EG2013 Tutorial on VIDEO VISUALIZATION EG2013 Tutorial on VIDEO VISUALIZATION

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EG2013 Tutorial on VIDEO VISUALIZATION EG2013 Tutorial on VIDEO VISUALIZATION

8 Summary and Overall Q & A 8. Summary and Overall Q & A

Mi Ch Min Chen

University of Oxford

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Tutorial Schedule

 Tutorial Introduction (10 min)

 A "Hello" Pipeline and Use Case (15+5)A Hello Pipeline and Use Case ( 5 5)

 The Taxonomy of Video Visualization (25+5)

 Visual designs for video visualization (25+5)

 Visual designs for video visualization (25+5) Coffee/Tea Break

Coffee/Tea Break

 Visual analytics of Videos (15+5)

 Empirical Studies and User Evaluation (25+5) A li ti (25+5)

 Applications (25+5)

 Summary and overall Q&A (5+5)

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Why Visualization?

 There is a more

fundamental reason.

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Bounded Visual Search

template

(a) (b) (c) (d)

(e) (f) (g) (h)

(i) (j) (k) (l)

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Unbounded Visual Search

hint

(a) (b) (c) (d)

(e) (f) (g) (h)

(i) (j) (k) (l)

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Why Visualization?

Given

 an image I of n pixels, and a hint image H, where each pixel I i i t d ith l ( )

pI is associated with a value v(p),

 a difference function DIFF(v(p)), and a correlation function CORR(v(p)),

CO (v(p)),

 two positive integers a and b, To find a subset of J  I, such that

 _pJ_pJ DIFF(v(p)) ( (p)) a and _pJ_pJ CORR(v(p)) ( (p)) b.

 This is basically the Knapsack problem,

 which is known to be NP‐complete.

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Why Visualization?

Unbounded Unbounded Visual Search with Machine Intelligence

Decision

NP‐complete O(1)

Abstract Polynomial

Video Visualization

Abstract Visual Represen‐

tations o y o a

Video Processing Techniques

O(N) ?

O(N) or P

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Video Visualization: Future Work

 New Visual Designs

 Fast Rendering TechniquesFast Rendering Techniques

 More Effective Visual Analytics

 Mathematical Theories

 Perceptual and Cognitive Studies

 Real World Applications

2013 2014 2015 2016 2017 2018

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EG2013 Tutorial on VIDEO VISUALIZATION EG2013 Tutorial on VIDEO VISUALIZATION

Questions and Answers Questions and Answers

Rita Borgo Swansea University Rita Borgo, Swansea University Min Chen, University of Oxford

Markus Höferlin University of Stuttgart Markus Höferlin, University of Stuttgart Kuno Kurzhals, University of Stuttgart Phil Legg, Swansea University

Simon Walton, University of Oxford

Daniel Weiskopf, University of Stuttgart