SphereFollowing Advanced
Plugin : SimpleForestNom de classe : SF_StepSphereFollowingAdvanced
Description
This implementation of the SphereFollowing method utilizes an segmented tree cloud and pre-estimated parameters. We initialize our routine with the cluster containing the stem and major branch structure of the tree. On that cluster we perform a Nelder and Mead parameter search. Then we extend the cluster by adding its closest neighboring cluster. With adding a cluster, we add also another cluster related parameterset which extends the dimensionality of the search space by 3. On accumulated clusters with extended parameter space Nelder and Mead is repeated. We add iteratively more clusters until we reach the last cluster at the tip of the branches.
Paramètres
Paramètres de l'étape :
Cloud to model distance parameters are derived from input spherefollowing basic parameters.
Downhill Simplex:
Cloud to model distance parameters are derived from input spherefollowing basic parameters.
Downhill Simplex:
- The downhill simplex search reaches it convergence criteria with[min size] 0.050 1e-3(m). .
- We set for the simplex search a maximal[ number of iterations] 100 ..
Données d'entrée
Structure des données d'entrée recherchées :
Result : Result spherefollowing parameters
...
Parameter Group (Group)
SphereFollowing parameters ()
Result : Input Cluster ID
...
Cluster ID Group (Group)
Cluster ID (Point qint32 attributes)
Result : Input Cloud
...
Cloud Group (Group)
Tree Cloud (Item with points)
Result : Result spherefollowing parameters
...
Parameter Group (Group)
SphereFollowing parameters ()
Result : Input Cluster ID
...
Cluster ID Group (Group)
Cluster ID (Point qint32 attributes)
Result : Input Cloud
...
Cloud Group (Group)
Tree Cloud (Item with points)
Références
Hackenberg Jan, Spiecker Heinrich, Calders Kim, Disney Mathias, Raumonen Pasi. 2015. SimpleTree - an efficient open source tool to build tree models from TLS clouds. Multidisciplinary Digital Publishing Institute. Forests.
Hackenberg Jan, Sheppard Jonathan, Spiecker Heinrich, Disney Mathias. 2014. Highly Accurate Tree Models Derived from Terrestrial Laser Scan Data: A Method Description. Multidisciplinary Digital Publishing Institute. Forests.
Rusu Radu Bogdan, Cousins Steve. 2011. 3d is here: Point cloud library (pcl). IEEE. Robotics and Automation (ICRA), 2011 IEEE International Conference on.
Hackenberg Jan, Sheppard Jonathan, Spiecker Heinrich, Disney Mathias. 2014. Highly Accurate Tree Models Derived from Terrestrial Laser Scan Data: A Method Description. Multidisciplinary Digital Publishing Institute. Forests.
Rusu Radu Bogdan, Cousins Steve. 2011. 3d is here: Point cloud library (pcl). IEEE. Robotics and Automation (ICRA), 2011 IEEE International Conference on.