GPU-Based Multi-resolution Volume Rendering for Large Seismic Data

Xie, Kai; Yu, WenMao; Yu, HuoQuan; Wu, Peng; Li, Tao; Peng, Minfang

doi:10.1109/isie.2011.28

Cited by 2 publications

(4 citation statements)

References 5 publications

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“…Fine models of some elements (e.g., buildings and water conservancy facilities) were commonly overlaid on the basis of a 3D terrain model (Chen et al., 2004; Huang et al., 2006), so that the detailed features of watersheds can be expressed. To balance the fidelity and loading speed of 3D models, multiple models with different details are usually built for each entity and invoked on demand (Carmona & Froehlich, 2011; Piccand et al., 2008; Xie et al., 2011). Another common solution is to classify spatial entities according to importance; the greater the importance of an entity, the higher the accuracy of its corresponding 3D models (Cheng et al., 2018; Zhu, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…Limited by scale, it is difficult for 3D terrain models generated based on DEMs to express the local detailed features of watersheds. To enhance the visual and interactive quality of digital watershed platforms, the technology to establish a watershed VGE has drawn broad attention (Carmona & Froehlich, 2011; Chen, Lu, & Wu, 2004; Cheng, Li, Nie, & Li, 2018; Fan & Li, 2017; Gao, Yuan, & Gan, 2018; Huang, Mao, Xu, Li, & Lei, 2006; Lin, Chen, & Lü, 2012; Lin et al., 2013; Lü, Chen, Yuan, & Zhou, 2017; Piccand, Noumeir, & Paquette, 2008; Xie et al., 2011; Zhu, 2014). Fine models of some elements (e.g., buildings and water conservancy facilities) were commonly overlaid on the basis of a 3D terrain model (Chen et al., 2004; Huang et al., 2006), so that the detailed features of watersheds can be expressed.…”

Section: Introductionmentioning

confidence: 99%

“…(2008), Carmona and Froehlich (2011), Xie et al. (2011), Zhu (2014), and Cheng et al. (2018) can obtain good effects of 3D visualization under limited hardware conditions, but the modeling process, especially the procedure of precision model construction, is mainly completed manually and commonly inefficiently.…”

Section: Introductionmentioning

confidence: 99%

“…Another common solution is to classify spatial entities according to importance; the greater the importance of an entity, the higher the accuracy of its corresponding 3D models (Cheng et al, 2018;Zhu, 2014). The methods mentioned by Piccand et al (2008), Carmona and Froehlich (2011), Xie et al (2011), Zhu (2014), andCheng et al (2018) can obtain good effects of 3D visualization under limited hardware conditions, but the modeling process, especially the procedure of precision model construction, is mainly completed manually and commonly inefficiently. Furthermore, traditional 3D visualization schemes focus mainly on elements of shape rules and are not suitable for modeling most categories of watershed factors (e.g., vegetation, farmlands, and rivers).…”

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confidence: 99%

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Design and development of a web‐based interactive twin platform for watershed management

Qiu

Duan

Xie

et al. 2022

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There are limitations to traditional digital watershed platforms in terms of realistic visualization of geospatial elements and powerful decision support for watershed management.To advance the status quo, a web-based digital twin is designed and implemented in this article that can: (1) realize virtual simulation of geographic elements on the browser side; (2) present the current situation and excessive information of the watershed water environment; and (3) provide decision support for integrated watershed management.Multiple 3D modeling methods are adopted cooperatively for total-factor virtual simulation of geographic elements, and a browser-side data loading scheme is designed for dynamic loading and cull rendering of 3D models. Additionally, schemes for spatiotemporal modeling of multisource data, analysis of multitype data, and scientific computation of mathematical models are proposed to support precise watershed management, making the platform practical. The implemented digital twin is applied in the Chaohu Lake Watershed, demonstrating that it can realize both stunning visual effects and practical decision-support functions. | INTRODUC TI ONWith the continuous growth in population and the rapid development of industry and agriculture, rivers are experiencing various degrees of pollution. As a result, the safety of drinking water and social and economic development are facing serious problems (

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Design and development of a web‐based interactive twin platform for watershed management

Qiu

Duan

Xie

et al. 2022

Transactions in GIS

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A Rapid Water Region Reconstruction Scheme in 3D Watershed Scene Generated by UAV Oblique Photography

et al. 2023

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Oblique photography technology based on UAV (unmanned aerial vehicle) provides an effective means for the rapid, real-scene 3D reconstruction of geographical objects on a watershed scale. However, existing research cannot achieve the automatic and high-precision reconstruction of water regions due to the sensitivity of water surface patterns to wind and waves, reflections of objects on the shore, etc. To solve this problem, a novel rapid reconstruction scheme for water regions in 3D models of oblique photography is proposed in this paper. It extracts the boundaries of water regions firstly using a designed eight-neighborhood traversal algorithm, and then reconstructs the triangulated irregular network (TIN) of water regions. Afterwards, the corresponding texture images of water regions are intelligently selected and processed using a designed method based on coordinate matching, image stitching and clipping. Finally, the processed texture images are mapped to the obtained TIN, and the real information about water regions can be reconstructed, visualized and integrated into the original real-scene 3D environment. Experimental results have shown that the proposed scheme can rapidly and accurately reconstruct water regions in 3D models of oblique photography. The outcome of this work can refine the current technical system of 3D modeling by UAV oblique photography and expand its application in the construction of twin watershed, twin city, etc.

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GPU-Based Multi-resolution Volume Rendering for Large Seismic Data

Cited by 2 publications

References 5 publications

Design and development of a web‐based interactive twin platform for watershed management

Design and development of a web‐based interactive twin platform for watershed management

A Rapid Water Region Reconstruction Scheme in 3D Watershed Scene Generated by UAV Oblique Photography

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