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Hello,
Currently there is no way to work around this kind of perspective issues.

Maybe later, when line tracking is in place, we could define a calibration segment and programmatically force it to keep the same size in pixels over the course of the video, by resizing the whole image around it… The range of applications of this would need to be assessed though. If someone can think of other scenario where this may be of interest ?
Thanks

Bonjour,
Deux tests possible pour avancer dans le diagnostic:
- Tester la détection de la caméra par le logiciel sur un Windows 7 classique (hors bootcamp).
- Tester la détection des périphériques FireWire sur le Windows7+Bootcamp en dehors de Kinovea. (Autre logiciel de capture, disque dur connecté en FW, etc.)
Un logiciel tout simple pour tester le lien entre la caméra et le système : WinDV

Hi,
Unless you have very high speed camera with more than 1000 frames per second, I think the limiting factor is the framerate of the video file (or the capabilities of the capture device).
When you shoot with a regular camera at, say 50 fps, the time resolution is 20ms. Each image is separated from the next one by this ammount, and you cannot get more accurate than that. Every timing you do can only be a multiple of this fundamental unit.

In that regard, displaying hundredth of seconds is already sometimes misleading, as the time measurements are really only as accurate as the frame rate. (In an early version, the last unit of the timecode display was the number of frames, which is more right, but less useful).
We could display microseconds, nanoseconds, but it will not be more accurate, just more misleading in my opinion.

There are cameras with more than 1000 fps though, I don't remember if this is nicely supported (up to 999fps should definitely be ok). I don't think 10000 fps capable device can be used for timing people (outside photofinish hardware that is).

Hi,
Sorry for the delay. Would you be able to send a small sample ?
I'd like to try to reproduce and see what happens internally.
Is it in Full HD image size ? It is possible that the file is too CPU demanding for the current version. When the images can't be decoded + displayed fast enough, the speed slider is automatically slid to the left to try to mitigate the jerkiness.
Thanks

Une méthode est d'utiliser le mode d'affichage « Un écran de capture et un écran de lecture ».
Après l'enregistrement d'une séquence, faire un glisser-déposer de la miniature générée côté écran de capture vers l'écran de lecture. Cela ouvrira la séquence enregistrée avec tous les contrôles de lecture habituels.

Si vous avez une idée précise n'hésitez pas. Si possible en décrivant l'interaction avec le logiciel et le résultat souhaité (je n'ai pas Dartfish sous la main, et de toutes façons faire une copie de fonction serait une mauvaise stratégie, il faut comprendre ce qui est intéressant à proposer, pourquoi, etc. )

Il pourrait être possible d'intégrer des boutons de lecture directement dans l'écran de capture (c'est ce qui était prévu au départ) mais je crois qu'il serait bien d'avoir une idée des cas concret d'utilisation pour pouvoir organiser les fonctionnalités au mieux.

Hi,
The feature has been added in one of the experimental version. You can get the lastest at the top of this sub forum.
The "dual save" button is in the lower right corner, next to the common position slider.
Please report success or failure, as someone has reported an issue with the function here.

Hi,
There is still much work to do in the player itself and limited resources, so the perimeter of the application has to be focused.

I understand how important it might be in your workflow but the ammount of work and the shift in the software focus has to be balanced against the number of persons needing this integrated in the player (as opposed to using a third party application).

I'd rather see Kinovea develop as a player with great analysis capabilities, rather than a file management system.

Since working with files is probably something completely independant, maybe you can find a management system that suits you and just use Kinovea to play the files.
If this external management system is open in its interfaces, maybe we can work out a way to display its data from within Kinovea, or even interact with these.

Thanks for your understanding. Do not hesitate to report your findings regarding these dedicated management systems.