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7. Why is the speed of my video slowing down by itself?
The speed slider is forced down when the original frame rate of the video cannot be sustained by the player.
You can't disable it at the moment. It should never get down to 0% though. The player is constantly monitoring how long it takes to display the video and drops frames when it can't keep up, and this is triggered when too many frames are dropped. I'll consider adding a different option where it just keeps dropping the frames so instead of a slow down you will see jump cuts.
Can you tell more about the resolution and frame rate of the video?
No se exactamente a que te refieres pero no hay manera de instalar Kinovea directamente en un Mac, es un programa Windows. Dónde viste este mensaje exactamente?
It is not a known issue. I will try to reproduce it. What version are you using?
If you are running from source then the folders to change are under /Tools/DrawingTools. They are copied to the output directory during build.
Hopefully someone with more hands on experience can come along.
A smartphone setup is different. To capture high speed footage with a smartphone you must use the smartphone itself for capture. When the smartphone does high speed it records to its onboard memory and then transfer it to its own storage. Then you have to transfer from that storage to a file on your PC. If you can somehow have access to the phone storage from the PC then it can be a time effective option. Capturing a smartphone camera feed from Kinovea capture module is not going to deliver the same performance as machine vision cameras.
Maybe someone else has a different take on this but in my opinion rolling shutter in human activities is mainly a concern for the objects we use, implements, balls, etc. because they can move much faster than the human body itself. Body segment movement under the athlete own force isn't very fast in the grand scheme of things. This is also true for frame rate in my opinion, you don't really get more information from a 2000 fps than a 1000 fps one when looking at body segments, we can't produce the kind of acceleration that would make a difference. (Not true for the objects we throw or the tip of things we hold though). Rolling shutter is directional, if you know the maximum extent of motion expected you can orient the camera to minimize it.
Hi,
Just to be on the same page this screenshot is from a very old version.
To change the toolbar you don't need to change the source code. The toolbars for the player and the capture screen are defined in XML files that are in the program files directory (installation directory), under DrawingTools/Toolbars/player.xml an capture.xml.
In there you will see things like `<entry name="Line">` and `<subentry name="Polyline" />`. When Kinovea starts it will read this file and build the tool hierarchy from it by searching for tools by name. The `name` property corresponds to the Name field in a drawing XML file stored under DrawingTools/Standard or DrawingTools/Custom.
It's mostly machine vision cameras that are specified like this, they give the frame rate for the max resolution of the sensor but if you lower the number of lines it can actually go faster. When you do this the frame rate slider in the camera settings in Kinovea should have a wider range. For some camera types you have to click a button to refresh the slider range.
Since you are recording a high speed camera the resulting video plays back in slow motion. In your case at 10% of the original action (30/300).
Are you saying that the speed slider resets itself to be in the middle when you open a new video and you have to manually slide it right to 20% or is it something else? What version are you using?
Salut,
Le code qui implémente ça est ici: Butterworth.cs
Et le truc qui appelle cette classe est ici: FilteredTrajectory.cs#L134
En espérant que ça aide
Couldn't process file <file> due to its being in the Internet or Restricted zone or having the mark of the web on the file.
Assuming you downloaded a .zip archive of the source code. Windows marked it as being from the Internet and put some restrictions on it. You should either use a git client and do a `clone` to get the source code, or remove the "mark of the web" from the .zip file before unpacking it. I personally use "Git Extensions" as git client.
If you want to record yourself while you are doing the analysis, it is not possible within Kinovea, you will have to use an external screen casting software like OBS and record the window.
You are probably looking for Kinovea/Kinovea.ScreenManager/Measurement/Plotting/FormMultiTrajectoryAnalysis.cs > GetCSV()
https://github.com/Kinovea/Kinovea/blob … is.cs#L524
Although you can also look at the "transpose" function of the target spreadsheet application, this should be simpler to work out. See here for Excel for example: https://support.microsoft.com/en-us/off … f862209744
What about the "Arm capture trigger" button in the capture tool bar? There is also a colored band above the screen, it should be green. If it's blue it means audio trigger is disarmed. This arm/disarm mechanism was added on top of the audio trigger to avoid unwanted recordings.
Kinogram is only available when the whole video section is cached in memory so you have to either increase the memory cache from the preferences or make the selection shorter.
It should be OK to install on top, hopefully it will retain the preferences. Let me know if it doesn't work as expected I haven't tested this in a while. You can also use the .zip version and keep both in separate directories.
Posts found: 181 to 195 of 1,981
