Differences

This shows you the differences between two versions of the page.

--- motive_calibrating [2019/08/20 09:38] – 10.128.96.101
+++ motive_calibrating [2019/08/21 21:24] (current) – nkottman
@@ Line 16: / Line 16: @@
 Make sure no reflective objects are visible to the system. **Remove all all reflective objects from the space or cover them**. Many shoes have actually reflective surfaces, so make sure to either tape them or take them off for the following processes.
-Reflections can be seen in the **Camera Preview** pane, witch can be zoomed with the mouse wheel. Some small reflections on the floor can not be avoided and should not influence the tracking.
+Reflections can be seen in the **Camera Preview** pane, which can be zoomed with the mouse wheel. Some small reflections on the floor can not be avoided and should not influence the tracking.
 **Switch back cameras to object mode** by ''selecting all cameras in the Device pane'' and pressing the ''grayscale symbol'' to continue calibration.
@@ Line 31: / Line 31: @@
 ===== Camera Settings =====
-**Place a marker** inside the tracking space.
+**Place a marker** inside the tracking space as a reference.
-**Select all cameras** in the ''Devices Pane''.
+{{ ::motive-23.png?300| Camera Settings}}
+ **Select all cameras** in the ''Devices Pane'' and adjust the following camera settings only if the reference is not clearly visible and/or there are a lot of false marker detections caused by reflections.
 == Gain ==
@@ Line 39: / Line 41: @@
 Set Gain to the highest valueif you use the whole motion capture space.
-Recommended Gain Value: 8: High (Long Range)
+''Recommended Gain Value: 8 High (Long Range)''
 == Exposure ==
-Longer (high) exposure values makes small markers more visible, but high values can introduce false markers. It is best to minimize the exposure setting as much as the markers are clearly visible in the captured images and that there are as less false markes as possible. So set the exposure to the lowest possible value that the marker is still visible and false markers are reduced to a minimum.
+Longer (high) exposure values makes small markers more visible, but high values can introduce false markers. It is best to minimize the exposure setting as much as the markers are clearly visible in the captured images and that there are as less false markes as possible. **Set the exposure to the lowest possible value that the marker is still visible and false markers are reduced to a minimum**.
-Recommended Exposure Value: 100
+''Recommended Exposure Value: 100''
 == Threshold ==
-Keep the threshold as high as possible to remove false reflection but keeping markers still visible.
+Keep the **threshold as high as possible to remove false reflection but keeping markers still visible**.
-Recommended Threshold Value: 220
+''Recommended Threshold Value: 220''
+===== Calibration with Passive Wand =====
-{{:switchvideomode.png?400|}}
+Make sure that the **Tracking Mode is set to Passive**. Otherwise, press ''Passive, Active'' Symbol in 3D View.
-check the Tracking Parameters
+{{::motive-3.png?200| Passive Tracking Mode}}
+{{ ::motive-31.png?200| Wand configuration & Masking}}
-{{:tracking_parameters.png?400|}}
-Tested settings are:
+=== Masking ===
-  * Camera Frame Rate: 100 Hz
+Once all the reflections are removed, Clear the previously set masks by pressing ''Clear Mask'' in the Calibration pane. Then set the masks again by pressing ''Mask visible''. it is important that nobody is inside the space at this moment.
-  * Exposure: 120
-  * Threshold: 210
-  * Gain: 8: High (Long Range)
-adjust this values until the reflections from the floor are acceptable.
+=== Wanding ==
-== LED ==
+Select ''OptiWand CW-500 (500mm)'' in the Calibration pane as wand type and press ''Start Wanding''.
-Set LED
+{{ ::img_0723.jpg?200| Passive Wand}}
-== Exposure ==
+Take the ''passive wand'' (with grey reflectors), **walk trough the tracking space** and **swing the wand continuously in front of all cameras** and also in the middle of the space.
-Longer (high) exposure values makes small markers more visible, but high values can introduce false markers. It is best to minimize the exposure setting as much as the markers are clearly visible in the captured images and that there are as less false markes as possible.
+The cameras will indicate with a blue LED light, when they detecting the markers of the wand (also indicating the direction by the position of the blue light in the circle). The LED light will turn into green when the wanding was successful. Do not wand to close to the cameras, **keep at least 3m distance from the cameras**.
-== Threshold ==
+Keep on **wanding util each cameras LED circle is fully green** and you have reached **at least 5000 samples** on each camera.
-Keep the threshold as high as possible to remove false reflection but keeping markers still visible.
+{{::img_0711.jpeg?200| Camera indicating wanding with blue LED}}
+{{::img_0712.jpeg?200| Camera indicating wanding with blue LED}}
+{{::img_0713.jpeg?200| Camera indicating completed wanding with green LED}}
+{{::motive-17.png?300| Wanding Samples per Camera}}
+{{::motive-15.png?380| Wanding Visualization}}
-===== Calibration with Passive Wand =====
+After wanding, press ''Calculate'' to solve the camera positions. Solving takes some time. Only if the result is **Exceptional**, you will get good tracking results. Otherwise, repeat the calibration process and check for reflections.
+{{::motive-19.png?400|}}
-Once all the reflections are removed, clear the previously set masks by pressing ''Clear Mask in the Calibration pane'':
-{{:clearmask.png?400|}}
+=== Ground Plane ===
+If you plan to use the tracking system with projections, take special care to position the groundplane as precise as possible over the markers.
+{{::img_0715.jpg?300| Ground Plane}}
+{{ ::motive-29.png?300 Set Ground Plane|}}
+Place the L shaped ground plane in the **middle of the room**, facing the long side to the large door.
+Press ''Set Ground Plane'' in the Ground Plane tab in the Camera Calibration pane.
+If you get an error message, that no Ground Plane can be found, try to find the 3 Markers in the 3D view, select them and press ''Set Ground Plane'' again
+If setting Ground Plane is successful, you will be promted to **save the calibration**. Choose [[motive_sessions|your session folder]] and create a subfolder **Calibration**.
+{{:savecalibration.png?400|}}
+The calibration is now finished.
 ===== Calibration with Active Wand =====
-then set the masks again (press "Mask visible"). it is important that nobody is inside the space at this moment.
+Make sure that the **Tracking Mode is set to Active**. Otherwise, press ''Passive, Active'' Symbol in 3D View.
-{{:clearmask.png?400|}}
+{{::motive-4.png?200| Active Tracking Mode}}
+{{ ::motive-30.png?200|Wand configuration & Masking}}
-once the masks are set, the space is ready for wanding. make sure you are using the correct wand (500mm)
-{{:startwanding.png?400|}}
+=== Masking / LED ===
-keep on wanding until each camera has at least 1500 Samples:
+Clear the previously set masks by pressing ''Clear Mask'' in the Calibration pane. Disable all infrared LED light of the cameras by pressing ''LED in the Device pane''. Active wands do not need LED lights from the camera.
-{{:wandingt.png?400|}}
-press calcualate:
+=== Wanding ==
-{{:calculate.png?400|}}
+Select ''Micron Series (500mm)'' in the Calibration pane as wand type and press ''Start Wanding''.
-once the result looks like this:
+{{ ::img_0709.jpg?200|Active wand}}
-{{:solution.png?400|}}
+Take the ''active wand'' (with battery) and **turn it on** on the back, **walk trough the tracking space** and **swing the wand continuously in front of all cameras** and also in the middle of the space. The 3 active marker LED are on the opposite side of the On/Off switch, so make sure that they point to the camera.
-confirm to apply:
+The cameras will indicate with a blue LED light, when they detecting the markers of the wand (also indicating the direction by the position of the blue light in the circle). The LED light will turn into green when the wanding was successful. Do not wand to close to the cameras, **keep at least 3m distance from the cameras**.
-{{:applysolutiondialog.png?400|}}
+Keep on **wanding util each cameras LED circle is fully green** and you have reached **at least 5000 samples** on each camera.
-and as the last step set the ground plane. The ground plane L has a defect waterbalance, so please do not adjust the leveling screws, it should be ok the way it is now.
+{{::img_0711.jpeg?200| Camera indicating wanding with blue LED}}
+{{::img_0712.jpeg?200| Camera indicating wanding with blue LED}}
+{{::img_0713.jpeg?200| Camera indicating completed wanding with green LED}}
-{{:setgroundplane.png?400|}}
+{{::motive-17.png?300| Wanding Samples per Camera}}
+{{::motive-15.png?380| Wanding Visualization}}
-Vertical Offset is the distance from the ground to the center of the reflectors.
-the ground plane Z-Axis should point towards the computers. there are three markers on the trackingspace that indicate the position. If you plan to use the tracking system with projections, take special care to position the groundplane as precise as possible over the markers.
+After wanding, turn of the wand and press ''Calculate'' to solve the camera positions. Solving takes some time. Only if the result is **Exceptional**, you will get good tracking results. Otherwise, repeat the calibration process and check for reflections.
-{{:groundplate.jpg?400|}}
+{{::motive-19.png?400|}}
-save the callibration file inside [[motive_sessions|your session folder]].
+=== Ground Plane ===
+**Enable the LED lights** of the cameras by pressing ''LED in the Device pane''.
+Make sure that the **Tracking Mode is set to back to Passive**. Otherwise, press ''Passive, Active'' Symbol in 3D View.
+{{::motive-3.png?200| Passive Tracking Mode}}
+If you plan to use the tracking system with projections, take special care to position the groundplane as precise as possible over the markers.
+{{::img_0715.jpg?300| Ground Plane}}
+{{ ::motive-29.png?300 Set Ground Plane|}}
+Place the L shaped ground plane in the **middle of the room**, facing the long side to the large door.
+Press ''Set Ground Plane'' in the Ground Plane tab in the Camera Calibration pane.
+If you get an error message, that no Ground Plane can be found, try to find the 3 Markers in the 3D view, select them and press ''Set Ground Plane'' again
+If setting Ground Plane is successful, you will be promted to **save the calibration**. Choose [[motive_sessions|your session folder]] and create a subfolder **Calibration**.
 {{:savecalibration.png?400|}}
+The calibration is now finished.