Remote sensing for resources development and environmental management: Remote sensing for resources development and environmental management

Damen, M. C. J.

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Multivolume work

Persistent identifier:: 856342815

Title:: Remote sensing for resources development and environmental management

Sub title:: proceedings of the 7th international Symposium, Enschede, 25 - 29 August 1986

Year of publication:: 1986

Place of publication:: Rotterdam; Boston

Publisher of the original:: A. A. Balkema

Identifier (digital):: 856342815

Language:: English

Additional Notes:: Volume 1-3 erschienen von 1986-1988

Editor:: Damen, M. C. J.

Document type:: Multivolume work

Volume

Persistent identifier:: 856343064

Title:: Remote sensing for resources development and environmental management

Sub title:: proceedings of the 7th international Symposium, Enschede, 25 - 29 August 1986

Scope:: XV, 547 Seiten

Year of publication:: 1986

Place of publication:: Rotterdam; Boston

Publisher of the original:: A. A. Balkema

Identifier (digital):: 856343064

Illustration:: Illustrationen, Diagramme

Signature of the source:: ZS 312(26,7,1)

Language:: English

Usage licence:: Attribution 4.0 International (CC BY 4.0)

Editor:: Damen, M. C. J.

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2016

Document type:: Volume

Collection:: Earth sciences

Chapter

Title:: 3 Spectral signatures of objects. Chairman: G. Guyot, Liaison: N. J. J. Bunnik

Document type:: Multivolume work

Structure type:: Chapter

Chapter

Title:: A preliminary assessment of an airborne thermal video frame scanning system for environmental engineering surveys. T. J. M. Kennie & C. D. Dale, G. C. Stove

Document type:: Multivolume work

Structure type:: Chapter

Symposium on Remote Sensing for Resources Development and Environmental Management / Enschede / August 1986 285 A preliminary assessment of an airborne thermal video frame scanning system for environmental engineering surveys T.J.M.Kennie & C.D.Dale University of Surrey, Guildford, UK G.C.Stove ERSAC Ltd, Livingston, Scotland, UK ABSTRACT : Video based camera systems are being used by an increasing number of remote sensing users. These systems offer several adv-antages in terms of ease of use, speed of operation, portability and cost. Of particular interest are the thermal video frame scanning (TVFS) systems. These scanners, developed primarily for military purposes, differ considerably in design from the thermal infrared linescanning instruments traditionally used for thermal surveys in remote sensing. One specific example, the Barr end Stroud IR18, is described together with the modifications necessary to mount such a system in a number of light aircraft. Methods of digitally enhancing and classifying single frames of data are discussed. The paper concludes by considering the application of suitably processed imagery for environmental engineering projects such as heat loss monitoring, thermal mapping of roads, geotechnical site investigations and drainage, sewer collapse and utility duct surveys. Further potential areas of application are also identified. RESUW: Les utilisateurs de télé-détection utilisent de plus en plus l'appareil photographiaue oui se fonde sur le video. Ges systems offrent plusieurs advantages - facilité d'usage, vitesse d'operation, portabilité, et coût. Les systèmes qui se basent sur l'explorateur thermique de cadre video (TVSF) sont d'intérêt particulier. Le dessin de ces appareils explorateurs qui étaient dévéloppés pour les buts militaires d'abord différent considérablement des instruments d'exploration thermique et linéaire qu'on emploie d'habitude pour les levés thermiques dans le télé-détection. On décrit un exemple spécifique, le Barr et Stroud IR 18, et aussi les modifications nécessaires pour installer un tel système dans quelques avions légers. On discute les méthodes digitales de rehausser et classifier les cadres uniques de données. Le papier conclut de considérer l'application des images traités pour les projets de génie de l'environnement, par exemple, la surveillance de la perte de chaleur, la cartographie thermique de routes, les investigations géotechniques de site et la surface de captation des eaux, l'effondrement des égouts, et les levés des conduits utilitaires. On identifie aussi les autres domaines d'application potentiale. 1 INTRODUCTION An increasing number of users in recent years have been considering the potential of video based aerial remote sensing systems. A wide variety of data acquisition systems are currently available and a selection of these are reported in section 2, together with some discusssion of the advantages of using video as a recording medium. One of the most exciting developments however, is in the use of thermal video frame scanners (TVFS) operated from light aircraft. The design features of such instruments, with particular reference to the Barr and Stroud IR18, are discussed in section 3. This is followed by details relating to the mounting of such a system in a variety of light aircraft. The use of digital image processsing techniques to filter and enhance single frames of thermal date is presented in section 4. The paper concludes by reporting some of the current projects for which the scanner has been used. 2 AIRBORNE VIDEO BASED DATA ACQUISITION SYSTEMS A summary of previous literature which has reported on the use of video based data acquisition systems is given in Table 1. Several advantages can be cited to demonstrate the benefits of video based systems, which include system portability, near real time verification of data capture, rapid turnaround (since there is no processing stage), low cost of operation and ease of duplication of data (Meisner and Lindstrom, 1985). In view of these perceived advantages a research programme was initiated by the University of Surrey, in conjunction with the University of Glasgow, in August 1984 to evaluate the use of a portable TVFS system for remote sensing applications. Although low resolution thermal imaging Table 1 Summery of previous literature video based date acquisition systems airborne Spectral Region Author(s) Application (0.4-0.70um) Panchromatic (0.4-0.7ym) 3 band colour (0.4-1.lpm) 3 band 'false' colour (0.55-l.lym) 4 band Multispectral (3-5.6u m, 8-14pm) Thermal Infrared Mussekowski, 1983 Water assessment Vlcek, 1983 Forestry Vlcek and Cheung, 1983 " Meisner and Lindstrom, 1985 Everitt Rangeland and Nixon, 1985 studies Nixon, Escobar and Vegetation Menges, 1985 studies Vlcek and King, 1984 Vegetation Vlcek, King and Vegetation Shemilt, 1984 Mapping Tice end Larsson, 1978 Heat loss Geraci and Celtebiano, 1983 Geraci, 1983 Clement, 1985 Amin, 1986 Oil pollutic Water qualit Water qualit Geothermal Mapping systems such as the Aga Thermovision have been used previously (Tice and Larsson, 1978, Geraci, 1983, and Geraci and Celtebiano, 1983) little attention has been focussed on the more expensive, but much higher performance, military forward looking infrared (FLIR) imaging systems.

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