Hello,

We noticed you're browsing in private or incognito mode.

To continue reading this article, please exit incognito mode or log in.

Not an Insider? Subscribe now for unlimited access to online articles.

A View from Kristina Grifantini

Modeling Sneaky Robots

Researchers create a stealth-mode behavior

  • May 20, 2009

Imagine a guard robot trying to apprehend an intruder or catch an escaped prisoner. Instead of simply tracking the target, ideally the robot would know how to creep up stealthily, by crouching behind objects and hiding in the shadows. This way, it could surprise and apprehend its target before it can get away.

Creepy as this might sound, a team at Seoul National University in Korea has created an algorithm that models just this sort of stealthy behavior. Professor of engineering Beom Lee and first author Jung-Hee Park designed simulations in which a robot waits in the shadows and moves quickly between obstacles to intercept a target.

The simulations take into account the size of the robot, the size of objects it can hide behind and the speeds of moving target. In the videos below, the robot, blue, tracks the invader, red. The blue line marks the robot’s planned path and its projected interception point. In this movie, the system is in “stealthy mode”, moving only when the intruder won’t see it:

In this movie, the system moves with only the “intercept intruder” program, leaving itself visible to the intruder:

Discover how robotics is driving the future of work at EmTech Next!

Find more information and register
More from Intelligent Machines

Artificial intelligence and robots are transforming how we work and live.

Want more award-winning journalism? Subscribe to Insider Online Only.
  • Insider Online Only {! insider.prices.online !}*

    {! insider.display.menuOptionsLabel !}

    Unlimited online access including articles and video, plus The Download with the top tech stories delivered daily to your inbox.

    See details+

    Unlimited online access including all articles, multimedia, and more

    The Download newsletter with top tech stories delivered daily to your inbox

/3
You've read of three free articles this month. for unlimited online access. You've read of three free articles this month. for unlimited online access. This is your last free article this month. for unlimited online access. You've read all your free articles this month. for unlimited online access. You've read of three free articles this month. for more, or for unlimited online access. for two more free articles, or for unlimited online access.