Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Pengda Wu"'
Publikováno v:
Atmosphere, Vol 15, Iss 3, p 307 (2024)
PM2.5 particles with an aerodynamic diameter of less than 2.5 μm are receiving increasing attention in China. Understanding how complex factors affect PM2.5 particles is crucial for the prevention of air pollution. This study investigated the influe
Externí odkaz:
https://doaj.org/article/72923f91ac1a4fd9b3ddc076fb6fbc32
Publikováno v:
IEEE Access, Vol 8, Pp 202522-202539 (2020)
In the field of cartography and geographic information systems, eliminating self-intersection problems is a key step in improving the reliability and robustness of spatial data representations, especially for the multipart polygon with one outer ring
Externí odkaz:
https://doaj.org/article/cbc8aeb565db4c5d87f78472e49ad124
Publikováno v:
ISPRS International Journal of Geo-Information, Vol 11, Iss 12, p 599 (2022)
Road networks are the skeletal elements of topographic maps at different scales, and road selection is a prerequisite for implementing continuous multiscale spatial representations of road networks. The mesh-based approach is a common, advanced and p
Externí odkaz:
https://doaj.org/article/e7616004f5bd4d24a33d0d9d9480a582
Publikováno v:
Remote Sensing, Vol 14, Iss 18, p 4432 (2022)
Aerosol optical depth (AOD) observations have been widely used to generate wide-coverage PM2.5 retrievals due to the adverse effects of long-term exposure to PM2.5 and the sparsity and unevenness of monitoring sites. However, due to non-random missin
Externí odkaz:
https://doaj.org/article/16bb2d6de73341cd84b4e5b63829c018
Publikováno v:
PLoS ONE, Vol 15, Iss 11, p e0239828 (2020)
The road network is the skeletal element of topographic maps at different scales. In general, urban roads are connected by road segments, thus forming a series of road meshes. Mesh elimination is a key step in evaluating the importance of roads durin
Externí odkaz:
https://doaj.org/article/f3de2edd52a24355b53b56126766251e
Publikováno v:
Remote Sensing, Vol 13, Iss 17, p 3512 (2021)
Common methods of filling open holes first reaggregate them into closed holes and then use a closed hole filling method to repair them. These methods have problems such as long calculation times, high memory consumption, and difficulties in filling l
Externí odkaz:
https://doaj.org/article/bdfbe26e23964434a6354d5c1f13b6ad
Publikováno v:
Sensors, Vol 21, Iss 7, p 2416 (2021)
Feature matching plays a crucial role in the process of 3D reconstruction based on the structure from motion (SfM) technique. For a large collection of oblique images, feature matching is one of the most time-consuming steps, and the matching result
Externí odkaz:
https://doaj.org/article/9bf4503f8edc446ea1c959f725fad1aa
Publikováno v:
ISPRS International Journal of Geo-Information, Vol 9, Iss 5, p 316 (2020)
As the coding of a dendritic river system can be used to represent the stream order and spatial-structure of a river network, it is always used in river selection, which is a key step in topographic map generalization. There are two categories of con
Externí odkaz:
https://doaj.org/article/3d628538634e4e4abe4c8d442299ad8d
Publikováno v:
Applied Sciences, Vol 10, Iss 8, p 2835 (2020)
As air pollution becomes progressively more serious, accurate identification of urban air pollution characteristics and associated pollutant transport mechanisms helps to effectively control and alleviate air pollution. This paper investigates the po
Externí odkaz:
https://doaj.org/article/13f32ceaf49f48d5b3ab3843ac1df9c5
Publikováno v:
ISPRS International Journal of Geo-Information, Vol 8, Iss 7, p 303 (2019)
Extraction of the skeleton line of complex polygons is difficult, and a hot topic in map generalization study. Due to the irregularity and complexity of junctions, it is difficult for traditional methods to maintain main structure and extension chara
Externí odkaz:
https://doaj.org/article/fc88e5044b5646738107f4c5e810b368