WebGL Visualisation of 3D Environmental Models Based on Finnish Open Geospatial Data Sets

Krooks, Anssi; Kähkönen, Jaakko; Lehto, Lassi; Latvala, Pekka; Karjalainen, Mika; Honkavaara, Eija

doi:10.5194/isprsarchives-xl-3-163-2014

Cited by 5 publications

(3 citation statements)

References 12 publications

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“…The coordination of multidisciplinary sectors is under great attention, since the management of such detailed and flexible models in web-GIS systems is nowadays increasing in the field of CH (Krooks, et al, 2014;Pal Singh et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

SfM for Orthophoto to Generation: A Winning Approach for Cultural Heritage Knowledge

Chiabrando

Donadio

Rinaudo

2015

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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Commission VI, WG VI/4KEY WORDS: Cultural Heritage, close range photogrammetry, RPAS, MicMac, Photoscan, multi-image matching. ABSTRACT:3D detailed models derived from digital survey techniques have increasingly developed and focused in many field of application. The high detailed content and accuracy of such models make them so attractive and usable for large sets of purposes in Cultural Heritage. The present paper focuses on one of the main techniques used nowadays for Cultural Heritage survey and documentation: the image matching approach or Structure from Motion (SfM) technique. According to the low cost nature and the rich content of derivable information, these techniques are extremely strategic in poor available resources sectors such as Cultural Heritage documentation. After an overview of the employed algorithms and used approaches of SfM computer vision based techniques, the paper is focused in a critical analysis of the strategy used by two common employed software: the commercial suite Agisoft Photoscan and the open source tool MicMac realized by IGN France. The experimental section is focused on the description of applied tests (from RPAS data to terrestrial acquisitions), purposed to compare different solutions in various featured study cases. Finally, the accuracy assessment of the achieved products is compared and analyzed according to the strategy employed by the studied software.

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Section: Introductionmentioning

confidence: 99%

SfM for Orthophoto to Generation: A Winning Approach for Cultural Heritage Knowledge

Chiabrando

Donadio

Rinaudo

2015

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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“…Web-based 3D technologies have been applied for visualization and application development in various cases where the data originates from various 3D measurement methods (e.g., [73]). Related to web applications, 3D measurement methods have also been utilized for producing 3D data for environmental models [74], 3D city models [75,76], whole body laser scans [77] or indoor models [34]. The evaluation of the geometric quality of various 3D measurement methods is a mainstay in the research literature (e.g., [78]).…”

Section: Introductionmentioning

confidence: 99%

Automated Multi-Sensor 3D Reconstruction for the Web

Julin

Jaalama

Virtanen

et al. 2019

IJGI

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The Internet has become a major dissemination and sharing platform for 3D content. The utilization of 3D measurement methods can drastically increase the production efficiency of 3D content in an increasing number of use cases where 3D documentation of real-life objects or environments is required. We demonstrated a developed, highly automated and integrated content creation process of providing reality-based photorealistic 3D models for the web. Close-range photogrammetry, terrestrial laser scanning (TLS) and their combination are compared using available state-of-the-art tools in a real-life project setting with real-life limitations. Integrating photogrammetry and TLS is a good compromise for both geometric and texture quality. Compared to approaches using only photogrammetry or TLS, it is slower and more resource-heavy but combines complementary advantages of each method, such as direct scale determination from TLS or superior image quality typically used in photogrammetry. The integration is not only beneficial, but clearly productionally possible using available state-of-the-art tools that have become increasingly available also for non-expert users. Despite the high degree of automation, some manual editing steps are still required in practice to achieve satisfactory results in terms of adequate visual quality. This is mainly due to the current limitations of WebGL technology.

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“…With the emergence of WebGL, open source javascript libraries and frameworks, compatible web browsers have enabled more complicated visualizations of 3D geospatial data visualization, increased performance and it has become widespread on web applications. (Christen et al, 2012;Gesquiere andManin, 2012, Resch et al, 2014;Rumor et al, 2014;Krooks et al, 2014;Kramer and Gutbell, 2015).…”

Section: Introductionmentioning

confidence: 99%

Development of 3d Web Gis Application With Open Source Library

Mete¹,

Güler²,

Yomralıoğlu³

2018

Scitech

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Today, thanks to the internet connection, the borders are disappearing and accessing information is more comfortable. Besides desktop applications, number of web-based applications which instant changes can be seen by all users are increasing day by day. The diversity of web-based applications that are currently used in presenting spatial information to users is also progressing. Using open source libraries, developers can develop web applications for their own purposes. Three dimensional (3D) visualization on the web is a commonly used approach in geographic information systems (GIS) applications. In this article, a 3D web application is developed using Cesium open source javascript library. Vector data layers containing attribute data on global, country and city scales are visualized on the web application. Moreover, raster data layers which produced in other projects like GIS-based land valuation application is also visualized in three dimension. It is pointed out that the output products obtained from different studies can be accessed and visualized through the web browser without installing an additional program or add-ons on the users' computers.

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WebGL Visualisation of 3D Environmental Models Based on Finnish Open Geospatial Data Sets

Cited by 5 publications

References 12 publications

SfM for Orthophoto to Generation: A Winning Approach for Cultural Heritage Knowledge

SfM for Orthophoto to Generation: A Winning Approach for Cultural Heritage Knowledge

Automated Multi-Sensor 3D Reconstruction for the Web

Development of 3d Web Gis Application With Open Source Library

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