Results 21 to 30 of about 21,230 (297)

Extracting Centerlines From Dual-Line Roads Using Superpixel Segmentation [PDF]

open access: yesIEEE Access, 2019
Extracting centerlines from dual-line roads is very important in urban spatial analysis and infrastructure planning. In recent decades, numerous algorithms for road centerline extraction based on the vector data have been proposed by various scholars ...
Yilang Shen, Tinghua Ai, Min Yang
doaj   +2 more sources

Construction of a High-Precision Underwater 3D Reconstruction System Based on Line Laser [PDF]

open access: yesSensors
This study presents a high-precision underwater 3D reconstruction system based on rotating laser scanning. The system adopts a modeling framework that combines air-based camera calibration with refraction compensation.
Hongyang Xu   +3 more
doaj   +2 more sources

Multi-Scale Adaptive Light Stripe Center Extraction for Line-Structured Light Vision Based Online Wheelset Measurement [PDF]

open access: yesSensors
The extraction of the light stripe center is a pivotal step in line-structured light vision measurement. This paper addresses a key challenge in the online measurement of train wheel treads, where the diverse and complex profile characteristics of the ...
Saisai Liu   +4 more
doaj   +2 more sources

An automatic method for road centerline extraction from post-earthquake aerial images

open access: diamondGeodesy and Geodynamics, 2019
Road vector database plays an important role in post-earthquake relief, rescue and reconstruction. However, due to data privacy policy, it is difficult for general users to obtain high-precision and complete vector data of road network. The OpenStreetMap
Zhumei Liu, Jingfa Zhang, Xue Li
doaj   +2 more sources

Road Extraction from Very High Resolution Images Using Weakly labeled OpenStreetMap Centerline [PDF]

open access: goldISPRS International Journal of Geo-Information, 2019
Road networks play a significant role in modern city management. It is necessary to continually extract current road structure, as it changes rapidly with the development of the city.
Songbing Wu   +5 more
doaj   +2 more sources

Crop row centerline extraction method based on regional feature point clustering

open access: goldSmart Agricultural Technology
To address the issues of low accuracy and high processing time in traditional machine vision methods for crop row detection due to varying crop types, growth backgrounds, and changes in the number of crop rows, this study proposes a crop row centerline ...
Baofeng Ji   +7 more
doaj   +2 more sources

Enhanced Multi-Threshold Otsu Algorithm for Corn Seedling Band Centerline Extraction in Straw Row Grouping

open access: goldAgronomy
Straw row grouping is vital in conservation tillage for precision seeding, and accurate centerline extraction of the seedling bands enhances agricultural spraying efficiency.
Yuanyuan Liu   +11 more
doaj   +2 more sources

Airway Segmentation and Centerline Extraction from Thoracic CT - Comparison of a New Method to State of the Art Commercialized Methods. [PDF]

open access: goldPLoS One, 2015
Reynisson PJ   +9 more
europepmc   +3 more sources

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