# CAM X

The CAMX window displays the camera information included within a mission. You can configure the numerous parameters associated with the sensors or cameras from this interface.

{% hint style="info" %}
When accessing this interface in Work Offline Mode, any modifications done will apply to the exported LAS/LAZ file that will be created when Exporting to LAS.
{% endhint %}

## Acquisition

The Acquisition tab displays the acquisition parameters for the camera sensor corresponding to the loaded .plp file. This is useful if the user wants to see the acquisition parameters that were set for the session. You can inspect the Event Pin of the camera as well as the method of Triggering.

{% hint style="warning" %}
These settings cannot be changed in Work Offline mode. They are simply read-only parameters.
{% endhint %}

![ SpatialExplorer Camera sensor local settings Acquisition interface](/files/-LTPhTSkT3SeDX_v3Xfq)

## Calibration

In the Calibration tab, the user can revise the Camera’s calibration values, such as sensor size (in mm), pixel size (in px), as well as camera position and camera orientation. These options should not be altered unless necessary, and only then should be used in very special cases.

![SpatialExplorer Camera sensor local settings Calibration interface](/files/-LTPd5y33IQoQ85amr-M)

Within the Calibration tab, near the bottom, there is a “Tools” button that includes several utilities for writing/reading/exporting various camera parameters.

![](/files/-M6Gy8SZjSuJp-oy2mj5)

### Tools

#### Export TerraPhoto Image Timing

One useful utility is the “Export TerraPhoto image timing” option. This option allows you to save a Terraphoto Image Timing file that stores position and orientation information for each image. Creating this file will allow you to link an image timing file with trajectory information. This file will associate the timestamps of the trajectories in TerraPhoto with the timestamps stored for each image in an image timing file.

![Save TerraPhoto Image Timing File](/files/-LTPe_f_bGj0FLYcnc77)

## Processing

The Processing tab allows for adjustment of the images used for colorization. If intervals have been selected, the user can choose to "Use Intervals" which will auto select images taken during the trajectory intervals and use those for colorization of the point cloud. It is also possible to manually check/uncheck images to use for colorization in this window. A preview of the image is shown on the right when one is selected.

### Colorization Search Strategy

There are 2 methods for determining which image to use during RGB extraction for points in your cloud.

![SpatialExplorer Camera sensor local settings Processing interface](/files/-MBjeudZvDL-i3y7yYH1)

The "Use photos close to point" method is based on spatial proximity and is influenced by the radius parameter. In general the benefit of using a spatial proximity method is that there are fewer points left uncolored. The drawback is that seam lines between photos are often more apparent.

![Colorization Search Strategy before and after point in SpatialExplorer Camera sensor local settings](/files/-M6GyszA78Ef_hIB6pSZ)

The  "Use photos exposed just before and after the point" option will select am image to pull RGB values from based on temporal proximity and will only search X images before and after the time of a LiDAR return. You can potentially increase the amount of points that get colored by this temporal method by increasing the range to 99 before and 99 after. This will work if the flightlines are not too long.


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