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dev:desktop_ext:image_pixel_objects [2021/04/08 13:41] paulien [Image Annotation to Object] |
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- | ====== Image Annotation to Object ====== | ||
- | FIXME | ||
- | This page describes how to use the extension "Image Annotation to Object" | ||
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- | {{orbit_desktop: | ||
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- | The "Image Annotation to Object" | ||
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- | ===== Concepts ===== | ||
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- | Image annotations can be defined for mapping run imagery in pixel coordinates and bounds. The image pixels are converted into 3D coordinates or 3D boxes in a vector file using the mapping run pointcloud. | ||
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- | The 2D annotations and tags are overlayed on the opened image. | ||
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- | ===== Source ===== | ||
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- | ==== Pixel Definitions ==== | ||
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- | Select how the annotations are defined:\\ | ||
- | * Coordinates: | ||
- | * Bounds: every annotation is defined by 2 pixel coordinates that form the bounds of the rectangle | ||
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- | ==== Reference Files ==== | ||
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- | Choose how the reference files are structured: | ||
- | * One file for every image | ||
- | * One file for all images | ||
- | Supported formats are .csv and .xml. | ||
- | ===== Target ===== | ||
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- | After selecting the target file location and CRS, choose to create 3D point objects or boxes. | ||
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- | The result is an ovf with | ||
- | The pixels_not_converted.txt contains the list of objects that couldn' | ||
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- | ===== Advanced Parameters ===== | ||
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- | Depending on which source and target options have been set, the used parameters will be enabled. | ||
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- | ==== Search Slice Thickness ==== | ||
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- | The thickness of the slices created from camera position to pixel point to search for points. | ||
- | *For creating 3D Coordinates: | ||
- | *For creating 3D Boxes: Do search in the following slices up until the Search Dist Max is reached. | ||
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- | ==== Search Dist Max ==== | ||
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- | The maximum distance from the camera to the detected object. | ||
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- | ==== Search Radius and Cluster Distance ==== | ||
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- | The radius around the vector between camera position and pixel point to search for cluster points. | ||
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- | Tooltip: The cluster size to identify coordinates in the direction from camera position to image position. | ||
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- | ==== Cluster Pts Min ==== | ||
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- | The minimum number of points to have a cluster. | ||
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- | ==== Search Radius (Box from Pix Coord) ==== | ||
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- | The search radius around the direction camera to pixel position to search for the 3D object. | ||
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- | ==== Ground margin ==== | ||
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- | The ground margin used to identify a 3D box reached the ground to be able to end the clustering. | ||
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- | ==== Voxel Size ==== | ||
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- | The voxel size used to cluster objects. | ||
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- | ==== Voxel Pts Min ==== | ||
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- | The minimum number of points to have a voxel. | ||
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- | ===== Analyze ===== | ||
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- | ===== Results ===== | ||
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Last modified:: 2021/04/08 13:41