyHand Works: Step 1:

Find all the motion in a video

Steady fixes a video in a series of automatic steps:

Find all the motion in a video
Separate out camera-motion from action within the scene
Break the camera-motion into components
Calculate a simulated professional camera movement
Adjust the frames by the difference between the actual and desired camera movement
Clean up the edges.

Steady processing starts with the PelKinetics engine to examine each frame of your video to calculate out where each and every pixel is moving. PelKinetics is an award-winning 3^rd generation optic flow motion detector.

The graphic below uses arrows to show the direction and speed (length of arrows) of some pixels in a frame. Of course, the arrows don’t show all the pixels. If we drew them all, the image would be solid black, even for videos taken on phones and lower-resolution, more portable methods of filming live-action events.

A casual examination of the arrows shows some interesting patterns. It’s clear that the arrows in the center are showing that the tennis player is moving down and to his right (left in the frame).

We can also see that most of the frame has arrows moving left to right. From this, we might guess that the camera is moving to the left making it seem that the crowd is moving right.

Those who are more observant might notice that the arrows don’t all seem to be going in the same direction – they seem to be bent away from the center. What might cause this? Keep reading.