--- title: "Camera calibration parameters" canonical: "https://help.vicon.com/space/Evoke17/10817043/Camera%20calibration%20parameters" format: markdown --- In the **Camera Calibration** panel, you can change the following settings: > Macro (scroll-only) > > > Macro (toc) > Macro (excerpt) > > > ℹ️ **Note** > > ℹ️ Some options are available only when advanced parameters are displayed (at the top right of the section, click Advanced Parameters > > ℹ️ > > ℹ️ ![image](media://10c30832-5e3b-45e8-8c14-70fe68deb4c1) > > ℹ️ > > ℹ️ ). > Macro (scroll-pagebreak) ## > Macro (inline-media-image) Video Setup section > Macro (scroll-tablelayout) | **Control** | **Description** | | --- | --- | | **Activate Video Calibration** | Activates wand detection for video cameras. | ## > Macro (inline-media-image) Masking section > Macro (scroll-tablelayout) | **Control** | **Description** | | --- | --- | | **Slack** | Specify the number of additional pixels to mask around the detected edges. Range 0 to 4. Default: 1 px | | **Clear Previous Masks** | When selected, previous masks are cleared at the start of the masking process. Default: Selected | | **Mask All** | Starts automatically masking light sources. At least one camera must be contributing data. | | **Selected** | Automatically masks the current camera selection. At least one camera must be selected. | | **Cancel** | Cancels the current auto-masking operation and restores the previous camera masks. For this button to be enabled, auto-masking must be in progress. | | **Manual Mask Paint** | Starts manual masking. For this button to be enabled, at least one camera must be contributing data. | | **Cancel** | Cancels the current masking operation and restore the previous camera masks. For this button to be enabled, manual masking must be in progress. | > Macro (scroll-pagebreak) ## > Macro (inline-media-image) Wand Wave section > Macro (scroll-tablelayout) | **Control** | **Description** | | --- | --- | | Wand list | Select the calibration object to be used during the camera calibration process. Also used for Set Origin process, unless you select a different calibration object in the Volume Setup section (Advanced parameters). Default: Active Wand v2 | | **Auto Stop** | When selected, Evoke automatically stops camera calibration when sufficient data (defined by the number of minimum wand detection frames) has been collected. Default: Selected | | **Auto Stop Minimum Frames** | With Auto Stop selected, this value defines the minimum number of wand detection frames required per camera before Evoke automatically stops calibration. Range 100 to 10,000. Default: 1000 | | **Auto Stop Minimum Frames (Video)** | With Auto Stop selected, this value defines the minimum number of wand detection frames required per video camera before Evoke automatically stops calibration. Range 100 to 10,000. Default: 500 | | **Wand Ratio Tolerance** | Tolerance of the distance between the markers on the wand (expressed as a ratio), to enable it to be labeled in 2D. Range 0.01 to 0.50. Default: 0.2 | | **Wand Straightness Tolerance** | Tolerance in alignment of wand markers (relating to the maximum angle allowed between markers) to enable it to be labeled in 2D. Range 0.01 to 0.50. Default: 0.2 | | **Wave All** | Starts collecting wand wave data for camera calibration. At least two non-video cameras must be contributing data. | | **Selected** | Starts collecting wand wave data for calibrating selected cameras. | | **Cancel** | Cancels the current camera calibration operation. | > Macro (scroll-pagebreak) ## > Macro (inline-media-image) Volume Setup section > Macro (scroll-tablelayout) | **Control** | **Description** | | --- | --- | | ***Set Volume Origin section***** ** | | Synchronize L-Frame > Macro (inline-media-image) | Controls whether the L-Frame is synchronized with the wand wave calibration object. Disable to select a different L-Frame. Default: Synchronized | | Wand list | Select the calibration object to be used during the Set Volume Origin process, if different from the calibration object selected in the Wand Wave section (Advanced parameters). Default: Active Wand v2 | | **Perform Rescale** | When selected, rescales the calibration using the dimensions of the selected L-Frame object. For more information see [Scale calibration and set a fixed origin](https://vicon-help.atlassian.net/wiki/spaces/Evoke17/pages/10817435). Default: Selected | | **Start Set Origin** | Starts collecting data to set the volume origin. For this button to be enabled, at least two calibrated optical cameras must be contributing data. | | **Cancel** | Cancels the current Set Origin operation. For this button to be enabled, Set Origin must be in progress. | | ***Set Floor Plane section***** ** | | **Height offset (mm)** | Specify a value in millimeters by which to lower the floor plane. Default: 7 mm | | **Start Set Floor Plane** | Starts collecting data to set the floor plane. For this button to be enabled, at least two calibrated optical cameras must be contributing data. | | **Cancel** | Cancels the current set floor plane operation. For this button to be enabled, Set Floor Plane must be in progress. | | * ****Set Floor Grid section**** * | | **Min X (mm)** | Set the minimum x-coordinate of the floor plane in millimeters. Default: -3,000 mm | | **Max X (mm)** | Set the maximum x-coordinate of the floor plane in millimeters. Default: 3,000 mm | | **Min Y (mm)** | Set the minimum y-coordinate of the floor plane in millimeters. Default: -3,000 mm | | **Max Y (mm)** | Set the maximum y-coordinate of the floor plane in millimeters. Default: 3,000 mm | | **Set Floor Grid** | Automatically sets the size of the floor grid from the visible floor area. For this button to be enabled, at least two cameras must be calibrated. | | * **** Auto Number Cameras section**** * | | **Auto Number Cameras** | Automatically numbers the cameras sequentially around the volume (see [Autonumber cameras](https://vicon-help.atlassian.net/wiki/spaces/Evoke17/pages/10818124/Set+up+the+volume#AutonumberCameras)). | ## > Macro (inline-media-image) Calibration Healing section > Macro (scroll-tablelayout) | **Control** | **Description** | | --- | --- | | ** ****Recover Camera Pose** ** ** | Starts collecting track data generated by moving markers to recover the pose of the selected camera(s). At least one camera must be selected. You cannot recover the pose of a non-contributing camera. | | **Cancel** | Cancels the current Recover Camera Pose operation. For this button to be enabled, Recover Camera Pose must be in progress. |