It provides a set of tools to capture, slow down, study, compare, annotate and measure technical performances. Learn more. We strive to build a software simple enough for use in classroom and powerful enough for olympic training. Measure angles, distances and times manually or use semi-automated tracking to follow the trajectories of points on the video. Export your analysis to spreadsheet formats for scientific study and further processing.
Create custom tools to suit specific needs. Kinovea takes a fair amount of time and energy and I appreciate every bit of support! I have a full time job and work on Kinovea during my spare time. The money will be used to acquire new cameras for testing and integrating in the capture module, upgrades to my development machine and a code-signing certificate for improving the security of releases.
I have chosen the "per creation" model in Patreon so payments will be "per release", not "per month". Releases are spaced out pretty far apart, every 6 months to a year.
This model feels the most appropriate for the project. The name and color for the plot are taken from the objects configuration. When comparing several trajectories, three time models are available: absolute, relative and normalized.
Exporting trajectory data to CSV will export a common time column first and then one column per trajectory. The trackable drawings point, line, angle, custom drawings, etc. So if you track and angle drawing, its three points will show up in the linear kinematics window as three distinct trajectories that you can treat as any other trajectory.
A new kinematics analysis window has been introduced for angular kinematics. This window will let you visualize angular kinematics values like angular velocity or tangential velocity for angles that were tracked in the video. The time options "relative" and "normalized" are also available. These are diagrams that directly map the angular value of two angles against each other.
This is useful to get insights into the dynamics of a specific motion. A typical example is to plot the knee angle against the ankle angle over a few cycles of running or cycling. The overall shape of the cyclic curve can be compared to the literature or between athletes or sessions. The diagram is defined during the overlapping period of time of the two angles considered. The angle-angle diagram will also work for custom tools that contain angles.
This is possibly the most practical way to use this feature, for example with the bike fit tool or a tool dedicated to the angles you want to review. In addition to the raw angle value, it is also possible to map the angular velocities or tangential velocities of two joint angles against each other. If you need to track the same joint angle at distinct times in the video, create several angle tools and track them independently. Each tracked point has an underlying timeline of positions that is not exposed to manipulation.
Filling this timeline with discontinuous sequences will cause unexpected behavior. Note that this filtering is to remove the high frequency noise created by the digitization process, it should be left enabled unless you intend to run your own filtering algorithm on the data.
The Camera recording mode is the default and will record the video stream straight from the camera to disk, compressing it on the fly if necessary. This is the best performance path. For some combinations of framerate and image size, it is the only usable option. The Display recording mode will let the video go through the buffering system for the delayed live feature and the composition system for mosaicing if active , and it is the final image that will be recorded to disk.
An entirely new camera module was written to support IDS cameras. The maximum allocated memory for the capture module is now based on whether Kinovea is currently running on bit or bit Windows. This should allow for much longer delay when memory permits. Feel free to use this post for feedback, bug reports, usability issues, feature suggestions, etc. This update is a godsend :- I joined the forum specifically to request the increase of the capture delay memory buffer.
It worked just fine in the stable release. If I open the Camera app on the computer I can see the live video feed so the connection to the computer is definitely working. Note: this definitely worked for version 0. Do you see the thumbnail for the camera in the camera list tab? Could you collect the log file see in help menu to get to the folder containing it and send it over at joan at kinovea dot org, thanks. Also, try the following: right click the thumbnail of the camera and select "Forget custom settings", if you are using the installed version, to remove the settings set with the previous version.
Hi, thanks for the response. Showing it and manually connecting worked on the Mac Dear joan, thank you very, very much for this wonderful piece of software. Looking forward to using it as of now! Any bugs or unexpected features ;- will be communicated. Best regards,. SlowMotion Loop feed - got it running in 4 screen split, but its confusing as to the order of the screens to watch Yeah I know what you mean.
Continuously slowing down the real time is an ill-posed problem though, if there was only one view there would have to be gaps in time when it runs out of space. I tried to design it so that if there are several people constantly doing things in sequence, you could still theoretically see each of their actions fully in slow motion. But in practice you have to guess when you are supposed to change your focus and to which sub-view. So for example if the action takes 5 seconds and you are watching at half speed, people have to be spaced by at least 10 seconds.
The synchronization gap happening at the wrong time is what the multi-view is trying to solve by showing views with staggered ages, the gap in one view is filled by another view. Another improvement would be to display a countdown showing when it will go out of space and do a synchronization jump. I think I have found a small bug in the linear kinematics tool when using a high-speed camera recording. I have recorded at fps and manually change the video timing to reflect this.
Then I track something e. I love this new tool - we are planning on using it in our university teaching. Thanks for the great innovations.
Can you confirm this what you are doing?
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