Publications

Google Scholar Profile: http://scholar.google.com/citations?user=QJICfH4AAAAJ

Journal Publications 

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2011: Automated detection of branch dimensions in woody skeletons of fruit tree canopies 
Alexander Bucksch, Stefan Fleck
Photogrammetric Engineering & Remote Sensing Vol. 77, No. 3, pp. 229-240 LINK TO PUBLISHER

2010: SkelTre - Robust skeleton extraction from imperfect point clouds
Alexander Bucksch, Roderik Lindenbergh, Massimo Menenti
The Visual Computer, Vol.26, No. 10, pp. 1283-1300, DOI: 10.1007/s00371-010-0520-4 LINK TO PUBLISHER

2008: 3D Laser imaging as a valuable tool to specify changes in breast shape after augmentation mammaplasty
D.L. Esme, A.Bucksch, Werner H. Beekman
Aesthetic Plastic Surgery Volume 33, Number 2, page 191-195 DOWNLOAD

2008: CAMPINO - A skeletonization method for point cloud processing
A. Bucksch and R. Lindenbergh
ISPRS Journal of Photogrammetry and Remote Sensing, Vol.63, No.1, pp. 115-127 DOWNLOAD

 

Peer Reviewed Conference Publications

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List of Projects

NSF Genome-Wide Analysis of Root Traits

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I'm currently working within this project, which is a multidisciplinary collaboration connects plant biologists, molecular biologists, mathematicians, physicists, computer scientists, ecologists and educators together in an effort to identify the genes that control the root system architecture of crops.

The project webpage can be found at: http://www.rootnet.biology.gatech.edu/

 

3D-Canopy Analyzer

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In cooperation with: Stefan Fleck (University of Göttingen) and Thomas Abmayr (Zoller + Fröhlich GmbH)

 

 

The project aims to develop a new integrated system for automated canopy structure assessment and physiological modeling that is based on terrestrial laser-scanning. The system is developed and tested with integrated measurements of tree structure, light climate, photosynthesis, and transpiration in row plantations of apple and cherry trees. The approach is conducted by 3 partners and comprises 3 steps:
1. The 3D-laser scanner Imager 5003 (Zoller + Fröhlich GmbH, Wangen) is used to acquire 3D-point clouds from multiple view positions in order to represent canopy structure of single trees. The combination with a camera shall enable colour discrimination between points originating from branches, leaves and fruits. 2. colored point clouds are automatically segmented and canopy elements are approximated by surface functions (TU Delft). Allometric relationships to branch cross-sectional area will be employed to check plausibility of the resulting structure representation. 3. The structure representation is integrated with a 3D-light-model. Light acclimation of all single leaves is modelled based on measured relationships and a model of photosynthesis and transpiration will be employed on the leaf scale. Validation measurements of leaf photosynthesis, light acclimation, and branch transpiration are used to test the combined model of structure, light, and physiology on different levels of spatial integration.

 

 

Approximation of stem diameters of single standing trees from high density airborne data

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In cooperation with the ICT Dienst of the Rijkswaterstaat.

 

 

 

Together with the Data ICT Dienst of Rijkswaterstaat we investigate the potential of FLI-MAP 400 data to automatically measure forest inventory parameters of single standing trees. This focuses on the automatic stem diameter extraction as an important parameter for forest inventory. The goal of this project was to develop methods, which are able to delineate trees and filter them. In a second step it should be investigated if the stem diameter of these trees is extractable directly from the data, instead of using species depended allometric solutions. Further it should be demonstrated on a prototype, that a fully automatic system can be implemented from the found solutions.

 

 

Shape change description of breasts caused by implants

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In cooperation with Danielle Esme and Werner Beekman (Department of Plastic and Reconstructive Surgery,Tergooiziekenhuizen Hilversum)

 

Three-dimensional (3D) terrestrial laser scanning (TLS) is a valuable method for measuring shapes of objects and for obtaining quantitative measurements. These qualities of the 3D laser scanner have proved to be useful in reconstructive breast surgery. In this study various 3D parameters are investigated to obtain an objective visualization of the breast after cosmetic augmentation mammaplasty. In a second step the difference between round and anatomic implants are to be quantified.

 

 

Deformation analysis of the Rotterdam CS Tunnel with Terrestrial Laser Scanning

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A research project of Roderik Lindenbergh were I was partly involved

 

 

The goal of this project is to develop methods that are able to detect and measure deformations on simple solid constructions, like tunnels. The difficult part of this project is, that deformations are in the order of the noise level of the terrestrial laser scanner. Up to now 3 epochs were scanned in the Rotterdam CS tunnel. And The analysis of the data is carried out mainly by Master students of Geomatics.

Graduate Students

PhD Students

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Abhiram Das - Cloud computing for bioinformatic imaging applications (working title) - 2012 (on-going)

 

Master Students

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Shimantika Sharma - Computation of Genomic Fluidity - 2011 (on-going, professional M.sc. program)

Hoe-Ming Wong – Registration of range images using geometric features, 2011(on-going, Geomatics Master student at TU Delft)

Kristen Knipe – DynBio: An Educational Application to Facilitate the Instruction of Mathematical Modeling in Biology, 2011 Download (professional M.sc. program. Poster of the graduation project)

Lukasz Uchanski - Visualization of data gained in the Rotterdam CS metro tunnel, 2008 (Erasmus exchange student from Warsaw, Poland, who did parts of his Master Thesis in Delft) Download

Jane van Ree - Determination of the precision and reliability parameters of terrestrial laser scanners, 2006 Download (Thesis)

Adamantios Kagkaras - Laser scanning modeling of a Cessna Citation for Computational Fluid Dynamics (CFD) Studies, 2006 Download (Thesis)

Steven Alexander Sablerolle - Automatic registration of laser scanning data and colour images, 2006 Download (Thesis)