An approach to the radiometric aerotriangulation of photogrammetric images

Hernández-López, David; García, Beatriz Felipe; González-Piqueras, José; Alcázar, Guillermo Villa

doi:10.1016/j.isprsjprs.2011.09.011

Cited by 30 publications

(11 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Among the possible materials that could function as control surfaces, we chose low-cost elements: a canvas with 6 different tones of grey and 6 PVC (polyvinyl chloride) vinyl sheets with different colors. For this calibration workflow, artificial targets were chosen instead of pseudo-invariant features, since they have proven to be more appropriate [18,37,38]. The critical factor for this selection is the requirement of uniform reflectivity with respect to the viewing direction and wavelength [38].…”

Section: Calibration Methodsmentioning

confidence: 99%

“…This behavior depends on the weather conditions and the characteristics of the sensor [17]. Analyzing and comparing these magnitudes to other field measurements, a vicarious calibration model is achieved [18] following the empirical line approach [19]. As a result, vicarious calibration allows physical quantities to be known in units of radiance (W· m −2 · sr −1 · nm −1 ) for any pixel from a single image in a particular camera channel.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Vicarious Radiometric Calibration of a Multispectral Camera on Board an Unmanned Aerial System

et al. 2014

View full text Add to dashboard Cite

Abstract:Combinations of unmanned aerial platforms and multispectral sensors are considered low-cost tools for detailed spatial and temporal studies addressing spectral signatures, opening a broad range of applications in remote sensing. Thus, a key step in this process is knowledge of multi-spectral sensor calibration parameters in order to identify the physical variables collected by the sensor. This paper discusses the radiometric calibration process by means of a vicarious method applied to a high-spatial resolution unmanned flight using low-cost artificial and natural covers as control and check surfaces, respectively.

show abstract

Section: Calibration Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Vicarious Radiometric Calibration of a Multispectral Camera on Board an Unmanned Aerial System

et al. 2014

View full text Add to dashboard Cite

show abstract

“…The outputs of the process are the parameters of the radiometric model, which can be used in the following processes to produce radiometrically corrected image products, such as reflectance mosaics, reflectance point clouds, or reflectance observations of objects of interest [44,163]. Similar approaches have previously been used with aircraft images [177][178][179][180].…”

Section: Radiometric Block Adjustmentmentioning

confidence: 99%

“…Radiometric block adjustment has been applied in studies with different settings to produce uniform image mosaics [163,[177][178][179][180]201]. Principally, the method can compensate for illumination changes during the flight campaign based on the information contained in the images.…”

Section: Radiometric Processingmentioning

confidence: 99%

Quantitative Remote Sensing at Ultra-High Resolution with UAV Spectroscopy: A Review of Sensor Technology, Measurement Procedures, and Data Correction Workflows

et al. 2018

View full text Add to dashboard Cite

In the last 10 years, development in robotics, computer vision, and sensor technology has provided new spectral remote sensing tools to capture unprecedented ultra-high spatial and high spectral resolution with unmanned aerial vehicles (UAVs). This development has led to a revolution in geospatial data collection in which not only few specialist data providers collect and deliver remotely sensed data, but a whole diverse community is potentially able to gather geospatial data that fit their needs. However, the diversification of sensing systems and user applications challenges the common application of good practice procedures that ensure the quality of the data. This challenge can only be met by establishing and communicating common procedures that have had demonstrated success in scientific experiments and operational demonstrations. In this review, we evaluate the state-of-the-art methods in UAV spectral remote sensing and discuss sensor technology, measurement procedures, geometric processing, and radiometric calibration based on the literature and more than a decade of experimentation. We follow the 'journey' of the reflected energy from the particle in the environment to its representation as a pixel in a 2D or 2.5D map, or 3D spectral point cloud. Additionally, we reflect on the current revolution in remote sensing, and identify trends, potential opportunities, and limitations.

show abstract

“…There is much current active research in the radiometric calibration of aerial optical data to ground reflectance (e.g. Haest et al 2009;Alverez et al 2010;Lopez et al 2011;Collings et al 2011) representing various combinations of empirical and physical modelling. Some of the complications in achieving good radiometric calibration are caused by incomplete descriptions of various measurement systems (Honkavaara et al 2009;Markelin et al 2010;Cramer 2009).…”

Section: Introductionmentioning

confidence: 99%

Monitoring land surface and cover in urban and peri-urban environments using digital aerial photography

Caccetta

Collings

Devereux

et al. 2015

International Journal of Digital Earth

View full text Add to dashboard Cite

This paper describes the development of a system for decimetre-scale monitoring of land-surface and land-cover in urban and peri-urban environments. We describe our methodology that comprises the application of highly automated processing and analysis methods to digital aerial photography. The approach described in this paper addresses a monitoring need by providing the ability to generate change information at a spatial resolution suitable for urban, peri-urban and coastal areas, where an increasing percentage of the worlds' population dwells. These areas are dynamic, with many environmental issues associated with planning, service provision, resource management and allocation, as well as monitoring regulatory compliance. We present a system based on standardised data and methods, which is able to track and communicate changes in features of interest in a way that has not been previously possible. We describe the methodology and then demonstrate its feasibility by applying it to geographic areas of planning and policy relevant size (the order of tens of thousands of square kilometres). We demonstrate the approach by applying it to the problem of urban forest assessment.

show abstract

An approach to the radiometric aerotriangulation of photogrammetric images

Cited by 30 publications

References 17 publications

Vicarious Radiometric Calibration of a Multispectral Camera on Board an Unmanned Aerial System

Vicarious Radiometric Calibration of a Multispectral Camera on Board an Unmanned Aerial System

Quantitative Remote Sensing at Ultra-High Resolution with UAV Spectroscopy: A Review of Sensor Technology, Measurement Procedures, and Data Correction Workflows

Monitoring land surface and cover in urban and peri-urban environments using digital aerial photography

Contact Info

Product

Resources

About