Research on 3D Digital Map System and Key Technology

Zhao, Zhongyuan

doi:10.1016/j.proenv.2012.01.311

Cited by 4 publications

(3 citation statements)

References 1 publication

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“…The sensor modules included a high-precision inertial navigation module, integrated LiDAR scanner module, three-axis gimbal, and mapping camera [25]. In the process of data acquisition, the LiDAR scanner obtains the point cloud data of ground surface objects [26], the mapping camera obtains the texture information of ground surface objects [27], the high-precision inertial navigation and GNSS module is responsible for recording the position information of the UAV when acquiring image and point cloud information [28], and the three-axis gimbal is used to adjust the angle of the mapping camera and other modules and prevent jitter [29].…”

Section: Data Acquisitionmentioning

confidence: 99%

A Three-Dimensional Triangle Mesh Integration Method for Oblique Photography Model Data

Che,

Su,

et al. 2023

Buildings

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Oblique photography 3D models are increasingly used in 3D modeling and visualization, urban planning and design, smart cities, smart mines, and other fields. To ensure that 3D models can be replaced and updated, it is necessary to deal with the model holes and incomplete areas caused by the incorrect matching of feature points in the modeling process. Moreover, in 3D models of the planning and management of certain mining areas or urban areas to be developed, regions can also be delineated for replacements and updates. Due to the unsatisfactory display effect of the manually modeled models used to replace and update, the authenticity of the model texture and the detail characteristics of the model triangle meshes cannot be guaranteed during integration. Therefore, this paper proposes a 3D model triangle mesh integration method for oblique photography data which integrates the real and complete 3D models used for replacement with the incomplete part or the part of the original model that needs to be replaced. The experimental results show that this method can integrate the original terrain model and the replacement model efficiently and quickly, the integrated model has no gap, and the display effect is good, effectively achieving model repair or model update and replacement.

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Section: Data Acquisitionmentioning

confidence: 99%

A Three-Dimensional Triangle Mesh Integration Method for Oblique Photography Model Data

Che,

Su,

et al. 2023

Buildings

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“…3D digital maps are becoming increasingly on-demand for applications involving smart cities, high-tech living, and autonomous navigation. These are the next step of digital cities, and an important tool for storing spatial information [25]. 3D maps have been proved to be more beneficial to identify certain intricate locations for pedestrian navigation when compared to 2D maps.…”

Section: Using 3d Maps For Navigationmentioning

confidence: 99%

Safe Walking Route Recommender Based on Fall Risk Calculation Using a Digital Human Model on a 3D Map

et al. 2022

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The recent increase in sedentary lifestyles has highlighted the importance of physical activity in our daily lives. Although fall accidents are a common cause of injuries among the elderly, walking is one of the simplest physical activities available. Therefore, walking route selection and identification of walking behavior in different scenarios remains a widely researched area. This paper is about developing a walking-route recommender system that proposes a safe route to the user and reduces the probability of fall accidents. We determine route candidates after the start and endpoints are fed to the system. Then the tripping risk involved in each route candidate is identified by performing several walking simulations of a digital human model on a three-dimensional laser-scanned point cloud. Finally, a safe route is determined after considering the user's age and the tripping risk. It was confirmed that tripping risk could be competently estimated according to the considered age group.

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“…Maps for blinds users are usually tactile and can help blind people find local information [4]. But unfortunately, tactile maps have limitations in presenting information because tactile maps are still in the form of embossed paper, and there is no map specifically designed for blind people with full vision limitations.…”

Section: Introductionmentioning

confidence: 99%

Interactive Design of 3D -Tactile Map for Visual Impairment people

Arif

Ramdani

Budi

2021

JITeCS

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on maps. In general, the map can only be used by users who are can see visually and blind people have difficulty reading the map because there is no map for the visual impairment in 3D. This map has the advantage of being printable so that it is easy to understand and use for blind users. Amid the development of the map, the authors developed a 3D interactive map design that can accommodate the needs of blind users. This development is generated from DSM data through aerial surveys using drones altered to produce a smoother surface so that it can be reconstructed into a 3D design and analysis of the level of texture density and the level of conformity to the real or original shape and reconstruction using aims to improve and model. Shape to fit the 3-dimensional printing process. The voice module is installed using the RFID Tag identification that is embedded in the 3D map and the RFID Reader in the user's hand, with voice data processing. This innovation that has been developed has the advantage of having a 3-dimensional shape that can be felt, texture, shape, and height equipped with braille-shaped markings that are specially made using Riglet for easy reading and sound as a support to improve the blind's people spatial understanding and spatial literacy.

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Research on 3D Digital Map System and Key Technology

Cited by 4 publications

References 1 publication

A Three-Dimensional Triangle Mesh Integration Method for Oblique Photography Model Data

A Three-Dimensional Triangle Mesh Integration Method for Oblique Photography Model Data

Safe Walking Route Recommender Based on Fall Risk Calculation Using a Digital Human Model on a 3D Map

Interactive Design of 3D -Tactile Map for Visual Impairment people

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