Spherical images
- Omar Lamrani
- Reza Mahmoudi Kuohi
- Bertin Colpron
Menu: View / Spherical images
It is possible to incorporate spherical images into VisionLidar by specifying a position file to accurately place the images in the project.
To begin with, in the "Upload images" tab click on "select files" to load the TXT or CSV file which is associated to the images - this file should include the file name, timestamp, position and orientation. If the software cannot find the images folder automatically it will prompt you to select the " images folder" manually.
A toolbar displays a few options for managing the spherical images in the list.
| Icon | Description |
|---|---|
| Delete all selected images. |
| Displays an image from the list on the screen. |
| Transparency | Change the transparency for the images when in spherical image mode. At 0 transparency only the image will be visible. Since changing transparency takes some time to compute, a check box is set to enable it. Disabling the transparency makes changes between photos smoother. |
| Will attribute the scan number to each image |
| Create an alingment based on the postition of the images |
| Rotates selected images based on the selected parameters |
| Exprot the images path to a .txt file |
Using projection and conversion allows you to convert the position of images when importing into the project. The source should usually match the projection or units of the original scan, while the destination should match the projection or units of the project.
Some tools are available within the spherical images window. See these specific pages for more information:
- Create an image from the point cloud
- Colorize the point cloud from the images
- Photogrammetry
- Convert Images
Note: When viewing spherical images, the user is locked in the position of the image and cannot move freely as when viewing the point cloud. To exit spherical image viewing mode, either click on the ESC key or perform a right click in the main screen.
Once the images are loaded, each image is positioned on the main screen with an annotation pin. This pin displays the position of the image as well as the direction of the trajectory. Double click on the pin to open the image or click on the Show 
icon in the image list next to the desired image. Afterward, browsing from image to image can be either done by double clicking on the next pin in the main window or going to the next or previous image (or group of images of which some are skipped). The "<<" and ">>" buttons allow to go from image to image thus afterwards automatically changing the timestamp specified in the "Time" field.
The "Show points" option will force points to appear over the image regardless of transparency.
Displaying a spherical image with the point cloud in the background
