2017


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3D Modelling & Ubiquitous Positioning and Location-based Services in Mobile Devices

By: Admin | Posted on: 08 Mar 2017

3D Modelling

Course description

This course discusses the three-dimensional (3D) modelling of the built environment into computer based, well-structured abstractions. The module covers large parts of the entire process of deciding what kind of phenomena should be measured, determining the appropriate level of abstraction and deciding on appropriate data structuring. The focus of this course is on 3D representations and structuring.


Course objectives

After the course the student should be able to:

  • understand the importance of well-structured data

  • analyse advantages and disadvantages of different 3D models (design and real-world) and advise on representations, levels of detail and data structures

  • understand the defence between geometric and topological data structures

  • evaluate approaches and tools for conversions between different representations (data formats)


Course outline

Schedule

Topic

Day 1

 

Lecture: 3D representations :

- Voxels, Constructive Solid Geometry (CSG)

- Boundary representation

Practicum: 3D data structure in PostGIS (geometry and topology)

Day 2

 

 

Lecture: 3D models:

- Geometry models

- 3D Topological models

Practicum: 3D data structure in PostGIS (geometry and topology)

Day 3

 

 

Lecture: 3D DBMS

- Geometric data structures

- Topological data structures

3D file formats (Shape, VRML, X3D, pdf, CityGML, IFC).

Practicum: 3D data structure in PostGIS (geometry and topology)

Day 4

 

Lecture: 3D semantics

- CityGML,

- IFC

Practicum: 3D data structure in PostGIS (geometry and topology)

Day 5

 

Lecture: 3D operations on 3D models

- metric (distance, volume, buffer),

- topological (9i model)

Practicum: 3D data structure in PostGIS (geometry and topology)

Day 6

Discussions  and presentations

Total Lectures

18 hours



Ubiquitous Positioning and Location-based Services in Mobile Devices

Course description

This short course will briefly introduce the fundamental positioning theory and methodologies based on the sensors and RF radios built in smartphones. It covers the positioning solutions for indoor and outdoor environments. The course will be concluded with a lecture of  location-based services with live demonstrations.


Course objectives

Upon successful completion of this short course, students should:

  • understand the fundamental theory and methodologies of smartphone positioning indoors/outdoors

  • have the fundamental knowledge of mobile location-based services


Course outline

Lecture 1: Introduction to ubiquitous positioning in smartphone

Lecture 2: Outdoor positioning with GNSS

Lecture 3: Outdoor positioning with RF radio signals

Lecture 4: Indoor Positioning

Lecture 5: Location-based services


Course methods

The course contents are taught through lectures and demonstrations. Students will be required to work out assignments.


Course assessment

The course grade depends on students’ performance in class activities, assignments, and final exam.


Reading

Handout and copies of PowerPoint slides.


Prerequisites

None.

  • Lecturers: Ruizhi Chen Sisi Zlatanova
  • Start time: 29 May 2017 10:00:00
  • End time: 07 Jun 2017 17:00:00
  • Address: 测绘遥感信息工程国家重点实验室