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Sebastian Haug - Plant Classification and Position Estimation for Autonomous Field Robots

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Sebastian Haug

Plant Classification and Position Estimation for Autonomous Field Robots

Series: Informatik/ Kommunikation

Volume 870 2020

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Plant Position Estimation S. 70-95

„… 5 Plant Position Estimation An important property of a plant is its location in the field which can …” „… presents a novel method for plant stem position estimation: The goal is a solution to the general plant …” „… position estimation task, where the stem positions of all plants (i.e. both crop and weed) in the image …”

Experimental Results and Discussion S. 96-128

„… and plant classification and position estimation system developed in this thesis is mounted in the …” „… position estimation for single plant weed control a specific app is constructed for the Bonirob V2 as …” „… developed plant classification and position estimation system. Figure 6.3 shows in detail how the …”

Introduction S. 1-8

„… art for plant classification, plant detection and position estimation is reviewed. A detailed analysis …” „… possible. Plant Detection and Position Estimation The detection of plants and the estimation of their …” „… good initial segmentation of plants, situations with overlap make position estimation difficult and …”

Titelei/Inhaltsverzeichnis S. I-XII

„… Reihe 10 Plant Classification and Position Estimation for Autonomous Field Robots Institut für …” „… Seite 1 PI TS TO PS ER VE R Plant Classification and Position Estimation for Autonomous Field Robots Von …” „… Fortschritt-Berichte VDI Plant Classification and Position Estimation for Autonomous Field Robots Dipl.-Ing …”

Conclusion S. 129-138

„… row. Additionally, a plant stem detection and position estimation method extracts the position of …” „… , plant classification as well as plant detection and position estimation. As presented in the evaluation …” „… classification and position estimation pipelines. Plant Classification The novel plant classification system …”

Bibliography S. 139-154

„… , J. West, and J.-H. Hatier. Estimation in the field of individual perennial ryegrass plant position …” „… . Michaels, and J. Ostermann. Plant stem detection and position estimation using machine vision. In Workshop …” „… . Robot for weed species plant-specific management. Journal of Field Robotics, 34(6):1179–1199, 2017. [5 …”

Multispectral Image Acquisition and Vegetation Segmentation S. 24-39

„… and position estimation tasks, which are developed in the next chapters. 39 …” „… acquisition methodology and the developed vegetation segmentation method. For plant classification a …” „… mean image resolution at ground plane distance. 3.1.1 Red-Edge Property of Plants Plants exhibit a very …”

Plant Classification S. 40-69

„… Classification extract the patch or not. For plant classification, the filtering step rejects window positions …” „… : w stride • and the filtering function to reject window positions without plants. The patch size must …” „… estimation is still only available for a fraction of the plant pixels. The goal of this step is to yield an …”

doi.org/10.51202/9783186870100

VDI Wissensforum GmbH - LAND.TECHNIK 2020

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VDI Wissensforum GmbH (ed.)

LAND.TECHNIK 2020

Series: VDI-Berichte

Volume 2374 2020

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P. Riegler-Nurscher, J. Prankl, M. Vincze, H. Prankl A review on plant and soil properties estimation using ground-based computer vision techniques in the visible spectrum S. 353-360

„… A review on plant and soil properties estimation using ground-based computer vision techniques in …” „… , Wieselburg Abstract The estimation of plant and soil properties is the basis for sustainable …” „… , open challenges, solutions and trends for the estimation of soil and plant properties are discussed …”

L. Trösken, L. Frerichs Process model for an economic evaluation of cultivation methods on agricultural farms S. 435-444

„… basis. Figure 1 shows the general procedure. Information about the position of sites and fields, the …” „… , fertilizer, seeds and plant care products) and fuel as well as machine costs. So it is able to show the …” „… approach for estimation [5], in which the reduction is derived on a linear basis according to the useful …”

doi.org/10.51202/9783181023747

VDI Wissensforum GmbH - Land.Technik AgEng 2017

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VDI Wissensforum GmbH (ed.)

Land.Technik AgEng 2017

Series: VDI-Berichte

Volume 2300 2017

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P. Riegler-, J. Karner, J. Huber, G. Moitzi, H. Wagentristl, M. Hofinger, H. Prankl A system for online control of a rotary harrow using soil Nurscher, roughness detection based on stereo vision S. 559-566

„… to increase plant emergence and to reduce the risk of soil erosion. For the regulation of the …” „… mounting position of the camera. Soil roughness is influenced by soil cloddiness and soil surface …” „… . 2. Roughness measurements The roughness estimation is based on a stereo camera setup. To get an …”

J. Redenius, M. Dingwerth, A. Ruckelshausen, J. Hertzberg, T. Krause, B. Kettelhoit A multilevel simulation framework for highly automated harvest processes enabled by environmental sensor systems S. 157-164

„… process prior to navigation. An appropriate mapping of plants and soil, yield parameters, possible …” „… Environmental Sensor Systems The environmental sensor models relate to the respective machine position and form …” „… as sensor systems and other plant species will be discussed in the further course of the project …”

doi.org/10.51202/9783181023006

Maxim Stuckert - Theory and Application of the Lang-Gilles Observer for Distillation Processes

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Maxim Stuckert

Theory and Application of the Lang-Gilles Observer for Distillation Processes

Series: Mess-, Steuerungs- und Regelungstechnik

Volume 1253 2016

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Titelei/Inhaltsverzeichnis S. I-XII

„… – Tray-efficiency estimator – Model predictive control – Plant-model mismatch – Large-scale simulation This thesis …” „… observer parameters. We also give a method for the on-line estimation of the Murphree tray efficiency …” „… investigate the capabilities of the observer for the estimation of the tray efficiency and for …”

Application of the Lang-Gilles observer in distillation control S. 97-118

„… state observer for estimation of the vapor ow rate and the position of the temperature front in a …” „… problems in complex plants. In modern chemical plants, thousands of PID regulators may be installed while …” „… a single one for the entire plant are developed. The control problem with a common control target is …”

Analysis of the Lang-Gilles observer S. 52-81

„… quality. Consequently, a number of nonlinear state estimation schemes were proposed and some of them were …” „… references concerned with nonlinear state estimation in distillation columns. To start with, the well-known …” „… taken only at two points of a real pilot plant. The authors note that additional temperature …”

Bibliography S. 144-157

„… . Álvarez and C. Fernández. Geometric estimation of nonlinear process systems. Journal of Process Control …” „… . Development of a composition estimator for binary distillation columns. application to a pilot plant. Chemical …” „… , R. L. Jones, and J. M. Prausnitz. Group-contribution estimation of activity coe cients in nonideal …”

Dynamic distillation modeling S. 8-51

„… parametric form of the multicomponent Murphree e ciency. This e ciency model is incorporated in our plant …” „… Section 2.2. We will also highlight the similarities and di erences between the plant replacement and …” „… plant, where it not only proved its reliability and e ciency in eld tests but also in two yeas of …”

doi.org/10.51202/9783186253088

Michael Pagel - Model-based diagnosis of electronic cooling fan drive systems

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Michael Pagel

Model-based diagnosis of electronic cooling fan drive systems

Series: Mess-, Steuerungs- und Regelungstechnik

Volume 1262 2018

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Fault Detection and Diagnosis: Application S. 99-117

„… EoL-stages of the engine cooling fan are considered. 1. The rst stage happens in the plant of the supplier …” „… electrical motor, such as winding resistance or ux linkage over rotor position angle. 2. The second stage is …” „… in the plant of the car manufacturer with the complete engine cooling fan module (i.e. electrical …”

Fault Detection and Diagnosis of the electrical motor: Online Parameter Acquisition S. 40-98

„… estimation techniques is not always possible, as this demands injection of speci c test sequences, such as …” „… : determination via parameter estimation or by injection of an AC (Alternating Current)- respectively DC (Direct …” „… Gorter et al. (1995) use both linear and nonlinear models which serve as a basis for estimation of …”

doi.org/10.51202/9783186262080

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