Ricoh Theta X video stitching

Hello everyone,

I have a question regarding video stitching on the Ricoh Theta X camera. As I understand it, the camera automatically stitches the video, so no additional processing is required, and the output file is immediately in MP4 format. I recorded 4K video at 30fps, but the stitching quality turned out to be very poor. The topbottomcorrection parameter was enabled.

Is it possible to improve the stitching? If it can be improved, what tools or applications should I use? Preferably for macOS, but Windows solutions are also welcome. This video is very important, and I would appreciate any help. Also, what settings should be used in the future to avoid such issues? The firmware version is the latest, 2.51.0.

Thank you.

Can you post a screenshot of the portion of the video that is poor quality?

  • I will ask someone I know if the stitching is more precise when the desktop app is used
  • have you tried with the desktop app above? (macOS and Windows available)

There is no example code to stitch the video, but there is lens characteristic information below.

theta-api-specs/theta-lens at main · ricohapi/theta-api-specs · GitHub

To turn off videoStitching and record as dual-fisheye video, you can try this:

theta-api-specs/theta-web-api-v2.1/options/ at main · ricohapi/theta-api-specs · GitHub

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I recorded some video footage for personal use during my vacation, just as an amateur. I used the standard application on macOS, but it simply opens the video without any stitching functions.

Снимок экрана 2024-06-19 в 16.56.15

For the stitching test of the video, was the input video in dual-fisheye?

This won’t help for the current video, but it may help for future videos.

I did not stitch the video myself. I didn’t even use the application during recording. I simply took the camera, set the video quality through the screen, and started recording. Then, I just transferred the video from the camera to my computer and got this result. Most likely, the video was immediately in MP4 format, and I did not perform any manipulations with it.

do you have the same problem if you use a different THETA X? The lens of your THETA X may be out of alignment. I shared your screenshots with a technical expert on the THETA. He suggested that there may possibly be a lens problem.

Unfortunately, we do not have another Ricoh Theta X camera to test with. Nevertheless, thank you for your help. In our professional work, we primarily need the camera for photos, and it performs well for that purpose.

If the camera performs well for still images, it is likely not a lens alignment problem.

Does the stitching problem appear only at the beginning and end of the video? Or, does this problem persist across the full length of the video.

How long is the video?

The video is about 4 minutes long, and the stitching problem persists throughout the entire video.

Can you post the full video somewhere and send me the link? For example, put it on Google drive and DM me the link?

I’ll review it with some people who are familiar with the camera.