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Augmented Reality and 3D modelling

This project by Stafford Joemat, supervised by Mr. James Connan and Mehrdad Ghaziasgar, explores Marker-based Augmented Reality using visual markers to determine orientation and coordinate systems. It allows users to superimpose 3D objects on predefined markers across multiple video frames. The workflow includes requirements analysis, object-oriented analysis, implementation, and testing, with key components such as feature detection and perspective transformation for effective visualization.

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Augmented Reality and 3D modelling

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  1. Augmented Reality and 3D modelling Done by Stafford Joemat Supervised by Mr James Connan and MehrdadGhaziasgar

  2. 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.

  3. ITRODUCTION • Requirements Analysis • Object Oriented Analysis • Implementation • Testing Issues • Testing Results • User Manual

  4. REQUIREMENTS ANALYSIS

  5. OBJECT ORIENTATED ANALYSIS

  6. PERSPECTIVE COMPARISON • Compares Original markers’ x , y coordinates with Marker • with in video input frame 1b 2a 1a 2b y 4b 4a 3b 3a 1a + 3a < 1b + 3b && 2a + 4a > 2b + 4b x Rotated to the right

  7. PERSPECTIVE TRANSFORMATION • Transform input Image based on Markers x,y,z received by perspective comparison.

  8. IMPLEMENTATION • Extract frames • Grayscale • Feature detection • Feature comparison Stabilized using a running average with selectivity.

  9. IMPLEMENTATION • Perspective comparison • Perspective transformation • Superimpose image on • extracted frames • Display frames

  10. REFERENCES 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.html www.hotcards.com

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