scholarly journals Radiometric Correction of Close-Range Spectral Image Blocks Captured Using an Unmanned Aerial Vehicle with a Radiometric Block Adjustment

2018 ◽  
Vol 10 (2) ◽  
pp. 256 ◽  
Author(s):  
◽  
Keyword(s):  
Unmanned Aerial Vehicle ◽  
Spectral Image ◽  
Radiometric Correction ◽  
Aerial Vehicle ◽  
Close Range

A Study of Unmanned Aerial Vehicle Photogrammetry for Environment Mapping: Preliminary Observation

2012 ◽  
Vol 626 ◽  
pp. 440-444 ◽  
Author(s):  
Munirah Radin Mohd Mokhtar ◽  
Abdul Nasir Matori ◽  
Hj Khamaruzaman Hj Wan Yusof ◽  
Imtiaz Ahmed Chandio ◽  
Duong Tuan Viet ◽  
...  
Keyword(s):  
Unmanned Aerial Vehicle ◽  
Preliminary Observation ◽  
Terrain Mapping ◽  
Excellent Performance ◽  
Flight Planning ◽  
Close Range Photogrammetry ◽  
Data Capturing ◽  
Aerial Vehicle ◽  
Close Range ◽  
Automated Image Processing

This paper presents the preliminary work is a part of a research focusing on close range photogrammetry for landslide monitoring.The main objective of this paper is to present the Close Range Photogrammetry (CRP) technique, Unmanned Aerial Vehicle (UAV) will provide a platform to monitor the surface area This method was applied using the capabilities and power of Gatewing, Unmanned Aerial Vehicle (UAV) for data capturing with respect to UAV tracking conducted in UTP, Tronoh, Perak, on 15th March 2012 at 150m height. The Gatewing is designed for rapid terrain mapping with fully automated image processing. The result proves that data processing were conducted by Srecthout Software. Flight planning was carried out on site, where the areas to be observed are situated inside the UTP campus. The paper focus on final production of an orthomosaic. In conclusion, it is demonstrated that Gatewing, UAV is the best, fast and powerful mapping vehicle for close range photogrammetry application in future works. It shows highly excellent performance compared to other UAVs already established in the market today. Keywords: Unmanned Aerial Vehicle (UAV); Close Range Photogrammetry (CRP); Gatewing; orthomosaic; terrain.

THE EFFECT OF VARIES CAMERA CALIBRATION FIELDS ON CAMERA PARAMETERS

2015 ◽  
Vol 77 (26) ◽  
Author(s):  
Ahmad Razali Yusoff ◽  
Mohd Farid Mohd Ariff ◽  
Khairulnizam M. Idris ◽  
Zulkepli Majid ◽  
Albert K. Chong
Keyword(s):  
Unmanned Aerial Vehicle ◽  
Camera Calibration ◽  
Range Camera ◽  
Aerial Mapping ◽  
Aerial Vehicle ◽  
Close Range ◽  
Camera Parameters ◽  
Mapping Purpose ◽  
Calibration Parameters

All photogrammetric applications need good camera parameters for mapping purpose, such as an Unmanned Aerial Vehicle (UAV) that encompassed with camera devices. Simple camera calibration is commonly used in many experiments in order to obtain the camera parameter’s value. In aerial mapping, interior camera parameters value of close-range camera calibration is used to correct the image error. However, the changes of the interior calibration parameters used need to be considered at different heights of mapping. Therefore, this research aims to contribute by analyzing of camera parameters’ changes from three heights using calibration field, and one camera calibration in the laboratory as commonly used. Camera distance heights of 15 metre, 25 metre, 55 metre, and 1.4 metre camera distance in the laboratory. The results show the changes in camera parameter’s value. Hence, value of camera calibration parameters of a camera is considered different and can change depend on the distance (height) of calibration.

Crop scouting using UAV imagery: a case study for potatoes

2020 ◽  
Vol 8 (2) ◽  
pp. 99-118
Author(s):  
Jérôme Théau ◽  
Erwan Gavelle ◽  
Patrick Ménard
Keyword(s):  
Unmanned Aerial Vehicle ◽  
Vegetation Indices ◽  
High Potential ◽  
Second Step ◽  
Biophysical Parameters ◽  
Production Time ◽  
Radiometric Correction ◽  
Aerial Vehicle ◽  
Potato Crops

Crop scouting is essential to manage crops such as potatoes and to detect stresses. In fact, conventional approaches require a lot of time and staff. The rise of unmanned aerial vehicle imagery offers interesting perspectives in this area. However, the development of interpreted and generalizable cartographic products that can be used directly by producers still poses challenges in terms of processing complexity and production time. The purpose of this study was to develop a tool for the phytosanitary surveillance of potato crops using scouting maps in support of conventional methods. The approach is based on relatively simple and efficient preprocessing methods when no radiometric correction data are available. The first step establishes the best correlations between some biophysical parameters directly related to phytosanitary problems and vegetation indices in the visible and infrared domains. The second step allows the development of an approach to classify the following three stresses: pests, diseases, and development problems. Validated by scouting field sites, the developed approach makes it possible to quickly produce accurate scouting maps that producers can use directly thanks to their high potential for generalization to other areas and crop productions.

Base Station for Monitoring of Unmanned Aerial Vehicle Flight

2013 ◽  
Vol 198 ◽  
pp. 182-187
Author(s):  
Maciej Słowik ◽  
Zdzisław Gosiewski
Keyword(s):  
Cellular Networks ◽  
Unmanned Aerial Vehicle ◽  
Mobile Networks ◽  
Data Transmission ◽  
Base Station ◽  
Telemetry Data ◽  
Communication Modes ◽  
Aerial Vehicle ◽  
Close Range ◽  
Telemetric Signals

A configuration of universal base station designed to use mobile networks for long-range transmission of telemetry data is described in the paper. Types of cellular networks and modes of their operation are presented. Next, GPRS system is shown as a possible method of data transmission between UAV and Base Station. Communication modes of the station can be augmented by additional close-range communication system based on Xbee modules. The configuration and integration of test stand for telemetric signals monitoring are shown. Finally, the modes of possible operations based on the conditions of mobile networks are described.

Study on Fault Diagnosis of Planetary Gearbox in Unmanned Aerial Vehicle Using Multi sensor Data

2020 ◽  
Vol 20 (4) ◽  
pp. 332-342
Author(s):  
Hyung Jun Park ◽  
Seong Hee Cho ◽  
Kyung-Hwan Jang ◽  
Jin-Woon Seol ◽  
Byung-Gi Kwon ◽  
...  
Keyword(s):  
Fault Diagnosis ◽  
Unmanned Aerial Vehicle ◽  
Sensor Data ◽  
Planetary Gearbox ◽  
Aerial Vehicle

Results of Spatial Structure of Atmosphere Radiation in a Spectral Range (1.5–2) µm Research

2018 ◽  
pp. 7-13
Author(s):  
Anton M. Mishchenko ◽  
Sergei S. Rachkovsky ◽  
Vladimir A. Smolin ◽  
Igor V . Yakimenko
Keyword(s):  
Spatial Structure ◽  
Unmanned Aerial Vehicle ◽  
Wavelength Range ◽  
Spectral Range ◽  
Near Ir ◽  
Optoelectronic Systems ◽  
Aerial Vehicle

Results of experimental studying radiation spatial structure of atmosphere background nonuniformities and of an unmanned aerial vehicle being the detection object are presented. The question on a possibility of its detection using optoelectronic systems against the background of a cloudy field in the near IR wavelength range is also considered.

Sign in / Sign up

Export Citation Format

Share Document