Zobrazeno 1 - 10
of 1 796
pro vyhledávání: '"point cloud data"'
Publikováno v:
工程科学学报, Vol 46, Iss 12, Pp 2279-2288 (2024)
To address the problems of strong noise interference, long detection times, uneven fuselage surfaces, lack of visual information in two-dimensional images, and difficulty in automatic detection, an automatic detection algorithm for aircraft skin pit
Externí odkaz:
https://doaj.org/article/d1edd838292749a7868ed8ff5cf60995
Autor:
Yu Ren, Hongcan Guan, Haitao Yang, Yanjun Su, Shengli Tao, Kai Cheng, Wenkai Li, Zekun Yang, Guoran Huang, Cheng Li, Guangcai Xu, Zhi Lu, Qinghua Guo
Publikováno v:
Methods in Ecology and Evolution, Vol 15, Iss 10, Pp 1889-1905 (2024)
Abstract Giant trees are pivotal in forest ecosystems, yet our current understanding of their significance is constrained primarily by the limited knowledge of their precise locations and structural characteristics. Amidst escalating human‐induced
Externí odkaz:
https://doaj.org/article/ab24abfbdfea4287a896e221381be565
Publikováno v:
Plant Methods, Vol 20, Iss 1, Pp 1-24 (2024)
Abstract Aiming at the problems of low efficiency and high cost in determining the phenotypic parameters of Cymbidium seedlings by artificial approaches, this study proposed a fully automated measurement scheme for some phenotypic parameters based on
Externí odkaz:
https://doaj.org/article/dd9918a4a8fc4df992f1a599f5337ea6
Publikováno v:
Liang you shipin ke-ji, Vol 32, Iss 5, Pp 186-192 (2024)
Grain surface movement monitoring is an important part of the daily inventory inspection of national grain reserves, and is a new requirement for grain storage supervision. In order to solve the technical problems of the traditional grain surface mov
Externí odkaz:
https://doaj.org/article/fa16ed9d6cc646dcb1333bb44e714dd6
Autor:
Gefei Kong, Hongchao Fan
Publikováno v:
Geo-spatial Information Science, Vol 27, Iss 4, Pp 1107-1117 (2024)
Building outline extraction from segmented point clouds is a critical step of building footprint generation. Existing methods for this task are often based on the convex hull and α-shape algorithm. There are also some methods using grids and Delauna
Externí odkaz:
https://doaj.org/article/82006e67885f42b2840970447bcd5c13
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-17 (2024)
Abstract High-precision 3D point cloud data have various analyses and application use cases. This study aimed to achieve a more precise noise reduction of the raw 3D point cloud data of asphalt pavements obtained using 3D laser scanning. Hence, a noi
Externí odkaz:
https://doaj.org/article/50fc5133bf004cfbb86fd871df3ebbc4
Autor:
Geng Wang, Nuermaimaitijiang Aierken, Guoqi Chai, Xuanhao Yan, Long Chen, Xiang Jia, Jiahao Wang, Wenyuan Huang, Xiaoli Zhang
Publikováno v:
International Journal of Applied Earth Observations and Geoinformation, Vol 134, Iss , Pp 104177- (2024)
Pine Wilt Disease (PWD) is a forest infectious disease that inflicts substantial economic losses to China’s forestry. Its rapid spread and the significant challenges associated with its control make early detection of infected trees crucial for dis
Externí odkaz:
https://doaj.org/article/c678fc6fc67e465bb4a1fc4efd186651
Publikováno v:
Heliyon, Vol 10, Iss 21, Pp e38833- (2024)
This study aims to enhance the accuracy of three-dimensional (3D) modeling in the planning, design, operation management, and risk assessment of 500 kV transmission lines. Addressing the limitations of traditional two-dimensional (2D) or low-precisio
Externí odkaz:
https://doaj.org/article/633b4740889346808da050abda085ead
Publikováno v:
Frontiers in Physics, Vol 12 (2024)
Thermal protection systems (TPSs) are important components of reusable spacecraft, and their assembly quality has a crucial impact on flight safety. Owing to the complex assembly process and variable states of spacecraft thermal protection systems, a
Externí odkaz:
https://doaj.org/article/12c7ad99e8a4408c8c1f0f8a09ab2800
Publikováno v:
Defence Technology, Vol 36, Iss , Pp 95-104 (2024)
Swarm robot systems are an important application of autonomous unmanned surface vehicles on water surfaces. For monitoring natural environments and conducting security activities within a certain range using a surface vehicle, the swarm robot system
Externí odkaz:
https://doaj.org/article/f5c00ed0e60f4ecbadb872f0d4260d5d