Augmented Reality and 3D modelling

Done by Stafford JoematSupervised by Mr James Connan and Mr Mehrdad Ghaziasgar

PROJECT OVERVIEW Marker-based Augmented Reality uses a camera and a• visual marker, to determine the center of orientation and range of its coordinate system. The system is effectively a driver that allows users to• superimpose a 3D object on a predefined marker, across multiple frames using fixed input video source.

Requirements Analysis

Object Oriented Analysis

Implementation

Testing Issues

User Manual

ITRODUCTION

REQUIREMENTS ANALYSISEquipment and Software needed

High performance computer

2 mega pixel webcam

AR marker with many good features

Windows XP or better

OpenCV library

OpenGL Glut library

OBJECT ORIENTATED ANALYSIS

IMPLEMENTATIONExtract frames

Grayscale

Feature detection

Feature comparison

Stabilized using a running average with selectivity.

IMPLEMENTATIONPerspective comparison

Draw 3D object and perform Perspective transformation

Superimpose 3D object on extracted frames

Display frames

TESTING THE SYSTEMTest different depth

Test system with different markers

Test system with different objects

TESTING THE SYSTEMDifferent depth test using Open

GL

Background image

3D object used

Virtual Camera

TESTING THE SYSTEMTest system with different

markers

Right MarkerLeft Marker

TESTING THE SYSTEMTest system with different objects

USER MANUAL

Connect webcam

Get printed marker ready

Run executable

Put marker in front of webcam

http://internet.suite101.com/article.cfm/using_printable_augmented_reality_marker_tags

http://technotecture.com/augmentedreality

http://opencv.willowgarage.com/wiki/

http://www.cs.cmu.edu/~cil/vision.html

http://www.adobe.com/devnet/flash/articles/augmented_reality.htmlwww.hotcards.com

REFERENCES