How do I use an image sequence?

This article explains how to import, load and play an image sequence or video stream in REFLEKT ONE Sync.



In the Test & Adapt mode you can use an image sequence or video stream you have recorded via the Analyze & Record features or an already existing one in order to test its accuracy in relation to the model and its settings.  

NOTE: If you want to use a video which was not recorded in REFLEKT ONE Sync, you have to convert it into image sequences first. For more information read the article here.


Sync_test adapt_image sequence




To use an image sequence, you have two options:

  • You can add a source (image sequence) from your computer and then select this source for import. 
  • You can select a source like the internal camera of your device, record a new sequence via the Analyze & Record mode inside the app or select one you already have recorded/added as source for import.



1. Click the Visual input panel (Image Sequence field). 

2. Choose Add Source.

Sync_image sequence_add source

3. Enter a name for the import. 

Sync_image sequence_input name

4. Click Import from folder and choose the folder which contains the image sequence (only .jpg files). 


  • The size of JPGs needs to be 1280x720 px.
  • For more information about how to convert videos into image sequences, read the article here.

5. Hit the Import Sequence button.

Sync_image sequence_import

Now the image sequence has been added to the Select Input panel.

6. Continue with the steps below from the Select Source section.



1. Click the Visual input panel (Image Sequence). 

2. Choose Select Source

Sync_image sequence_select source

3. Then either select the internal camera as input device or select an already existing image sequence to test the tracking. 

NOTE: Existing image sequences on mobile devices (iOS) can be shared in the Test & Adapt mode.




To load and play the image sequence, you can use the appropriate buttons in the Visual Input panel.

Sync_visual input panel

  • With the play button you can play the image sequence and pause it at any time to make setting changes to a certain frame.
  • With the skip button you can jump to the next frame
  • With the stop button you can stop the current image sequence.