1,336 Reply by joan

(4 replies, posted in Français)

Bonjour,
Pourriez vous récupérer les logs (juste après la tentative) et les envoyer par mail (joan at kinovea point org).
menu Aide > Ouvrir le dossier des logs….

Merci

- Est-ce que vous avez aussi la petite fenêtre d'erreur indiquant qu'aucune caméra n'a été trouvée ?
- Est-ce que vous avez d'autres caméras/webcams connectées sur l'ordi et est-ce que l'une d'entre elle prend la main à la place de la Logitech ?

Normalement, on peut avoir le message "Déconnecté" si la caméra ne répond pas en moins d'1 seconde, mais après, dès qu'elle est opérationnelle, l'image s'affiche et c'est bon…

Go to forum: Français

1,337 Reply by joan

(3 replies, posted in Français)

Bonjour,
Si le caméscope possède bien une sortie FireWire (ce qui n'est quasiment plus le cas des nouveaux caméscopes du commerce, voir aussi l'autre sujet), il est peut-être possible de mettre une carte d'extension FireWire. Pour les PC de bureau on en trouve à pas trop cher (moins de 20€ je pense), pour un portable probablement compter un peu plus…

Malheureusement le FireWire disparait sans remplacement, c'est vraiment frustrant sad

Go to forum: Français

1,338 Reply by joan

(5 replies, posted in Français)

Bonjour,

gilles wrote:

J'ai capturé avec la WebCam intégrée mais l'image est inversée (tête en bas) avec souvent un problème dans le bas de l'image (illisible).

Bizarre… C'est la première fois que ce type de problème est remonté… Est-ce que vous avez la possibilité de tester dans un autre logiciel ?

gilles wrote:

Sinon à quoi correspond dans les sources "Cirrus Logic USB-DVR2 Source" ?

Ça, il y a une autre personne qui en a parlé. Il me semble que c'est un logiciel qui installe ce driver.
D'ailleurs d'après d'autres forums il semble qu'il puisse causer des interférences, si ça se trouve c'est ça qui cause le problème d'affichage sur la webcam intégrée…

gilles wrote:

Si je branche un caméscope HD à disque dur (et/ou carte) sur le port USB je n'arrive pas à voir ou capturer la vidéo sur l'ordinateur. A priori c'est impossible comme la vidéo n'est pas en streaming si j'ai bien compris. Peut-on contourner le problème ? Il y a bien des webcams même HD avec possibilité de les mettre sur trépied mais le GROS problème c'est que, à priori, on ne peut pas zoomer en filmant.

Vous avez bien résumé tout le problème de ces dernières années ! Les constructeurs de caméscopes délaissent le FireWire alors que c'était la seule connectique qui permettait de transmettre en live vers le PC…

La solution (en dehors des caméscopes HDV qui ont toujours le connecteur FireWire et les webcams HD) semble passer par le cable de sortie HDMI du caméscope et une carte (ou un boitier autonome) pour faire entrer le HDMI dans le PC et le re-numériser au passage.
Il y a un utilisateur sur la partie anglophone du forum qui utilise ce modèle, MAIS il semble que cela bug si on utilise la fonction d'enregistrement pendant la capture. Donc pour l'instant je ne peux pas vraiment conseiller ce genre d'investissement… (sujet)
En tout cas, en attendant un remplaçant hypothétique au FireWire, cela risque être une des seules solutions pour les caméscopes de type disque dur ou DVD.

gilles wrote:

J'ai vu que la lecture des fichiers MTS n'est pas fluide même avec une configuration musclée mais bravo pour toutes les améliorations et la réactivité.

Merci smile
Pour les fichiers MTS il est toujours possible de les transcoder vers un format plus coulant, mais c'est sûr que ce n'est pas vraiment une solution satisfaisante…

Go to forum: Français

1,339 Reply by joan

(5 replies, posted in Bug reports)

I've had somewhat similar issues actually, but not completely preventing the use of the camera…
The PS3Eye has this particular behavior that even if the webcam is not plugged in, it will answer as if it is and display the "No camera found" image.

Probably the issue has appeared with the auto reconnect mechanism. Your Sony Motion Eye might need a bit of time to connect (more than 1 second) such as it is initially considered "Disconnected" (Do you see this message ?), and Kinovea try to pick up the first available camera, which would be the PS3Eye.
I'll see if the reconnect mechanics can favor the camera that was actually connected.

PS: I'll delete the duplicate message in the other subforum.
PS2: I'm away from computer for the next week.

Go to forum: Bug reports

1,340 Reply by joan

(4 replies, posted in Bug reports)

Sorry, there's no estimated time frame for audio support.
It is on my own wish list as a feature, but currently other improvements have priority.

Go to forum: Bug reports

1,341 Reply by joan

(2 replies, posted in Ideas and feature requests)

(I can't comment on the mechanics of your serve or on tennis in general, hopefully someone more knowledgeable will chime in smile)

Indeed rotations are an extremely important part of almost all sports, so measuring angular speed would be super interesting in many contexts !

But as you point, the center of rotation is also moving, which makes things complicated.
Also, the rotation axis has to be exactly perpendicular to the image plane otherwise there is a bias due to perspective.

Technically… The first step would be to implement the "relative origin" for the tracking tool (coordinates of one tracked point expressed relatively to another tracked point).
Then we can probably figure out the maths to compute the angle change between successive images.

Speaking of baseball, rotations and angular speeds, the guys at DrivelineBaseball are apparently trying to hack a WiiMote to retrieve accurate rotation data. Sounds like a cool project !

Go to forum: Ideas and feature requests

1,342 Reply by joan

(17 replies, posted in Ideas and feature requests)

Ollie wrote:

I really like the idea of having the spotlight feature combined with tracking, this would be ideal for highlighting a specific player and show their good/bad techniques. This is the one feature I cannot seem to be able to find in any video editing software (besides the mega bucks versions)

Actually I'm not even sure this feature exists anywhere, even in the mega bucks version as you say smile
Many video analysis packages don't even have an equivalent to a spotlight tool, let alone an auto tracking one… (I don't know about all the applications and their features, so please let me know if you know about an existing implementation, it's always interesting).

Ollie wrote:

that is easily implemented.

Well I expect some sort of complications, tracking from 2D imagery is not that straightforward wink
Can you try the existing tracking feature in your scenario ? Try to attach it to a player and see how long it can successfully track him. What is the most common case of failure ?

Go to forum: Ideas and feature requests

1,343 Reply by joan

(20 replies, posted in General)

Hi,
This should be covered by the observational reference feature.
Image > Observational Reference > Import image… Choose your logo, position it, adjust opacity, and you're set smile

Go to forum: General

1,344 Reply by joan

(6 replies, posted in General)

Thanks smile
Nobody is on Swedish. Someone had volunteered last year but didn't answer afterwards.

Go to forum: General

1,345 Topic by joan

(6 replies, posted in General)

OK, the new features and improvements over 0.8.7 are now pretty stable and mature enough for prime time smile
The current cycle will be mostly focused on updating translations, user manual and bug fixing.

Translating Kinovea is about as simple as downloading a spreadsheet and filling in the gaps. (learn more on this page).
If you start a new language please post in this thread indicating which language you are starting to work on.

Here is a list of locales for which maintainers have recently confirmed (list will be updated continuously).
- Dutch (pstrikwerda)
- German (peusi)
- Italian (giobia)
- Portuguese (Fernando)
- Romanian (bogdan)
- Greek (swordfish)
- Turkish (Eray)
- Chinese (nicko)
- Finnish (Alexander)

A Polish speaking contributor is needed to update the Polish locale (currently 52% complete).

And welcome to the new locales !
- Lithuanian (Mindaugas)
- Swedish (Alexander)

The most wanted list cool :
(Languages not already in Kinovea, sorted by number of visitors of on the website (based on country of origin))
1. Japanese
2. Russian
[s]3. Swedish[/s]
4. Arabic
5. Korean

Thanks for your help !
tongue

Go to forum: General

1,346 Reply by joan

(3 replies, posted in Cameras and hardware)

Interesting experiment smile
(Disclaimer, the following is just guess, as I don't have an iPod and I haven't checked how its web server or camera works…)

First of all, I think you need to look for the actual stream (video or constantly overwriting image) address, not the web server's.
When your browser connects to the web server it is probably processing a web page embedding the stream, but if you want it to work in Kinovea you want the raw stream address directly.
(The URL should end with a script's name + parameters, or directly the stream file. With just the server's address, it means we are defaulting to something like index.html which would then contain the actual call to the script or file. Kinovea cannot parse the HTML to extract the camera URL).

Secondly, the stream must be MJPEG or JPEG, as they are the only IP camera streams supported in Kinovea. If it's H.264 or something else, it will not work. (If WebcamXP support the format you might use it as a "man in the middle" : you connect it to the stream, and then connect Kinovea to it).

Let us know about what you find !

Go to forum: Cameras and hardware

1,347 Reply by joan

(17 replies, posted in Ideas and feature requests)

Oh yes, I had forgotten about that one.
The value should be in seconds also, instead of number of frames…

Suggestions are not viewed as complaints. Constructive criticism is always appreciated. And thanks for the heads up wink
I think I'll just bump it up to something like 200/300 frames, and switch to seconds in a later stage. (I'm actually using a modified version with exactly this change to create the example videos smile)

By the way, people have noted that the persistence concept and interface could be improved in terms of usability. If anyone has a solution that would be better than the current one, feel free to propose. I've had thoughts about a sort of manipulable curve that would symbolize the amount of opacity relative to time, but that would probably make things even more complicated.

Go to forum: Ideas and feature requests

1,348 Reply by joan

(20 replies, posted in General)

Great smile
The ability to provide the [username:password] as inline information in the URL will be supported in the next version anyway tongue

Go to forum: General

1,349 Reply by joan

(2 replies, posted in Bug reports)

I also experienced a lot of crashes with it today. The driver seems to keep a record of previously entered addresses and it somehow fallback to old addresses for some reasons.

It would appear that when the address is not reacheable or errors out, crashes occur almost instantly. It becomes very hard to do anything when this driver is the first tried sad
The code needs to be made more robust in this area so it is at least possible to change the source !

Go to forum: Bug reports

1,350 Reply by joan

(20 replies, posted in General)

I tried with this public camera : http://59.124.49.36:60013
(login:guest, password:guest, stream is MJPEG)

Apparently all their cameras need login/password (?)
In Firefox for example, in order to retrieve the raw images, (provided the login/pass was not saved previously or has been cleaned up), I had to use the following URL:
http://guest:guest@59.124.49.36:60013/getimage?camera=1&fmt=sif
Otherwise I get a 401 error.
(This will not work as is in Kinovea, the login/pass have to be specified differently, and currently it's not possible…)

Go to forum: General