Seminar aus Computergrafik186.175 - WS 2012/2013

Przemyslaw MusialskiInstitute of Computer Graphics and Algorithms (E186)

Vienna University of Technologyhttp://www.cg.tuwien.ac.at/staff/PrzemyslawMusialski.html

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Organization (1)

• Important: Register in TUWEL!– This seminar is managed with the TUWEL platform.

• FORUM: All news will be announced in the News Forum. – Questions can also be posted in the forum.

• Registration is mandatory. – You can register starting

on 02.10.2012 until 29.10.2012 on TUWEL.

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Organization (2)

• Starting today at 2pm the subscription will open in form of waiting lists– subscribe to 3 topics until today, 11pm. – Groups of two: write me an e-mail and subscribe to the

waiting-lists as usual.

• The final topic assignments we be available tomorrow before noon.

• After that the subscription to the remaining topics will stay open until 29th of October 2012.

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Organization (3)

• There will be regular meetings (up to 6) with the advisor– Meetings to be set up personally using TUWEL forum.

• Discussion per TUWEL-Forum is also possible– Ask questions– Explain your progress– Set up dates for appointments.

• Important: always submit any assignments to TUWEL!

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Seminar

• Mission statement:– Get an idea how scientific work is carried out (in CG)

• Practice to review literature and get familiar with a particular scientific topic– Selecting, reading and understanding– Summarizing and explaining (orally and written)– Comparing and discussing

• Practice to review the works of others• Practice to give a talk• Experience critical scientific discussion

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Seminar

Tasks:1. Submit initial literature list 2. 3 Lectures:

– „Wie halte ich einen Vortrag“ (Prof. Purgathofer),– „Forschung und wie sie funktioniert“ (Prof. Gröller), – „How to write a scientific paper“ (Prof. Wimmer)

3. Write a draft of your state-of-the-art report4. Review a draft of a colleague5. Give a presentation6. Active discussion participation7. Revision of final document

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Literature List

• Analyze some recent papers (select with advisor) – study relevant papers for topic understanding

• Use scientific portals and search engines:• Citeseer• Google Scholar• The Collection of Computer Science Bibliographies• Graphics Papers• ACM Digital Library, SIGGRAPH Proceedings• IEEE Computer Society Digital Library• Libra Academic Search

• Links are also online at TUWEL

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Written Report

• State-of-the-Art Report: STAR – 8-12 pages per student

• Preferably in English• Format reports in the style of a scientific paper

– Use LaTeX (ACM template on TUWEL)– A not so short introduction to LaTeX– MiKTeX, free distribution of LaTeX for Microsoft Windows– TexnicCenter is an IDE for developing LaTeX documents on

Microsoft Windows• Students can work in groups of two

– 15-16 pages common report

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Scientific Review

• Review of a paper:– Draft of the report must be submitted– Everyone gets a draft to review

• Typical review form of a conference (Eurographics) • Help author to improve the manuscript

• Read how to review a scientific paper:– Read Greg Turks Notes: http://

www.siggraph.org/s2008/submissions/juried/papers/review_writing.php

• Revision– You will receive 2 reviews (supervisor, student)– Improve final submission according to comments in

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Talk

• Use PowerPoint template for presentations– (download on TUWEL)

• 15 + 10 minutes talk

• Preferable in English

• Active discussion participation is mandatory and will be graded (5%)

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Grading

• The quality of the written report is worth 40% of the grade

• The quality of the talk is worth 30% of the grade

• The quality of the review is worth 20% of the grade

• Active discussion participation is worth 5% of the grade

• Attendance during the meetings is worth 5% of the grade

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Important Dates

• Attend 3 lectures :– 08.11. 17:00, “Forschung und wie sie funktioniert”– 13.11. 17:00, “Wie halte ich einen Vortrag”– 20.11. 15:00, “How to write a scientific paper”

• 29.10.12 Deadline: list of literature • 26.11.12 Deadline: draft of your paper• 04.12.12 Receive paper for review• 10.12.12 Deadline: review • 24.01.13 Presentations• 28.01.13 Deadline: final version

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TOPICS (number of students)

• Please prepare to take some notes...

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– gemeinsam mit Architekturstudenten!– Betreuung: Peter Ferschin, Michael Jenewein– Vorbesprechung: Diensteg 09.10.2012, 10:00 Ugr– Seminarraum IEMAR (Treitlstr. 3, 1.Stock)– Recherche zu gewähltem Thema– Auseinandersetzg., Strukturierg., Beurteilg.– Kurzvortrag und schriftl. Beitrag

Special Topic: VR in der Architektur

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Topic: Image Stitching

• State-of-the-art Image Stitching methods for the generation of:– Large panorama views– Seamless import of source image regions into a destination

region

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Topic: Virtual Texturing

• History and state-of-the-art methods of texturing using one huge texture

“ MegaTexture“ used by id software

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Topic: Shape and Motion from Video

• Shape and Motion from Video (Smartphone Crowd)• Different smartphones at different times register the

same space – Characteristics are low quality, noisy data, missing data in

both space and time, position through accelerometer, GPS.• Review state-of-the-art techniques to achieve

aspects of that specific goal, given its characteristics.

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Topic: Simulation of Out-of-Core Data

• Review papers dealing with out-of-core data simulations, e.g. fluids (preferably with real-time and interactive focus).

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Topic: Robust Surface Reconstruction

• Robustness in Surface Reconstruction:– How to deal with

missing data – How to deal with noise– How to deal with outliers– How to reconstruct sharp

edges from models

• State-of the art methods in robust surface reconstruction from point clouds

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Topic: Wavelets in CG

Give an overview of state-of-the-art uses of wavelets in computer graphics.

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Topic: Video Stabilization

Give an overview of state-of-the-art methods in video stabilization and related improvements of video sources.

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Topic: Out-of-Core Surface Reconstruction

• Estimation of surfaces based on given point data• Huge initial data sets• Too big to fit into memory for processing

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Topic: Complexity Analysis

• Multidimensional data structures are used in many fields in computer graphics

• Data structures are chosen dependent on actual requirements• Operations on data structures can be classified according to time

complexity• TASK: research literature on multi-dimensional data structures

and provide a State-of-the-Art Report.

? O(log n)

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Topic: Point Cloud Navigation

• Visualization of architectural sites.

• Path planning, collision detection, and free navigation features.

• Point clouds, not geometric objects.

• Give overview on state of art

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Snap of Hanghäuser in Ephesostaken from Terapoints

a software for point clouds visualisation.

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Topic: Point Cloud Compression

• Recent laser scanners produce enormous point clouds.

• Compression is one way to handle.

• Give an overview of 3D points compression techniques.

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• Research state of the art techniques for rendering of hair in games and movies.

Topic: Hair Rendering

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• Research automatic algorithms for detection of man-made-objects or other human impact in satellite and aerial images.

Topic: Detection of Man-Made-Objects

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Topic: Procedural Texture Synthesis

• Procedural texture generation is well known as a powerful tool for synthesis of a large range of materials

• It is also known to be not easy to control• Provide a State-of-the-Art Report on that Topic

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Topic: Modeling with Quad-Meshes

• Quad Meshes are meshes which contain only quadrilateral elements (= quads)

• They are very useful in modeling and animation• Provide a State-of-the-Art Report on that Topic

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Topic: Overview of Interior Design Software

• Try out solutions for interior modeling and planning • compare capabilities, • Look for advanced features, • Collect background info and • Judge about the data

structures and algorithms

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Topic: Efficient BSP-Trees

• Provide an overview of state-of-the-art methods for:– manipulation, – compression, – optimization and – navigation

in BSP-Trees.

• This involves identification of topologically connected regions, removal of redundant nodes and balancing

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Topic: Autostereo Displays

• Review state-of-the-art– Software – Hardware

• Discuss– Technical Limitations– Perceptual Problems– User Acceptance– Future Trends

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Topic: Gaze-Contigent Displays

• Gaze-contingent displays attempt to tailor visual information displayed to the actual focus of the observer, which is determined through real-time eye movement sensing.

• Research:

10/8/2012Gaze-contigent 3D collision detection Gaze-contigent multi-resolution

– LOD Techniques• Object space• Image space

– Eye-related effects• Depth-of-field• HDR Tonemapping• 3D Stereo

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Seminar

Questions?Use TUWEL to communicate with your

supervisor.

https://tuwel.tuwien.ac.at/course/view.php?id=4186

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