Relevant bibliographies by topics / Canopy volume detection

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Canopy volume detection'

Author: Grafiati
Published: 25 May 2024
Last updated: 31 July 2025

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Journal articles on the topic "Canopy volume detection"

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Wang, Mengmeng, Hanjie Dou, Hongyan Sun, Changyuan Zhai, Yanlong Zhang, and Feixiang Yuan. "Calculation Method of Canopy Dynamic Meshing Division Volumes for Precision Pesticide Application in Orchards Based on LiDAR." Agronomy 13, no. 4 (2023): 1077. http://dx.doi.org/10.3390/agronomy13041077.

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The canopy volume of fruit trees is an important input for the precise and varying application of pesticides in orchards. The fixed mesh division method is mostly used to calculate canopy volumes with variable target-oriented spraying. To reduce the influence of the working speed on the detection accuracy under a fixed mesh width division, the cuboid accumulation of divided areas (CADAs), which is a light detection and ranging (LiDAR) online detection method for a fruit tree canopy volume based on dynamic mesh division, is proposed in this paper. In the method, the area is divided according to
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Gu, Chenchen, Xiu Wang, Xiaole Wang, Fuzeng Yang, and Changyuan Zhai. "Research Progress on Variable-Rate Spraying Technology in Orchards." Applied Engineering in Agriculture 36, no. 6 (2020): 927–42. http://dx.doi.org/10.13031/aea.14201.

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HighlightsReview the research status of variable-rate spraying technology and point out the direction for the future researchDiscussed the advantages and disadvantages of different techniques to detect canopy volume and canopy biomassThe air speed and volume adjustment need to be controlled based on the canopy detection systemAbstract. Variable-rate pesticide application in orchards aims to solve the problems of low pesticide utilization rates and serious environmental pollution in traditional pesticide applications. In this article, we have reviewed the research status of the technology to po
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Gang, Min-Seok, Thanyachanok Sutthanonkul, Won Suk Lee, Shiyu Liu, and Hak-Jin Kim. "Estimation of Strawberry Canopy Volume in Unmanned Aerial Vehicle RGB Imagery Using an Object Detection-Based Convolutional Neural Network." Sensors 24, no. 21 (2024): 6920. http://dx.doi.org/10.3390/s24216920.

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Estimating canopy volumes of strawberry plants can be useful for predicting yields and establishing advanced management plans. Therefore, this study evaluated the spatial variability of strawberry canopy volumes using a ResNet50V2-based convolutional neural network (CNN) model trained with RGB images acquired through manual unmanned aerial vehicle (UAV) flights equipped with a digital color camera. A preprocessing method based on the You Only Look Once v8 Nano (YOLOv8n) object detection model was applied to correct image distortions influenced by fluctuating flight altitude under a manual mane
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Roman, Carla, Hongyoung Jeon, Heping Zhu, Javier Campos, and Erdal Ozkan. "Stereo Vision Controlled Variable Rate Sprayer for Specialty Crops: Part II. Sprayer Development and Performance Evaluation." Journal of the ASABE 66, no. 5 (2023): 1005–17. http://dx.doi.org/10.13031/ja.15578.

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Highlights A real time stereo vision controlled variable rate sprayer for specialty crops was developed. The stereo vision system of the sprayer detected outdoor trees with similar canopy profiles under travel speeds ranging from 3.2 to 8 km h-1. Canopy volume measurements of the sprayer were impacted by lateral distances between the sprayer and the tree center and travel speeds. The sprayer required less than 200 ms from tree canopy detection to spray decisions. The sprayer achieved spray volume reductions from 72.6% to 80.5% compared to constant rate spray application. Abstract. A real time
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Gu, Chenchen, Changyuan Zhai, Xiu Wang, and Songlin Wang. "CMPC: An Innovative Lidar-Based Method to Estimate Tree Canopy Meshing-Profile Volumes for Orchard Target-Oriented Spray." Sensors 21, no. 12 (2021): 4252. http://dx.doi.org/10.3390/s21124252.

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Canopy characterization detection is essential for target-oriented spray, which minimizes pesticide residues in fruits, pesticide wastage, and pollution. In this study, a novel canopy meshing-profile characterization (CMPC) method based on light detection and ranging (LiDAR)point-cloud data was designed for high-precision canopy volume calculations. First, the accuracy and viability of this method were tested using a simulated canopy. The results show that the CMPC method can accurately characterize the 3D profiles of the simulated canopy. These simulated canopy profiles were similar to those
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Zhou, Huitao, Weidong Jia, Yong Li, and Mingxiong Ou. "Method for Estimating Canopy Thickness Using Ultrasonic Sensor Technology." Agriculture 11, no. 10 (2021): 1011. http://dx.doi.org/10.3390/agriculture11101011.

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The accurate detection of canopy characteristics is the basis of precise variable spraying. Canopy characteristics such as canopy density, thickness and volume are needed to vary the pesticide application rate and adjust the spray flow rate and air supply volume. Canopy thickness is an important canopy dimension for the calculation of tree canopy volume in pesticide variable spraying. With regard to the phenomenon of ultrasonic waves with multiple reflections and the further analysis of echo signals, we found that there is a proportional relationship between the canopy thickness and echo inter
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Saha, Kowshik Kumar, Nikos Tsoulias, Cornelia Weltzien, and Manuela Zude-Sasse. "Estimation of Vegetative Growth in Strawberry Plants Using Mobile LiDAR Laser Scanner." Horticulturae 8, no. 2 (2022): 90. http://dx.doi.org/10.3390/horticulturae8020090.

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Monitoring of plant vegetative growth can provide the basis for precise crop management. In this study, a 2D light detection and ranging (LiDAR) laser scanner, mounted on a linear conveyor, was used to acquire multi-temporal three-dimensional (3D) data from strawberry plants (‘Honeoye’ and ‘Malling Centenary’) 14–77 days after planting (DAP). Canopy geometrical variables, i.e., points per plant, height, ground projected area, and canopy volume profile, were extracted from 3D point cloud. The manually measured leaf area exhibited a linear relationship with LiDAR-derived parameters (R2 = 0.98, 0
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Lim, Kevin, Paul Treitz, Michael Wulder, Benoît St-Onge, and Martin Flood. "LiDAR remote sensing of forest structure." Progress in Physical Geography: Earth and Environment 27, no. 1 (2003): 88–106. http://dx.doi.org/10.1191/0309133303pp360ra.

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Light detection and ranging (LiDAR) technology provides horizontal and vertical information at high spatial resolutions and vertical accuracies. Forest attributes such as canopy height can be directly retrieved from LiDAR data. Direct retrieval of canopy height provides opportunities to model above-ground biomass and canopy volume. Access to the vertical nature of forest ecosystems also offers new opportunities for enhanced forest monitoring, management and planning.
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Jiang, Yinlong, Jieli Duan, Yang Li, Jiaxiang Yu, Zhou Yang, and Xing Xu. "Fruit Orchard Canopy Recognition and Extraction of Characteristics Based on Millimeter-Wave Radar." Agriculture 15, no. 13 (2025): 1342. https://doi.org/10.3390/agriculture15131342.

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Fruit orchard canopy recognition and characteristic extraction are the key problems faced in orchard precision production. To this end, we built a fruit tree canopy detection platform based on millimeter-wave radar, verified the feasibility of millimeter-wave radar from the two perspectives of fruit orchard canopy recognition and canopy characteristic extraction, and explored the detection accuracy of millimeter-wave radar under spray conditions. For fruit orchard canopy recognition, based on the DBSCAN algorithm, an ellipsoid model adaptive clustering algorithm based on a variable-axis (E-DBS
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Colaço, A. F., R. G. Trevisan, J. P. Molin, J. R. Rosell-Polo, and A. Escolà. "Orange tree canopy volume estimation by manual and LiDAR-based methods." Advances in Animal Biosciences 8, no. 2 (2017): 477–80. http://dx.doi.org/10.1017/s2040470017001133.

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LiDAR (Light detection and ranging) technology is an alternative to current manual methods of canopy geometry estimations in orange trees. The objective of this work was to compare different types of canopy volume estimations of orange trees, some inspired on manual methods and others based on a LiDAR sensor. A point cloud was generated for 25 individual trees using a laser scanning system. The convex-hull and the alpha-shape surface reconstruction algorithms were tested. LiDAR derived models are able to represent orange trees more accurately than traditional methods. However, results differ s
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Dissertations / Theses on the topic "Canopy volume detection"

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Mohammadi, Vahid. "Design, Development and Evaluation of a System for the Detection of Aerial Parts and Measurement of Growth Indices of Bell Pepper Plant Based on Stereo and Multispectral Imaging." Electronic Thesis or Diss., Bourgogne Franche-Comté, 2022. http://www.theses.fr/2022UBFCK109.

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Au cours de la croissance des plantes, leur suivi apporte beaucoup d'avantages aux producteurs. Cette surveillance comprend la mesure des propriétés physiques, le comptage des feuilles des plantes, la détection des plantes et leur séparation des mauvaises herbes. Toutes ces techniques peuvent être réalisées de différentes manières, cependant, les techniques favorables sont non destructives car la plante est une créature très sensible que toute manipulation peut perturber sa croissance ou entraîner la perte de feuilles ou de branches. Les techniques d'imagerie sont les meilleures solutions pour
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Books on the topic "Canopy volume detection"

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Magistrale, Tony. Student Companion to Edgar Allan Poe. Greenwood, 2001. http://dx.doi.org/10.5040/9798216020264.

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The contributions of Edgar Allan Poe have withstood the test of time; his best poems and fiction are more popular and carry greater significance now than they did during his own era. This highly readable introduction to the life, times, and major works of Poe offers fresh interpretations of timeless masterpieces like The Raven and The Purloined Letter. Carefully considering important thematic elements as well as genre, this book organizes the works of Poe into four significant groupings: the poetry, Vampiric love stories, tales of psychological terror, and the detective stories. Close readings
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Baker, William, and Kenneth Womack, eds. A Companion to the Victorian Novel. Greenwood, 2002. http://dx.doi.org/10.5040/9798400629464.

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Victorian novels remain enormously popular today: some continue to be made into films, while authors such as Charles Dickens and George Eliot are firmly established in the canon and taught at all levels. These works have also attracted a great deal of critical attention, with much current scholarship examining the novel in relation to its historical, political, and cultural contexts. This reference book is an introductory guide to the Victorian novel, its background, and its legacy. Each chapter is written by an expert contributor and offers a fresh account of past, current, and new directions
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Book chapters on the topic "Canopy volume detection"

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Herbert, Rosemary. "Sir Arthur Conan Doyle (1859–1930)." In Murder on Deck! Oxford University PressNew York, NY, 1998. http://dx.doi.org/10.1093/oso/9780195086034.003.0001.

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Abstract It seems appropriate to launch a volume of shipboard and shoreline mystery stories with a tale of murder, mayhem, and mutiny on deck. This also happens to be the account of the first case undertaken by the world’s great consulting detective, Sherlock Holmes. Although Holmes was introduced in Sir Arthur Conan Doyle’s “A Study in Scarlet” in 1887, “The ‘Gloria Scott,’” published six years later, holds a special place in the canon of Holmes stories. Here Holmes recounts the case that revealed to him that his extraordinary skills at observation might serve him-and others in need-as more t
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Conference papers on the topic "Canopy volume detection"

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Zhang, J., G. Liu, and J. Wang. "EXTRACTION AND MODELING OF INDIVIDUAL SIKANG PINE STEM BASED ON POINT CLOUD DATA." In Лесные экосистемы в условиях изменения климата: биологическая продуктивность и дистанционный мониторинг. Crossref, 2020. http://dx.doi.org/10.25686/7228.2020.6.58826.

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Forest structure parameters are important parameters in tree volume and biomass estimation. Sikang pine (Pinus densata) is one of the main coniferous species and the pioneering tree species for barren mountain afforestation in western China. Its stem has the characteristics of tall and straight and has important timber value. In order to promote the ecological study of Sikang pine forest, with the point cloud of Sikang pine natural forest obtained by terrestrial laser scanning as the data source, the point cloud clustering algorithm based on Euclidean distance, the comparative shortest-path al
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Lifeng, Zhou, Cheng Zhaoyu, Cai Jiafan, and Tang Yi. "In-Service Inspection Technology Research on CANOPY Seal Weld of Control Rod Drive Mechanism in PWR." In 2017 25th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/icone25-66999.

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The cracking of CANOPY Seal Weld (CSW) of the Control Rod Drive Mechanism (CRDM) ever occurred and led to Boric acid solution leakage in nuclear power plant worldwide. The failure analysis on above failure CSW shows that stress corrosion crack (SCC) is main failure mode of CSW, and the crack usually originate from the weld root and grows along weld or HAZ under PWR service environment. The CSW structure parameter presented here are as following, the wall thickness is 2–3 mm, radius of curvature of cross-section is 6–12 mm, and the gyration radius is 50–100mm. In the latest year, CSW is require
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Forget, Magali, and Mark Davies. "Liquid Bridges: A Novel Approach for Dispensing Biofluids, Characterisation and Correlations." In ASME 2007 5th International Conference on Nanochannels, Microchannels, and Minichannels. ASMEDC, 2007. http://dx.doi.org/10.1115/icnmm2007-30099.

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Control of fluids at the microscale represents an important point of interest in the widely studied field of Microfluidics. In fact, most of the biological and medical research undergone would benefit from Microfluidic solutions. One of the engineering challenges brought about by this technologic evolution involves the dispensing of fluids at these scales. The study presented in this paper concerns the development of a novel dispenser of biofluids, which would find its first application in the measurement of multi-gene expression levels as part of cancer diagnosis. The studied geometry is term
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Asadizadeh, M., C. Clements, A. Hedayat, et al. "Mode I Fracture Behavior of Metakaolin-Based Geopolymers Made of Mine Tailings." In 58th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2024. http://dx.doi.org/10.56952/arma-2024-0571.

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ABSTRACT: Converting mine tailings rich in aluminum oxide and silicon dioxide into a geopolymer using an alkali activator offers an eco-friendly solution for mitigating the environmental impact of mine tailings and reducing associated disposal costs. In the realm of construction materials, thorough investigations into the mechanical properties of geopolymers are essential to gain a better understanding of their performance when subjected to varying loading conditions. This includes a comprehensive understanding of their fracture behavior when subjected to mode I loading, a critical aspect for
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