Dear joan,
thank you very much for the new features and this wonderful piece of software, once again!
Will use 0.8.25 from now on and report any issues if present.
Have a nice day,
everyone!
16 2016-08-25 13:46:03
Re: Experimental version - 0.8.25 (44 replies, posted in General)
17 2016-03-22 11:12:25
Re: Experimental version - 0.8.24 (28 replies, posted in General)
Yes, definetively!
THX for your reply
cheers
18 2016-03-21 16:25:44
Re: Experimental version - 0.8.24 (28 replies, posted in General)
Dear Joan,
dear community,
is there any possibility to save / preset the settings (i.e. object and search window size, color, label) of the extremely valueable path tracking tool (in the "configure trajectory tool" options)?
Have I missed a workaround stated somewhere?
Thanks a lot in advance!
19 2015-03-09 10:04:11
Re: Live capturing via GoPro 3 (12 replies, posted in Cameras and hardware)
OR:
see here for how-to http://wiki.ipisoft.com/Cameras_and_accessories
this is an option to record with iPi-Recorder V2, up to 4 cams simultaneously. Then, use the export option in the software & analyse via Kinovea.
This way around you can avoid the trial&error with 2 cams on Kinovea, expand to 4 cams for recording (but 60Hz only).
20 2015-03-09 09:58:41
Re: Live capturing via GoPro 3 (12 replies, posted in Cameras and hardware)
Use 2 PS3 Eye Cams with Kinovea:
• Start Kinovea & plug in1 PS3eye camera to a USB port
• From the "View" tab, select "Two capture screens"
• On the left capture screen, under Select Source, choose "PS3Eye camera" (the cameras view becomes active)
• Plug in the 2nd PS3Eye camera into another USB port (NOT on the same USB Controller)
• On the right capture screen, under Select Source, choose "PS3Eye camera" again (the cameras view becomes active)
• RECORD
You might have to figure out which port has to be connected first!
21 2015-02-10 16:56:38
Re: Live capturing via GoPro 3 (12 replies, posted in Cameras and hardware)
Hi there,
Joan opened a topic on distortion & how to handle it here (just in case you haven't seen it yet):
http://www.kinovea.org/en/forum/viewtopic.php?id=730
I checked my 4 PSeye cams, they had different distortion coefficients but I really had no time to prepare the calibration files as I intended to do. However, the distortion of their lenses is present rather only in the corners, not in the middle of the picture.
For the analysis of the angles i.e. during running, I place all the cams in the way that my object of interest is aligned with their center.
First, the record of an rectangular object of known height&length&width is always performed, which enables me to use the perspective grid & calibrate for all following records. And yes, my recording distance is also 1.5m to 2.5m.
@Joan:
thank you for the hint, looks indeed very promising. Very curious about your opinion on this cam!
best regards,
22 2015-02-05 13:59:25
Re: Live capturing via GoPro 3 (12 replies, posted in Cameras and hardware)
totally agree on your last point.
as I wrote in another topic, there is a way to record up to 4 PSeye cams simultaneously via 3rd party soft in raw format.
having 2 usb2.0 controllers on board or buying a usb3.0 expresscard let me cope with the incoming data, but HDD is the bottleneck now due to limitations in writing speed. SDD solves the problem but requires some additional investments.
when I imagine the amount of data in higher resolution coming from more than one cam @ say 100fps...whoooha.
found some USB3.0 cams with higher resolution here, but the price hurts indeed:
http://www.allsportsystems.com/store_im … 80camstore
23 2015-02-05 10:13:00
Re: Live capturing via GoPro 3 (12 replies, posted in Cameras and hardware)
Hi slim_n_trim, joan,
sorry to join your discussion here, but I was also quite interested in using GoPro live stream with Kinovea some time ago.
Since I did not find a way to get it running, was short on timie & had to meet the criteria:
a) USB connection
b) > 60Hz
c) rec distance 1.5 - 2.5 meters
d) at least 640x480 pixel resolution
I ended up using PlayStation Eye cams.
If you can live with this low resolution, why not using it?
Priced < 15,-€ it is the only cam I am aware of that can give you 75fps via USB2.0 and, depending on light conditions, nice records.
If there is a cam on the market with USB & higher resolution @ >60fps that I have failed to notice:
please, please give me a sign! ;-)
regards
24 2015-01-14 17:19:08
Re: Exporting Angle Tracking (6 replies, posted in General)
1st: Use the tracking tool
2nd: Export to xml
3rd: Calculate as shown here:
http://www.mathworks.com/matlabcentral/ … -in-matlab
works fine.
I know it's matlab, but it's all about the principle ;-)
cheers
25 2014-11-27 10:48:37
Re: Let's tackle lens distortion (9 replies, posted in General)
Thanks a lot,
will do so asap for PS3Eye (have 4 of them, so will do the unit calibration results comparison) and the Microsoft Cinema LifeCam.
Just a hint for those trying to record two or more PS3Eye cams simultaneously:
With Kinovea, there are workarounds how to get 2 cams working at the same time that can be found here in the forum. It works.
By chance, I came across a freeware soft called "iPi Recorder 2" that enables you to record 4 PS3Eye cams with 60Hz simultaneously.
To analyse with Kinovea, you can export/import the files & have some nice records perfectly synchronized. The whole thing might be worth a separate topic.
best regards
26 2014-11-26 17:43:56
Re: Experimental version - 0.8.23 (2 replies, posted in General)
Dear joan,
thanks once again for the new version!
My observations (maybe erroneous due to beginner state?) with V.0.8.23:
1. Export to XML worked fine for a) path tracking & b) angle to horizontal (but just 1 measurement).
2. Export to XML worked NOT for a) Goniometer b) angle to vertical c) angle d) marker (but data analysis with scatter plot was fine).
addendum: figured out that the "angle" export issue is likely due to missing labels - the first (or last?) angle measurement is taken into account when exporting to XML -> is that correct?
3. Saving video without renaming (overwrite) as .mkv caused Kinovea crash & loss of video - haven't tried with other formats.
Will try out more tools & features later. ;-)
Actually, I am about to create a report template and was therefore looking for possible ways of populating different graphs with data. It is not the first time this idea is being proposed here I guess, but once the XML report gives you tagged data (i.e. for different named angles), the creation of automated, personalized feedbacks is brought to live easily. This is why I was wondering if there is a way to add the "configuration"-option on the right-click for angles - containing the "Label" field.
addendum: Actually, with some vector mathematics the reconstruction of angles is possible by exporting the x,y-data with the path tracking tool already. (Used Matlab for it & am quite sure that it should be possible with VBA or other progs too). But I love the idea of getting all of it done within Kinovea.
Thanks in advance for your answers,
regards
27 2014-11-26 15:30:23
Re: Let's tackle lens distortion (9 replies, posted in General)
joan,
first of all congratulations & big big THANK YOU! for this wonderful software.
I'd write more superlatives, but let's go back to the main subject:
1. I completed the lens distortion calibration for a PS3Eye, worked like a charm.
2. You wrote above that this is a "one-time-per-camera operation". So no additional savings as .kva are required? Imagine, I would like to analyse the records on another PCs - another calibration required, or can I export (somehow) to .xml & import to proceed? You wrote that you were importing the distortion coefficients - how, with the mentioned Agisoft software or using Kinovea? Maybe, the community members who have done it for their cams can upload those files & share them? I can do so for my cams (I know, the distortion of the PS3Eye is rather very low), once I've figured out how to export distortion coefficients.
Thanks a lot in advance & have a nice day!