Výsledky vyhledávání - "Irfan Akhtar Iqbal"

A comparison of area-based forest attributes derived from airborne laser scanner, small-format and medium-format digital aerial photography

Autor: Christine Stone, Jon Osborn, Irfan Akhtar Iqbal, RA Musk, Arko Lucieer

Publikováno v: International Journal of Applied Earth Observation and Geoinformation. 76:231-241

Forest inventory operations have greatly benefitted from remotely sensed data particularly airborne laser scanning (ALS) which has become a popular technology choice for large-area forest inventories. For remote regions, for fragmented estates or for

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::05838894d5e34ac1e2c14f2f583ecbea
https://doi.org/10.1016/j.jag.2018.12.002

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Evaluating the robustness of point clouds from small format aerial photography over a Pinus radiata plantation

Autor: Christine Stone, M Dell, Arko Lucieer, Jon Osborn, Irfan Akhtar Iqbal, C. McCoull

Publikováno v: Australian Forestry. 81:162-176

Extensive research and operational trials over the past 20 years have led to the operational implementation of airborne laser scanning (ALS)-based forest inventory becoming increasingly common. More recently, digital aerial photography (AP), processe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::409ecebc5ffe63c1d2bb09e4455c01a6
https://doi.org/10.1080/00049158.2018.1482799

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Comparing yield estimates derived from LiDAR and aerial photogrammetric point-cloud data with cut-to-length harvester data in a Pinus radiata plantation in Tasmania

Autor: D. Aurik, G. Caccamo, Christine Stone, H. Bi, K. Arkley, Irfan Akhtar Iqbal, G. Melville, Jon Osborn

Publikováno v: Australian Forestry. 81:131-141

Accurate mapping of timber resources in commercial forestry is essential to support planning and management operations of forest growers. Over the last two decades, Light Detection and Ranging (LiDAR) systems have been successfully deployed for the c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bec8597e4b23aed510df29c1ae59554c
https://doi.org/10.1080/00049158.2018.1458582

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A Comparison of ALS and Dense Photogrammetric Point Clouds for Individual Tree Detection in Radiata Pine Plantations

Autor: Arko Lucieer, Christine Stone, Jon Osborn, Irfan Akhtar Iqbal

Publikováno v: Remote Sensing, Vol 13, Iss 3536, p 3536 (2021)
Remote Sensing; Volume 13; Issue 17; Pages: 3536

Digital aerial photogrammetry (DAP) has emerged as a potentially cost-effective alternative to airborne laser scanning (ALS) for forest inventory methods that employ point cloud data. Forest inventory derived from DAP using area-based methods has bee

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d965f38b28bffaa9d8faf51cf4381ae9
https://doi.org/10.3390/rs13173536

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Alternatives to LiDAR-derived canopy height models for softwood plantations: a review and example using photogrammetry

Autor: MJ Webster, Jon Osborn, Irfan Akhtar Iqbal, Christine Stone

Publikováno v: Australian Forestry. 79:271-282

Airborne LiDAR data is now commonly acquired by the Australian plantation sector in order to generate accurate digital terrain models and canopy height models at high spatial resolution for resource assessment estimates. However, these airborne surve

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b19bb390d2d8abaacf92126d38b24ead
https://doi.org/10.1080/00049158.2016.1241134

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A novel approach to estimate canopy height using ICESat/GLAS data

Autor: Ghayyas Ahmad, Jadunandan Dash, Irfan Akhtar Iqbal, Saleem Ullah

Publikováno v: International Journal of Applied Earth Observation and Geoinformation (JAG), 23, 109-118. Elsevier

The Geoscience Laser Altimeter System (GLAS) aboard Ice, Cloud and land Elevation Satellite (ICESat) is a spaceborne LiDAR sensor. It is the first LiDAR instrument which can digitize the backscattered waveform and offer near global coverage. Among ot

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ea064a8925756427dc4eafbef6082099
https://doi.org/10.1016/j.jag.2012.12.009

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Accuracy assessment of digital elevation model generated from pleiades tri stereo-pair

Autor: Atif Shahzad, Irfan Akhtar Iqbal, Zahir Ali, Salman Nasir

Publikováno v: 2015 7th International Conference on Recent Advances in Space Technologies (RAST).

Digital Elevation Model (DEM) is crucial for several purposes like town planning, hydrological analysis, land sliding, flash floods, earthquake, road construction, surface analysis, ortho-rectification of satellite imagery, 3D visualization, precise

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e020c8eb9b09eaa833fbf28b04515786
https://doi.org/10.1109/rast.2015.7208340

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Estimation of grassland biomass and nitrogen using MERIS data

Autor: Yali Si, Saleem Ullah, Irfan Akhtar Iqbal, Muhammad Shafique, Martin Schlerf, Andrew K. Skidmore

Publikováno v: International Journal of applied Earth Observation and Geoinformation 19 (2012) 1
International Journal of applied Earth Observation and Geoinformation, 19(1), 196-204
International Journal of Applied Earth Observation and Geoinformation (JAG), 19, 196-204. Elsevier

This study aimed to investigate the potential of MERIS in estimating the quantity and quality of a grassland using various vegetation indices (NDVI, SAVI, TSAVI, REIP, MTCI and band depth analysis parameters) at a regional scale. Green biomass was be

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4d7b31cc35aa7883e39b4fbae3e6fc1
https://research.wur.nl/en/publications/estimation-of-grassland-biomass-and-nitrogen-using-meris-data

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