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Image Pixels to Objects
This page describes how to use the extension “Image Pixels to Objects”
Feature Extraction Pro
Main Toolbar > Extensions > Image Pixels to Objects
The “Image Pixels to Objects” extension makes it possible to convert Image Pixel coordinates or bounds into 3D coordinates or 3D boxes.
Concepts
Image pixel coordinates and bounds can be defined for mapping run imagery. The image pixels are converted into 3D coordinates or 3D boxes in a vector file.
The 2D annotations and tags are overlayed on the opened image.
Sidebar
Source
Pixel Definitions
Coordinates Bounds
Reference Files
Define if there is one source file for every image or one source file for all images.
Target
Select the target file location and CRS. Choose to create 3D coordinates or 3D boxes.
Parameters
Cluster size
The cluster size to identify coordinates in the direction from camera position to image position.
Advanced Parameters
Search Slice Thickness
The thickness of the slice used to find an object in the direction camera to pixel position. If one slice has object, don't look in further slices. Only if there's a 3d box, then do look further
Cluster Pts Min
The minimum number of points to have a cluster.
Search Radius (Box from Pix Coord)
The search radius around the direction camera to pixel position to search for the 3D object.
Search Dist Max
The maximum distance from the camera to the object.
3D Box Creation - Ground margin
The ground margin used to identify a 3D box reached the ground to be able to end the clustering.
3D Box Creation - Voxel Size
The voxel size used to cluster objects.
3D Box Creation - Voxel Pts Min
The minimum number of points to have a voxel.