Visualization of Sensor Data Multimedia Information Systems 2 VU - - PowerPoint PPT Presentation

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Visualization of Sensor Data Multimedia Information Systems 2 VU - - PowerPoint PPT Presentation

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Visualization of Sensor Data Multimedia Information Systems 2 VU (707.025) (Visual Analytics) SS 2016 Cecilia di Sciascio Know-Center April 19 th 2016 April 19 th , 2016 MMIS2 VU Sensor Data Visusalization Vedran Sabol Visualisation

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SLIDE 1

MMIS2 VU – Sensor Data Visusalization April 19th, 2016 Vedran Sabol

Visualization of Sensor Data

Multimedia Information Systems 2 VU (707.025)

(“Visual Analytics”)

SS 2016

Cecilia di Sciascio Know-Center April 19th 2016

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MMIS2 VU - Sensor Data Visusalization April 19th, 2016 Cecilia di Sciascio

Visualisation of Sensor Data

  • Massive production of sensor data
  • Mobile devices (quantify yourself)
  • Industrial sensors (Industry 4.0): monitoring, prediction etc.
  • Medicine: patient monitoring, brain-computer interfaces
  • Transportation
  • Climate, …
  • Problems to address:
  • Scalability: visualize massive amounts of data (high-frequency, long time

range)

  • Handling many sensor channels at once
  • Interactive exploration techniques for sensor data: annotation, brushing

and filtering, searching etc.

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MMIS2 VU - Sensor Data Visusalization April 19th, 2016 Cecilia di Sciascio

Scalability

  • Methods to visualise massive signals: down-sampling techniques,

LOD rendering, data transfer protocols etc.

  • Downsampling e.g. Decimation

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MMIS2 VU - Sensor Data Visusalization April 19th, 2016 Cecilia di Sciascio

Scalability

  • Simultaneous visualisation of many sensor channels: dense

views

Information Density

Downsampling can be problematic!

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MMIS2 VU - Sensor Data Visusalization April 19th, 2016 Cecilia di Sciascio

Visualisation of Sensor Data – Tasks

  • 1. Interactive exploration techniques for sensor data
  • Annotation tools: users describe phenomena

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MMIS2 VU - Sensor Data Visusalization April 19th, 2016 Cecilia di Sciascio

Visualisation of Sensor Data – Tasks

  • 2. Show pattern overview: downsample, cluster (e.g. correlation) and

show how “good” each cluster is with overlapping strokes.

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MMIS2 VU - Sensor Data Visusalization April 19th, 2016 Cecilia di Sciascio

Visualisation of Sensor Data – Tasks

  • 3. Dense graphs: downsample signal and make color-coded groups by

certain property (set threshold, +/-)

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MMIS2 VU - Sensor Data Visusalization April 19th, 2016 Cecilia di Sciascio

Visualisation of Sensor Data – Tasks

  • 4. Brushing: multiple value-range filters, angle- (slope-) filter

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MMIS2 VU - Sensor Data Visusalization April 19th, 2016 Cecilia di Sciascio

Visualisation of Sensor Data – Tasks

  • 5. Visualize any other kind of temporal series

http://survey.timeviz.net/

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MMIS2 VU - Sensor Data Visusalization April 19th, 2016 Cecilia di Sciascio

Visualisation of Sensor Data – Suggested Data Sets

EEG Data:

  • http://sccn.ucsd.edu/~arno/fam2data/publicly_available_EEG_data.html
  • http://sccn.ucsd.edu/~arno/fam2data/publicly_available_EEG_data.html
  • http://bnci-horizon-2020.eu/database/data-sets
  • Ask for more data sets via email: cdisciascio@know-center.at

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MMIS2 VU - Sensor Data Visusalization April 19th, 2016 Cecilia di Sciascio

Thank you

Questions?

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