2.5D Tool

SURE includes a  2.5D worklfow which integrates algorithms designed specifically for airborne mapping applications.

These algorithms include a point cloud rasterization step ( DSM), an algorithm dedicated for production scale generation of true orthophotos and an efficient algorithm for the creation of a textured mesh surface based on the digital surface model, automatically generated in multiple levels of details.

The 2.5D tool has been created to be able to use the single modules contained within the SURE workflow separately enabling the user to choose the input data more freely which will be used to generate the desired resources.

LiDAR data can be imported by giving the LiDAR_cloudlist.txt path in the corresponding input field. This step is needed in case that the user would like to generate a DSM/DSM Mesh/TrueOrtho from both DIM data & LiDAR data.


Basic Usage

Important

The processing with the SURE 2.5D Tool is completely independent of a regular SURE Project.

This entails the following consequences:

  • If parameters used in the 2.5D panel are imported from a SURE Project, modifications will not be stored in the original project
  • Processing single modules does not affect their processing status within the original project
  • When choosing the same output folder as the original project, data will be overwritten

Parameters

Parameters can be loaded in two ways:

  • When opening the 2.5D panel from within SURE, the settings in the current project can be automatically applied to the SURE 2.5D Tool
  • From the File menu, parameter sets can be loaded by opening SURE project files - to apply all relevant parameters contained in the SURE project

Input Images

Input imagery can be provided as:

  • Directory that only contains image files ( supported file formats Output formats)
  • List file containing paths to image files ( e.g. image_color_list.txt )

Input Orientation

Input orientation data can be provided as:

  • Directory that only contains orientation files
  • List file containing paths to orientation files (e.g. orientation_list.txt)

Note: For this tool, only the native SURE .ori file format can be used.

Important

 The number of provided images and orientation file must be the same.

Input Cloud

3D cloud input data can be provided as:

  • List file containing paths to cloud data files (e.g. point_cloud_raw_list.txt)
  • Single cloud file
  • The directory containing point cloud las (laz) files

For a list of supported point cloud formats see: Output formats.


Input LiDAR Cloud

LiDAR cloud input data can be provided as:

  • List file containing paths to LiDAR cloud data files (e.g. lidar_cloudlist.txt)
  • Single LiDAR .las cloud file
  • A directory containing LiDAR las (laz) files.

Input Mesh

2.5D / 3D Mesh input data can be provided as:

  • List file containing paths to mesh tiles (e.g. dsmmeshlist.txt, meshlist.txt)
  • Single mesh main tiles (not main linking models)

The input meshes have to be of osgb format.

Output

Path to the Output folder directory where the 2.5D Workflow data will be stored.

DSM

Fieldrequired
Input Images(error)
Input Orientation

(error)

Input Cloud and/or Meshes(tick)
LiDAR Cloudoptional

The primarry output data of the module are:

Output resourcesLocation
DSM images/Results/DSM/tif
DSM pointcloud/Results/DSM/las

True Ortho

Fieldrequired
Input Images(tick)
Input Orientation

(tick)

Input Cloud

(tick)

LiDAR Cloudoptional

True Ortho generation requires a DSM as input according to the SURE standard. As a consequence, the DSM is always carried out on the selected Input Cloud data before the actual True Ortho processing starts.

Primary output resources of the module are:

Output resourcesLocation
True Ortho images/Results/True_Ortho

DSM Mesh

Fieldrequired
Input Images(tick)
Input Orientation

(tick)

Input Cloud(tick)
LiDAR Cloudoptional

DSM Mesh generation requires a DSM as input according to the SURE standard. As a consequence, the DSM is always carried out on the selected Input Cloud data before the actual DSM Mesh processing starts.

Primary output resources of the module are:

Output resourcesLocation
DSM Mesh/Results/DSM_Mesh/