Controlled photogrammetry system for determination of volume and surface features in soils

Suchan, Jared; Azam, Shahid

doi:10.1016/j.mex.2021.101368

Cited by 5 publications

(1 citation statement)

References 7 publications

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“…17. These are images of sand and clay samples while they are wet and dry, these states are also evaluated qualitatively [22] Azizi, A. et al 2021, this study explains a computational method for using stereoscopic vision to assess soil roughness in agricultural places using in-field picture data. Soil surface roughness was evaluated using a depth map by estimating the height of plowing blocks.…”

Section: Digital Photogrammetric Modeling Using Close-range Photogram...mentioning

confidence: 99%

Evaluating The Approaches of the 3D Models Generation of a Soil Surface: A Review Study

Shaimaa Hailem Teamaa,

Jasim Ahmed Ali ALbaghdadi,

Farid Majid Abd

2023

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There are various approaches used to create 3D models of soil surfaces, including field surveying, photogrammetry and laser scanning methods. However, most of these methods are high cost, requiring many employees and long processing time. Thus, this study will evaluate these approaches and will show the merits and the significances of each approach used for 3D soil generations. The review study shows that the videogrammetric method is considered the efficient approach for 3D soil surface generation because it is economic, precise, fast, and needs few workers.

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Section: Digital Photogrammetric Modeling Using Close-range Photogram...mentioning

confidence: 99%

Evaluating The Approaches of the 3D Models Generation of a Soil Surface: A Review Study

Shaimaa Hailem Teamaa,

Jasim Ahmed Ali ALbaghdadi,

Farid Majid Abd

2023

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Possibilities of Using Fijiimagej2, Wipfrag and Basegrain Programs for Morphometric and Granulometric Soil Analysis

Tsytsiura

2023

Eng. Agríc.

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Influence of Desaturation and Shrinkage on Evaporative Flux from Soils

Suchan

Azam

2022

Geotechnics

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An assessment of evaporation losses from soils is critical for sustainable agriculture in semi-arid regions. The purpose of this research was to determine the effect of desaturation and shrinkage on evaporative flux from representative soils. Results indicated that the surface area did not change for silty sand (6% volume reduction) and substantially increased for lean clay (17% volume reduction). The evaporative flux for silty sand decreased from 31 to 25 mg/m2∙s in Stage II, remained constant during Stage III, and decreased to 11 mg/m2∙s in Stage IV. In contrast, the lean clay showed a longer Stage II (34 to 14 mg/m2∙s), a near constant Stage III, albeit a similar Stage IV (13 to 3 mg/m2∙s). The air entry and residual suction values were 1 kPa and 100 kPa for silty sand and 5 kPa and 1400 kPa for lean clay. In both soils, the total suction merged with the matric suction at Stage II–Stage III boundary. Furthermore, the shrinkage curve was J-shaped for silty sand with the only void ratio decrease in Stage II, whereas that for the lean clay showed a significant void ratio decrease in Stage II, marginal decrease in Stage III, and no decrease in Stage IV. Under high demand, the silty sand exhibited Stage III and Stage IV evaporation, whereas the lean clay also showed significant flux during Stage II. For the investigated range of water content, the total water loss under high demand was found to be 7 times that under low demand.

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Controlled photogrammetry system for determination of volume and surface features in soils

Cited by 5 publications

References 7 publications

Evaluating The Approaches of the 3D Models Generation of a Soil Surface: A Review Study

Evaluating The Approaches of the 3D Models Generation of a Soil Surface: A Review Study

Possibilities of Using Fijiimagej2, Wipfrag and Basegrain Programs for Morphometric and Granulometric Soil Analysis

Influence of Desaturation and Shrinkage on Evaporative Flux from Soils

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