The camera information is displayed on the right sidebar.
The camera information is also displayed when selecting a given camera in the Layers section of the left sidebar.
This article explains the camera information when using the rayCloud in PIX4Dmapper. The camera information of the calibrated images, uncalibrated images, and disabled cameras.
Access: On the Menu bar, click
View > rayCloud to open the rayCloud. The r
ight s
idebar is displayed on the right of the main window.
The displayed camera information is different for:
The following information is displayed in the Selection section:
- Camera: Name of the image associated with the selected camera.
- Camera Model: Camera model associated with the selected camera, including Image size in pixels (width x height) and band configuration.
- Number of Marked MTPs and GCPs: Number of Manual Te Points / GCPs marked on the image.
- Number of Automatic Tie Points: Total number of matched keypoints found on the image.
- Computed Position [units]: X, Y, Z computed position of the camera.
Buttons:
- Disable: Disables the image. In order to remove the camera from the reconstruction, the project needs to be reoptimized. This button is shown for enabled cameras. For more information: Menu Process > Reoptimize
- Uncalibrate: This option should be chosen if the user is not confident about the calibration of the camera.
- Help: Opens the PIX4Dmapper help.
- Apply (available when the Image Annotation tool is used): Applies the image annotation.
Image preview: Displays the image associated with the calibrated camera.
- Orange cross: Represents the position of an automatic keypoint that has been matched with keypoints from other images.
- Yellow cross: Represents a Manual Tie Point or a GCP marked on the image.
- Right slider: Allows to select the minimum number of images with which a keypoint has been matched.
-
Zoom in: Zoom in on the image. -
Zoom out: Zoom out of the image. -
Image Annotation: Activates the Image Annotation mode.
The Image Annotation tool includes the following:
- Mask: The pixels masked are not used for processing. Suitable for:
- Removing an obstacle that appears in a few images, like a scaffold. For more information: How to remove obstacles from the point cloud in the rayCloud using the Annotation Tool.
- Removing the background of the Orthoplane: For more information: How to remove the Background of the Orthoplane using the Annotation Tool.
- (for Bebop projects) Removing the sky automatically. For more information: Menu Process > Processing Options... > 1. Initial Processing > Calibration.
- Carve: All the 3D points located on the rays connecting the camera center and the annotated pixels are not used for processing. Suitable for sky removal. For more information: What is Carve?; How to remove the Sky from the Point Cloud using the Annotation Tool.
- Global Mask: The pixels annotated are propagated to all the images. All these pixels are not used for processing. Suitable for a consistent obstacle on all the images, e.g. the foot of the drone. For more information: How to remove obstacles from the point cloud in the rayCloud using the Annotation Tool.
Tip: For the selected image:
- In order to zoom in/out: Place the mouse over the location on which to zoom, and move the mouse scroll button forwards/backwards.
- In order to pan: Place the mouse over the location on which to pan, and press the left mouse button while dragging the mouse.
- By placing the mouse over an image and typing space, the image is displayed in full screen, where is possible to zoom, pan, click, etc.
- When using the full-screen mode, by typing:
- Space: Minimizes the image and keeps the full-screen zoom and panning level.
- Esc: Minimizes the image and keeps the previous zoom and panning.
Images section
When double-clicking on a cross in the Image preview (Automatic/Manual Tie Point or GCP), the Images section displays the images where the point can be found (including the currently selected image). For more information: Menu View > rayCloud > Right sidebar > Images section.
When selecting an uncalibrated camera, it can be manually calibrated.
The following information is displayed in the Selection section:
- Camera: Name of the image associated with the selected camera.
- Camera Model: Camera model associated with the selected camera, including Image size in pixels (width x height) and band configuration.
- Number of Marked MTPs and GCPs: Number of Manual Te Points / GCPs marked on the image.
- Number of Automatic Tie Points (Inliers/Total): Inlier points and the total number of matching keypoints found on the image.
- Computed Position [units]: X, Y, Z position of the computed camera. Since there is no computed position, it appears as n/a.
The following information is displayed in the Initial Position and Orientation section:
Buttons:
- Disable: Disables the image. In order to remove the camera from the reconstruction, the project needs to be reoptimized. This button is shown for enabled cameras. For more information: Menu Process > Reoptimize
- Calibrate: Allows the calibration of an uncalibrated camera. This button is enabled only if more than 20 Manual Tie Points and Automatic Tie Points are considered as being inliers.
- Close: Exits the manual calibration mode.
- Help: Opens the PIX4Dmapper help.
- Apply: (available when the Image Annotation tool is used): Applies the image annotation.
Note: For step-by-step instructions about how to calibrate a camera:
How to manually calibrate uncalibrated Cameras in the rayCloud.
Image preview: Displays the image associated with the uncalibrated camera.
- Red cross: Represents the position of an automatic keypoint that was not matched with keypoints of other images.
- Orange crosses: Represents the position of an automatic keypoint which has a high probability of being accurately matched with keypoints of other images.
- Yellow crosses: Represents a Manual Tie Point or a GCP marked on the image.
- Right slider: Allows the user to select the minimum number of images with which a keypoint could be matched.
-
Zoom in: Zoom in on the image. -
Zoom out: Zoom out of the image. -
Image Annotation: Activates the Image Annotation mode.
The Image Annotation tool includes the following:
- Mask: The pixels masked are not used for processing. Suitable for:
- Removing an obstacle that appears in a few images, like a scaffold. For more information: How to remove obstacles from the point cloud in the rayCloud using the Annotation Tool.
- Removing the background of the Orthoplane: For more information: How to remove the Background of the Orthoplane using the Annotation Tool.
- (for Bebop projects) Removing the sky automatically. For more information: Menu Process > Processing Options... > 1. Initial Processing > Calibration.
- Carve: All the 3D points located on the rays connecting the camera center and the annotated pixels are not used for processing. Suitable for sky removal. For more information: What is Carve?; How to remove the Sky from the Point Cloud using the Annotation Tool.
- Global Mask: The pixels annotated are propagated to all the images. All these pixels are not used for processing. Suitable for a consistent obstacle on all the images, e.g. the foot of the drone. For more information: How to Annotate Images in the rayCloud.
Tip: For the selected image:
- In order to zoom in/out: Place the mouse over the location on which to zoom, and move the mouse scroll button forwards/backwards.
- In order to pan: Place the mouse over the location on which to pan, and press the left button while dragging the mouse.
- By placing the mouse over an image and typing space, the image is displayed in full screen, where is possible to zoom, pan, click, etc.
- When using the full-screen mode, by typing:
- Space: Minimizes the image and keeps the full-screen zoom and panning level.
- Esc: Minimizes the image and keeps the previous zoom and panning.
Tie Points section: Displays in a table information about the Manual Tie Points and GCPs that are marked on the selected image. The table allows to edit the information about the Tie Points by double-clicking on the corresponding cell. For more information: GCP / Manual Tie Point Table.
- Apply: When clicking on this button, the new marks or changes for the displayed Manual Tie Points and GCPs are added to the project.
Images section
When double-clicking on a cross in the Image preview (Automatic / Manual Tie Point or GCP), the Images section displays the images where the point can be found (including the currently selected image). For more information: Menu View > rayCloud > Right sidebar > Images section.
The following information is displayed in the Selection section:
- Camera: Name of the image associated with the selected camera.
- Camera Model: Camera model associated with the selected camera, including Image size in pixels (width x height) and band configuration.
- Number of Marked MTPs and GCPs: Number of Manual Te Points / GCPs marked on the image.
- Number of Automatic Tie Points (Inliers/Total): Inlier points and the total number of matching keypoints found on the image.
- Computed Position [units]: X, Y, Z position of the computed camera. Since there is no computed position, it appears as n/a.
Buttons:
- Enable: Enables the image. In order to include the camera from the reconstruction once it is enabled, the project needs to be reoptimized. This button is shown for enabled cameras. For more information: Menu Process > Reoptimize
- Close: Exits the manual calibration mode.
- Help: Opens the PIX4Dmapper help.
- Apply: (available when the Image Annotation tool is used): Applies the image annotation.