Research on construction of three-dimensional visual model of roadbed slope and its lightweight display

Ling Tan; He Huang; Zhongshuai Liu; Feng Xu; Ting Hu

doi:10.1117/12.2613918

10 November 2021 Research on construction of three-dimensional visual model of roadbed slope and its lightweight display

Ling Tan, He Huang, Zhongshuai Liu, Feng Xu, Ting Hu

Author Affiliations +

Proceedings Volume 12050, International Conference on Smart Transportation and City Engineering 2021; 120500Q (2021) https://doi.org/10.1117/12.2613918
Event: 2021 International Conference on Smart Transportation and City Engineering, 2021, Chongqing, China

Abstract

Through the comparative analysis of the advantages and disadvantages of various unmanned aerial vehicles in terms of flight method, Altizure APP was used for data collection during automated flights based on the slope types and features. The parameters of the software were studied and analyzed, and the best range of the parameter values during aerial filming of the slope was proposed. By comparing flight performance, the path planning scheme was optimized. The research on the construction of a three-dimensional visual model of roadbed slope was carried out. Given the pros and cons of the existing mainstream software, PhotoScan and Altizure were combined for modeling. The model construction process was developed, and the modeling effect under the influence of each parameter was analyzed through experiments, and the optimal parameter control was determined through continuous debugging. In the end, the multi-format three-dimensional model was transformed into a lightweight intermediate format data method. By doing so, WebGL-based display can be realized directly in the browser, which greatly reduces the model size and improves the loading and display speed of the model on the web page.

Citation Download Citation

Ling Tan, He Huang, Zhongshuai Liu, Feng Xu, and Ting Hu "Research on construction of three-dimensional visual model of roadbed slope and its lightweight display", Proc. SPIE 12050, International Conference on Smart Transportation and City Engineering 2021, 120500Q (10 November 2021); https://doi.org/10.1117/12.2613918

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KEYWORDS

3D modeling

Data modeling

Process modeling

Unmanned aerial vehicles

Visual process modeling

Cameras

Visualization

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