Uas for Geo-Information: Current Status and Perspectives

Haarbrink, R.

doi:10.5194/isprsarchives-xxxviii-1-c22-207-2011

Cited by 6 publications

(4 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Currently, legislative and regulatory authorities worldwide are faced with the challenge of striking a balance between different UAV-related economic, information, and safety needs [3,4]. If regulatory constraints are adjusted to respond better to actual social needs, UAVs may find use in a greater number of industries [5].…”

Section: Introductionmentioning

confidence: 99%

Use of Unmanned Aerial Vehicles (UAVs) for Updating Farmland Cadastral Data in Areas Subject to Landslides

Puniach

Bieda

Ćwiąkała

et al. 2018

IJGI

View full text Add to dashboard Cite

Abstract:The purpose of this study was to verify the applicability of unmanned aerial vehicles (UAVs) to update cadastral records in areas affected by landslides. Its authors intended to compare the accuracy of coordinates determined using different UAV data processing methods for points which form the framework of a cadastral database, and to find out whether products obtained as a result of such UAV data processing are sufficient to define the extent of changes in the cadastral objects. To achieve this, an experiment was designed to take place at the site of a landslide. The entire photogrammetry mission was planned to cover an area of more than 70 ha. Given the steep grade of the site, the UAV was flown over each line at a different, individually preset altitude, such as to ensure consistent mean shooting distance (height above ground level), and thus, appropriate ground sample distance (GSD; pixel size). The results were analyzed in four variants, differing from each other in terms of the number of control points used and the method of their measurement. This allowed identification of the factors that affect surveying accuracy and the indication of the cadastral data updatable based on an UAV photogrammetric survey.

show abstract

Section: Introductionmentioning

confidence: 99%

Use of Unmanned Aerial Vehicles (UAVs) for Updating Farmland Cadastral Data in Areas Subject to Landslides

Puniach

Bieda

Ćwiąkała

et al. 2018

IJGI

View full text Add to dashboard Cite

show abstract

“…The unmanned aerial vehicles (UAV) market has grown during the past years and it will continue growing in the coming ones [9] showing applicability in many fields such as surveying, video production and, being of the utmost importance, industrial inspection. The main advantage of using UAVs for inspection tasks is their ability to access complex and dangerous areas.…”

Section: Introductionmentioning

confidence: 99%

Payload for Contact Inspection Tasks with UAV Systems

González-deSantos

Martínez-Sánchez

González-Jorge

et al. 2019

Sensors

View full text Add to dashboard Cite

This paper presents a payload designed to perform semi-autonomous contact inspection tasks without any type of positioning system external to the UAV, such as a global navigation satellite system (GNSS) or motion capture system, making possible inspection in challenging GNSS- denied sites. This payload includes two LiDAR sensors which measure the distance between the UAV and the target structure and their inner orientation angle. The system uses this information to control the approaching of the UAV to the structure and the contact between both, actuating over the pitch and yaw signals. This control is performed using a hybrid automaton with different states that represent all the possible UAV status during the inspection tasks. It uses different control strategies in each state. An ultrasonic gauge has been used as the inspection sensor of the payload to measure the thickness of a metallic sheet. The sensor requires a stable contact in order to collect reliable measurements. Several tests have been performed on the system, reaching accurate results which show it is able to maintain a stable contact with the target structure.

show abstract

“…Currently, regulatory bodies face the alignment of economic, information and safety needs or demands connected to UAVs [30,45]. Once these limitations are better aligned with societal needs, UAVs might be employed for further fields of land administration including the monitoring of public infrastructure like oil and gas pipelines, power lines, dikes, highways and railways [46]. Nowadays,…”

Section: Application Of Uav-based Cadastral Mappingmentioning

confidence: 99%

Review of Automatic Feature Extraction from High-Resolution Optical Sensor Data for UAV-Based Cadastral Mapping

et al. 2016

View full text Add to dashboard Cite

Unmanned Aerial Vehicles (UAVs) have emerged as a rapid, low-cost and flexible acquisition system that appears feasible for application in cadastral mapping: high-resolution imagery, acquired using UAVs, enables a new approach for defining property boundaries. However, UAV-derived data are arguably not exploited to its full potential: based on UAV data, cadastral boundaries are visually detected and manually digitized. A workflow that automatically extracts boundary features from UAV data could increase the pace of current mapping procedures. This review introduces a workflow considered applicable for automated boundary delineation from UAV data. This is done by reviewing approaches for feature extraction from various application fields and synthesizing these into a hypothetical generalized cadastral workflow. The workflow consists of preprocessing, image segmentation, line extraction, contour generation and postprocessing. The review lists example methods per workflow step-including a description, trialed implementation, and a list of case studies applying individual methods. Furthermore, accuracy assessment methods are outlined. Advantages and drawbacks of each approach are discussed in terms of their applicability on UAV data. This review can serve as a basis for future work on the implementation of most suitable methods in a UAV-based cadastral mapping workflow.

show abstract

Uas for Geo-Information: Current Status and Perspectives

Cited by 6 publications

References 1 publication

Use of Unmanned Aerial Vehicles (UAVs) for Updating Farmland Cadastral Data in Areas Subject to Landslides

Use of Unmanned Aerial Vehicles (UAVs) for Updating Farmland Cadastral Data in Areas Subject to Landslides

Payload for Contact Inspection Tasks with UAV Systems

Review of Automatic Feature Extraction from High-Resolution Optical Sensor Data for UAV-Based Cadastral Mapping

Contact Info

Product

Resources

About