crafting urban camouflage: DIS2012

ABSTRACT     ABOUT     CALL FOR PARTICIPANTS     OUTLINE     THE WORKSHOP PARTICIPANTS     SCHEDULE     SETTING THE SCENE     DESIGNS     THEMES

To set the scene for the making session of the workshop we gave two short presentations to participants. The first was on existing strategies of urban camouflage. This was followed by an introduction to computer tracking systems.

Introduction to computer tracking systems: The challenges of computer vision pedestrian tracking is an active field of research with several decades of progress. The seamingley easy task for humans of identifying and tracking a moving object using vision is complicated for computers in real-world environments by changing lighting, object shape, texture, direction, line of sight, etc.

Early successful surveillance programs relied on calculations of the changes in pixel colour from one video frame to the next to identify 'blobs' of movement that could be a pedestrian. Adapting to changing environmental conditions, keeping track of individuals over time and improving blob selection all helped to make such tracking suitable for outdoor use. However, robustness of tracking and the related challenges of identification of a particular person through unique 'biometric' characteristics, provide ongoing challenges for the designers of these systems.

An understanding of the improvements that have been made to pedestrian tracking provides potential actions that can be taken to control personal visibility under the gaze of modern computer vision. We looked at a range of methods implemented to improve robustness.

Download the slides from this presentation here (PDF)

Introduction to urban camouflage: This presentation illustrated how people and objects can be disguised and camouflaged so as to be visually deceptive. The images from the presentation are below.

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Blur building by Diller & Scofidio

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Zebra by Desiree Palmen

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www.urbancamouflage.de

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Urban Camouflage by Aya Tsukioka

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Madrid Street Gallery

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Hair clip by Humans-Since-1982

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Crocheted facial features by Howie Woo

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Too Beautiful to be True by Meike Harde

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Britannica Colour Chart for dazzle camouflage

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HMT Olympic painted in dazzle camouflage

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Electro Draught Excluder by Dunne & Raby

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Growth of Surveillance in Public Space by Applied Autonomy

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CV Dazzle by Adam Harvey

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WOW Laguna workshop by Aram Bartholl

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