DSLR Image Burst to Image Sequence frame rate problem

Question

Hi,

A bit of an odd one but I have recieved a bunch of still images taken from a DSLR and the client wants me to stich it together to make it into a video. Not sure why they couldn't just film the scene. I don't even have any info on what the camera setting are. So great start!

Either way, I've imported the 58 stills into After Effect making it a image sequence, setting the comp and interpret setting to be 25fps.

But for some odd reason it plays back super fast and jittery. I'm guessing the jittery look come from the fact that there is zero motion blur or maybe the camera shutter speed wasn't quick enough to capture additional frames (tbh, there is slight jump between frames).

I've tried adding motion blur to the clip, i've played with the different frame blending options, i've tried different field options and still these burst of images are not creating a decent video.

The only way I could get it looking somewhat natural is by setting the framerate to 14.5fps, but still something aint right.

Am I doing something wrong? wondering if anyone can help.

Rick Gerard · Answer

If you don't know the burst rate, you have to guess at it. There is camera movement and subject movement. If you only captured one frame every second and want 25 fps interpreted, there just isn't enough information between frames to recreate the frames you would have if the scene were shot at 25 fps. Frame blending options may help if the original FPS was 12 and the comp frame rate was 25. Here is the workflow for that.

Interpret the original footage at 12 or 14.5 fps and check the duration of the shot. Create a new comp at your desired frame rate (25) that is the same or longer than the image sequence. With the imported image sequence in the normal FPS comp, enable time remapping and drag the last time remapping keyframe to the end of the timeline. Then, experiment with the three different frame blending options in the timeline to see which gives you the best-looking footage.

If you need better results than that, I suggest that you invest in Twixtor. It will do an amazing job of interpreting footage that you are slowing down. If you choose to use Twixtor, apply it to a comp-sized solid and then choose your image sequence as the source in the effects control panel.

No matter what you do, you will not get exactly the same look you would if it were shot as a movie with standard settings, but you should be able to get close.

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