Individual Tree Crown Delineation Using Multi Wavelength Titan Lidar Data
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Individual Tree Crown Delineation Using Multi Wavelength Titan Lidar Data
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Author : F . Naveed
language : en
Publisher: Infinite Study
Release Date :
Individual Tree Crown Delineation Using Multi Wavelength Titan Lidar Data written by F . Naveed and has been published by Infinite Study this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
The inability to detect the Emerald Ash Borer (EAB) at an early stage has led to the enumerable loss of different species of ash trees. Due to the increasing risk being posed by the EAB, a robust and accurate method is needed for identifying Individual Tree Crowns (ITCs) that are at a risk of being infected or are already diseased.
Individual Tree Crown Delineation Using Multispectral Lidar Data
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Author : Faizaan Naveed
language : en
Publisher: Infinite Study
Release Date :
Individual Tree Crown Delineation Using Multispectral Lidar Data written by Faizaan Naveed and has been published by Infinite Study this book supported file pdf, txt, epub, kindle and other format this book has been release on with Mathematics categories.
In this study, multispectral Light Detection and Ranging (LiDAR) data were utilized to improve delineation of individual tree crowns (ITC) as an important step in individual tree analysis. A framework to integrate spectral and height information for ITC delineation was proposed, and the multi-scale algorithm for treetop detection developed in one of our previous studies was improved. In addition, an advanced region-based segmentation method that used detected treetops as seeds was proposed for segmentation of individual crowns based on their spectral, contextual, and height information.
Multi 3d Window Dead Tree Detection Of Dead Standing Eucalyptus Camaldulensis From Voxelised Full Waveform Lidar Data For Tackling High Differences In Native Forests
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Author : Milto Miltiadou
language : en
Publisher:
Release Date : 2017
Multi 3d Window Dead Tree Detection Of Dead Standing Eucalyptus Camaldulensis From Voxelised Full Waveform Lidar Data For Tackling High Differences In Native Forests written by Milto Miltiadou and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.
Detection of dead trees is an important for managing biodiversity in native Australian forests. Most of the previous work on dead standing trees detection performs single tree crown delineation before health assessment. Nevertheless, classifications at tree level, while working with native forest is a challenge for multiple reasons: big spatial resolution, variance density of trees, different tree heights and sizes. Tree crown delineation is usually done by detecting local maxima from the canopy height model (CHM) and then segmenting trees using the watershed algorithm, but Eucalypt trees has multiple trunk splits making tree delineation difficult. Shendryk et al, 2016, published an interesting Eucalyptus delineation algorithm that performs segmentation from bottom to top, but pulse density was 36 points/m2 around forested areas (expensive to acquire for big spatial resolution). Miltiadou et al, 2018, attempted detection of dead Eucalypt trees without tree delineation using 3D-windows and showed that it is possible, but the methodology can be improved. The presented work, takes that research a step forward and uses multiple 3D windows charactering dead trees. A random forest classifier, a weighted-distance KNN algorithm are used to create a 2D probabilistic field for each 3D-window size. Then the results are merged, and the locations of the dead trees are predicted. It is shown that the multi-3D-window approach improved the results of the original research published work in 2018.
Coral Reef Remote Sensing
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Author : James A. Goodman
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-04-18
Coral Reef Remote Sensing written by James A. Goodman and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-04-18 with Technology & Engineering categories.
Remote sensing stands as the defining technology in our ability to monitor coral reefs, as well as their biophysical properties and associated processes, at regional to global scales. With overwhelming evidence that much of Earth’s reefs are in decline, our need for large-scale, repeatable assessments of reefs has never been so great. Fortunately, the last two decades have seen a rapid expansion in the ability for remote sensing to map and monitor the coral reef ecosystem, its overlying water column, and surrounding environment. Remote sensing is now a fundamental tool for the mapping, monitoring and management of coral reef ecosystems. Remote sensing offers repeatable, quantitative assessments of habitat and environmental characteristics over spatially extensive areas. As the multi-disciplinary field of coral reef remote sensing continues to mature, results demonstrate that the techniques and capabilities continue to improve. New developments allow reef assessments and mapping to be performed with higher accuracy, across greater spatial areas, and with greater temporal frequency. The increased level of information that remote sensing now makes available also allows more complex scientific questions to be addressed. As defined for this book, remote sensing includes the vast array of geospatial data collected from land, water, ship, airborne and satellite platforms. The book is organized by technology, including: visible and infrared sensing using photographic, multispectral and hyperspectral instruments; active sensing using light detection and ranging (LiDAR); acoustic sensing using ship, autonomous underwater vehicle (AUV) and in-water platforms; and thermal and radar instruments. Emphasis and Audience This book serves multiple roles. It offers an overview of the current state-of-the-art technologies for reef mapping, provides detailed technical information for coral reef remote sensing specialists, imparts insight on the scientific questions that can be tackled using this technology, and also includes a foundation for those new to reef remote sensing. The individual sections of the book include introductory overviews of four main types of remotely sensed data used to study coral reefs, followed by specific examples demonstrating practical applications of the different technologies being discussed. Guidelines for selecting the most appropriate sensor for particular applications are provided, including an overview of how to utilize remote sensing data as an effective tool in science and management. The text is richly illustrated with examples of each sensing technology applied to a range of scientific, monitoring and management questions in reefs around the world. As such, the book is broadly accessible to a general audience, as well as students, managers, remote sensing specialists and anyone else working with coral reef ecosystems.
Advances In Airborne Lidar Systems And Data Processing
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Author :
language : en
Publisher:
Release Date : 2018-05-11
Advances In Airborne Lidar Systems And Data Processing written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-05-11 with Science categories.
This book collects the papers in the special issue "Airborne Laser Scanning" in Remote Sensing (Nov. 2016) and several other selected papers published in the same journal in the past few years. Our intention is to reflect recent technological developments and innovative techniques in this field. The book consists of 23 papers in six subject areas: 1) Single photon and Geiger-mode Lidar, 2) Multispectral lidar, 3) Waveform lidar, 4) Registration of point clouds, 5) Trees and terrain, and 6) Building extraction. The book is a valuable resource for scientists, engineers, developers, instructors, and graduate students interested in lidar systems and data processing.
Remote Sensing Of Wetlands
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Author : Ralph W. Tiner
language : en
Publisher: CRC Press
Release Date : 2015-03-23
Remote Sensing Of Wetlands written by Ralph W. Tiner and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-03-23 with Science categories.
Effectively Manage Wetland Resources Using the Best Available Remote Sensing TechniquesUtilizing top scientists in the wetland classification and mapping field, Remote Sensing of Wetlands: Applications and Advances covers the rapidly changing landscape of wetlands and describes the latest advances in remote sensing that have taken place over the pa
The Fire And Fuels Extension To The Forest Vegetation Simulator
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Author : Elizabeth D. Reinhardt
language : en
Publisher:
Release Date : 2003
The Fire And Fuels Extension To The Forest Vegetation Simulator written by Elizabeth D. Reinhardt and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Coarse woody debris categories.
The Fire and Fuels Extension (FFE) to the Forest Vegetation Simulator (FVS) simulates fuel dynamics and potential fire behavior over time, in the context of stand development and management. Existing models of fire behavior and fire effects were added to FVS to form this extension. New submodels representing snag and fuel dynamics were created to complete the linkages. This report contains four chapters. Chapter 1 states the purpose and chronicles some applications of the model. Chapter 2 details the model's content, documents links to the supporting science, and provides annotated examples of the outputs. Chapter 3 is a user's guide that presents options and examples of command usage. Chapter 4 describes how the model was customized for use in different regions. Fuel managers and silviculturists charged with managing fire-prone forests can use the FFEFVS and this document to better understand and display the consequences of alternative management actions.
Forest Mensuration
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Author : Anthonie van Laar
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-07-20
Forest Mensuration written by Anthonie van Laar and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-07-20 with Technology & Engineering categories.
Van Laar and Akça’s popular text book, Forest Mensuration, was first published in 1997. Like that first edition, this modern update is based on extensive research, teaching and practical experience in both Europe, and the tropics and subtropics. However, it has also been extensively revised, and now includes chapters on remote sensing and the application of aerial photographs and satellite imagery. The book assumes no advanced knowledge of statistical methods, and combines practical techniques with important historical and disciplinary context. The result is a strong balance between a handbook and a valuable reference.
Forestry Applications Of Airborne Laser Scanning
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Author : Matti Maltamo
language : en
Publisher: Springer Science & Business Media
Release Date : 2014-04-08
Forestry Applications Of Airborne Laser Scanning written by Matti Maltamo and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-04-08 with Technology & Engineering categories.
Airborne laser scanning (ALS) has emerged as one of the most promising remote sensing technologies to provide data for research and operational applications in a wide range of disciplines related to management of forest ecosystems. This book provides a comprehensive, state-of-the-art review of the research and application of ALS in a broad range of forest-related disciplines, especially forest inventory and forest ecology. However, this book is more than just a collection of individual contributions – it consists of a well-composed blend of chapters dealing with fundamental methodological issues and contributions reviewing and illustrating the use of ALS within various domains of application. The reviews provide a comprehensive and unique overview of recent research and applications that researchers, students and practitioners in forest remote sensing and forest ecosystem assessment should consider as a useful reference text.
Tree And Forest Measurement
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Author : Phil West
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-09
Tree And Forest Measurement written by Phil West and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-09 with Technology & Engineering categories.
Everyone who works with forests must measure them, foresters, forestry students, scientists or forest owners. This book summarises modern forest measurement techniques for all those people. It describes how to measure forests, why they are measured and the basis of the science behind the measurements. Trees and forests are large and complex, but even something as difficult as the amount of wood they contain can be measured with quite unsophisticated equipment. This is a book written for all, from professional foresters to the lay person, in fact anyone who needs to measure forests anywhere in the world.