1,186 Reply by joan

(18 replies, posted in Cameras and hardware)

jbrond wrote:

The only thing I am missing in Kinovea 0.8.15 is the option to adjust the exposure. Exposure is important if you want to avoid motion blur in the images. Normally you use the "Video source" (DirectShow programming stuff) to do that. But I dont see the properties for enabling that in kinovea?

Thanks for the feedback on this camera.
Try to use the "Properties" button to access the driver's properties page with the extra settings.

Go to forum: Cameras and hardware

1,187 Reply by joan

(3 replies, posted in Ideas and feature requests)

jon wrote:

- ability to drag and select multiple files in main File Explorer page

Can you elaborate, I'm not sure I understand what you mean with this. Double selection to directly open in dual player mode ?

jon wrote:

- F5 to refresh File Explorer page after deleting/renaming videos in windows.

Maybe this could be automated somehow. For the observational reference menu, we register ourselves to Windows to be notified when there is a change in the folder, so we trigger a rebuild of the menu to reflect the new list of files.
Maybe we could do something similar by registering for changes on the current directory and rebuild the file list upon notification.

(Maybe also consolidate the list in the first post to keep track of those intertwined with discussions)

Go to forum: Ideas and feature requests

1,188 Reply by joan

(20 replies, posted in General)

Chas Tennis wrote:

To double check, does Kinovea use the color information as well as the brightness for tracking?

Sorry, it wasn't clear at all from the first post. Yes, the color information is fully used during the matching.
Black/White will always be better for the matching itself (color and contrast) but color difference alone should help.
Aside from the internal pattern of the marker itself, it could help when using several markers of the same material/shape/brightness. It should help matching the right marker with the right trajectory.

Go to forum: General

1,189 Reply by joan

(1 replies, posted in Bug reports)

Added bug 249 to track this issue.

Go to forum: Bug reports

1,190 Reply by joan

(2 replies, posted in Bug reports)

You are not missing anything, it is a known bug sad
When recording starts, we get frames less frequently than normal. The final file stores the original frequency information, hence the mismatch.
Haven't found any solution yet.

[late edit: this issue should be fixed in 0.8.16]

Go to forum: Bug reports

1,191 Reply by joan

(5 replies, posted in Bug reports)

billrp wrote:

But the .mkv files will need to be converted to .mp4 to be used elsewhere, such as Youtube.

Normally Youtube supports the MKV format without problems. Are there issues ?
Multimedia players like VLC or MPlayer will also support Matroska (MKV) natively. For playback in Windows Media Player or Media Player Classic, you may need to install a third party demuxer.

To export the video with the drawings applied on images (whichever format), you use the 3rd option. (Saving videos).

billrp wrote:

And unfortunately if the video screen is zoomed, that is not saved in the .mkv file.

Yes, that is a problem. I'll add it to the bug tracker.

Go to forum: Bug reports

1,192 Reply by joan

(11 replies, posted in Ideas and feature requests)

Yes, I also thought about that… but I think the most popular ideas will still bubble up.

I would like to keep it super simple, and many applications do work with these "like" systems, even if you can vote for everything (digg, wikio, planets). You will not vote ALL because you know it will devalue the ones that you like more than others.

Even with only a few votes casted it is already interesting. I think it will help a lot.

Go to forum: Ideas and feature requests

1,193 Reply by joan

(5 replies, posted in Bug reports)

It is really intended to contain the analysis data (comments, drawings), not anything else.

There is no concept of projects in the sense that an analysis file would be attached to a video and this link saved in yet another file. If the analysis file (.kva) has the same name as a video file in the same folder it will be loaded when you open the video. This is the way to emulate "projects": simply save the .kva with a similar name as the video (default option).

You can also save the analysis data embedded inside the video while keeping it editable. This arguably removes the need for "projects".
This design is to keep things flexible: you can load any analysis file into any video (File > Load key images data).

Go to forum: Bug reports

1,194 Reply by joan

(5 replies, posted in Bug reports)

Hi,
The .kva files contain the tools and drawings you have added to the video. It is the analysis data.
The dialog under "File > Save" will only have the option to save to .kva when there is something to save. (When you have added some key images and some drawings).

Go to forum: Bug reports

1,195 Reply by joan

(2 replies, posted in Français)

Bonjour,
Merci pour ce retour.

Kaiin wrote:

toutefois j'ai un petit doute sur le temps affiché (en bas, après "position") : j'ai l'impression qu'il s'agit du temps tronqué (enfin la chaîne de caractère tronquée ?).

Vous avez raison, il y a une troncature au lieu d'un arrondi. Je vais corriger ça.
(Je précise pour la version existante que l'erreur maximale due à la troncature est toujours plus petite que la résolution temporelle de la vidéo).

Kaiin wrote:

peut être le logiciel gagnerait il à afficher les millièmes ou à arrondir de façon correcte ?

Les millièmes sont affichés pour les vidéos qui sont en 100 images par secondes ou plus.
Je trouve ça relativement trompeur d'afficher les millièmes sur les autres vidéos. Cela donne une fausse impression de précision alors que la granularité est de plusieurs centièmes. (Par exemple à 25 img/s, on ne peut pas faire mieux que d'aller par pas de 4 centièmes en 4 centièmes).

Kaiin wrote:

(EDIT : je constate la même chose avec le chronomètre. et avec l'option "format des marqueurs" en millisecondes il s'agit encore je pense d'un temps tronqué et non arrondi ? smile

Oui ils utilisent la même fonction de conversion.

Kaiin wrote:

et autre chose quand l'on renseigne 3 chiffres après la virgule dans la config haute vitesse ils disparaissent (avec le bon arrondi) quand l'on revient dans ce menu, mais le réglage semble bien pris en compte à 3 chiffres : cela peut porter à confusion parfois. et le décalage important sur des temps longs si l'on ne règle pas bien ceci)

Hmm, la fenêtre de configuration haute vitesse sert à spécifier le nombre d'images/s lors de la capture quand ce n'est pas le même que celui de la vidéo (typiquement, les caméras qui filment « à 300 images/secondes » et fabriquent des fichiers classiques à 25 ou 30 img/s).
A priori il n'y a jamais besoin de décimales dans cette fenêtre (pas de caméra qui filmeraient à 210,5 img/s).

Il vaut mieux éviter d'utiliser cette option dans un autre contexte. L'information du nb d'images par secondes du fichier est déjà connue à partir des informations lues directement dans le fichier.

Go to forum: Français

1,196 Topic by joan

(11 replies, posted in Ideas and feature requests)

I built a small web application to keep track of all the suggestions, their implementation status, and allow everyone to vote for their favorites.

So go to www.kinovea.org/ideas now and check it out smile
You can "like" the ideas (click on the heart) or suggest new ones.

I will also publish the source code for the web application itself later on. Feedback appreciated.

Go to forum: Ideas and feature requests

1,197 Reply by joan

(7 replies, posted in Ideas and feature requests)

Note:
I have changed the way this list is managed. I now have the entries stored in a proper database and a script to export the bbcode for the forum.
The idea is that at some point I would like this list to become a standalone page, include a voting system, and possibly allow anyone to add ideas directly.

Update on 2011 may 24th.

Removed from list because included in recent releases (up to 0.8.15)
http://www.kinovea.org/images/accept.png - Capture - Explicit file format picker for videos and snapshots.
http://www.kinovea.org/images/accept.png - Capture - More control over naming convention for captured files.
http://www.kinovea.org/images/accept.png - Capture - Save the size and frame rate configuartion selected as preference
http://www.kinovea.org/images/accept.png - Capture - Capture from IP Camera.
http://www.kinovea.org/images/accept.png - Saving - Being able to export the video including the superposed images of the other video.
http://www.kinovea.org/images/accept.png - Drawings - Image tool.
http://www.kinovea.org/images/accept.png - Workspace organization - ToolBar to change views.

Added:
http://www.kinovea.org/images/weather_sun.png - Drawings - Spotlight tool.
http://www.kinovea.org/images/weather_cloudy.png - Drawings - Snap image tool to borders.
http://www.kinovea.org/images/weather_sun.png - Stopwatches - Cadence tool to track the evolution of tempo in cyclic performances (running, swimming, cycling, etc.).
http://www.kinovea.org/images/weather_cloudy.png - Special effects - Anonymizer (detect faces and apply a blur on them).
http://www.kinovea.org/images/weather_cloudy.png - Tracking - Being able to use another track as the origin of coordinates.
http://www.kinovea.org/images/weather_cloudy.png - Tracking - Autotracking spotlight tool.
http://www.kinovea.org/images/weather_cloudy.png - Tracking - Autotracking magnifier.
http://www.kinovea.org/images/weather_cloudy.png - Synchronization - Create a video insert of one video on top of the other, retaining sync and navigation control. Possibly hide the original screen.
http://www.kinovea.org/images/weather_cloudy.png - Synchronization - Send several images from one video to a single frame of the other video as observational references.
http://www.kinovea.org/images/weather_cloudy.png - Synchronization - Support vertical alignement in dual export.
http://www.kinovea.org/images/weather_cloudy.png - Capture - In dual capture, a common controls bar to start recording simultaneously.
http://www.kinovea.org/images/weather_rain.png - Workspace - Support for 4 playback screens.

Go to forum: Ideas and feature requests

1,198 Reply by joan

(20 replies, posted in General)

Thanks for compiling all this. Many interesting things to read !

Regarding point 3 - markers with patterns, I think that yes, a pattern within the marker can improve tracking results.
Nested black and white rings would be the most efficient in my opinion (maximum contrast + not rotation variant).

Go to forum: General

1,199 Reply by joan

(3 replies, posted in Français)

Le fait que la tablette soit sous Windows 7 est un point positif du point de vue compatibilité, mais je ne saurais en dire plus.
Si vous pouvez trouver quelqu'un qui possède la tablette et faire le test, ce serait intéressant.

Go to forum: Français

1,200 Reply by joan

(8 replies, posted in Bug reports)

Follow-up:
With the integration of the update from the FFmpeg library for the next version, these particular files (bug 209, files from skiflyer and haeferl - Samsung camcorders) are now well supported (again).

Go to forum: Bug reports