Kapta
The Kapta view allows you to see the video stream of the Kaptas connected to Kratos. This is allows where you can perform manual tracking.
To create a Kapta view, check the Layout organization section.
Kapta list
The Kapta view presents a side panel on the left listing all the Kapta that have been connected to the show (see more at the side panel section).
For each Kapta present in this list, you can see the following information :
- Serial Number
- Ip address
- Global data rate
- Connection status (green : connected, orange : disconnected, red : lost)
- Icon, position, framerate and data rate for each camera
To delete Kaptas from the list, go to the Kapta tab of the Show explorer view.
Camera view
When a Kapta is selected in the Kapta list, the view will display the video stream of this Kapta's central visible light camera. A camera selector allows you to change the camera displayed in the view.
The cameras are listed like they are placed in the Kapta, from left to right :
- NIR (Near Infra-Red) Left
- Thermal Left
- Visible Light Central
- NIR (Near Infra-Red) Right
- Thermal Right
Touch controls
Kratos is fully compatible with touchscreens. On the Camera view, you can use the following gestures :
- Drag the view : use two fingers in a equidistant gesture
- Zoom in / out : use two fingers in a pinch gesture
- Manual tracking : if manual tracking mode is selected for a target, you can drag the manual tracker with one finger
Manual tracking controls
When manual tracking mode is selected for a Target in the Target Patcher view, a manual tracker will appear on the Kapta view. You can then drag this manual tracker to perform tracking manually (with a mouse or using a touchscreen). This operation allows you to track other thing than human or to track a human in a specific way or in a specific situation.
- Left click : Hold to track. The manual tracker will be freed when click is released.
- Right click on the manual tracker : Follow mode. The manual tracker will follow the mouse cursor until another right click.
- Right click anywhere on the view : Teleport the manual tracker to the mouse cursor position. Useful when you don't know where the manual tracker is.
If you are using a touchscreen, multiple manual trackers can be moved at the same time.
Top icons
| Function | Icon |
|---|---|
| Open Mask Editor See more about masks here |
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| Show / Hide Action Areas overlayed on the camera view This option works best if the camera view is rectified |
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| Enable / Disable multi-touch This will prevent the user from dragging or zooming in the view, useful if multiple manual tracking are needed on the same screen |
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| Show / Hide camera selector |  |
| Move camera selector to the top of the view |  |
| Move camera selector to the bottom of the view |  |
| Connect / Disconnect selected Kapta |  |
Masks
Masks are an important part of a K SYSTEM setup. With masks you can hide certain parts of the Kapta's cameras view to the IA, alleviating its workload and preventing it to spawn Trackers where there is no need for it (if the Kapta sees a part of the audience for example).
Mask editor can also be accessed from the Show explorer view.
It is good practice, when a Kapta is set up, to draw a mask for each of its 5 cameras to hide the parts of the images where no tracking will be needed.
On the right-hand side of the mask editor window, you can select the camera you want to edit the mask. If multiple Kaptas are connected, the cameras of all the Kaptas will be listed. You can close the camera list with the camera icon.
When the mask editor window is closed, all changes are saved and applied automatically.
| Function | Icon |
|---|---|
| Close mask editor |  |
| Clear current mask |  |
| Open / Close camera list |  |
| Toggle Move function With this function On, you can move through the image with left click and drag.You can zoom in and out at any time with mouse wheel |
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| Toggle Draw function With this function On, left click will draw the mask and left clik will erase the mask |
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| Toggle Erase function With this function On, right click will erase the mask ans left click will draw the mask |
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| Brush size selector You can change the size of the brush used to draw or erase the mask with this slider |
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| Undo / Redo buttons You can also use the Ctrl + Z and Ctrl + Y shortcuts |
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We recommend to use masks rather than No tracking Areas.
A No Tracking Area prohibits the IA to spawn Trackers to detected persons in a certain area. But the IA is still working on this area, detecting people without assigning them Trackers. A mask hide unused portions of the image to the IA, alleviating workload for the Kore.