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21.10.2014

Algorithm lets disaster response robots discern between humans and rubble

With their ability to navigate through tight spaces and unstable environments without putting people at risk, disaster response is one of the most promising applications for robots. Researchers from Mexico's University of Guadalajara (UDG) have developed an algorithm that could come in handy in such situations by allowing robots to differentiate between people and debris.

The team used a robot with a form factor similar to iRobot's 110 FirstLook robot, but without that robot's self-righting capabilities. With motion sensors, cameras, a laser and infrared system, the robot is able to plot paths through an environment or create a 2D map. But it is the inclusion of a flashlight and stereoscopic HD camera that allows it to obtain images of its environment and recognize if there are any people within it.

It does this by using the HD cameras to scan the surrounding area, before the images are cleaned up and patterns of interest are isolated from their surrounds, such as rubble. A descriptor system obtains the 3D points to segment, applying numerical values to the captured images that represent the shape, color and density of the shapes.

The segments are then merged to create a new image that passes through a filter that determines whether it is a human silhouette or not. The whole system can be integrated into the robot, or the algorithm run on a separate laptop and the robot controlled wirelessly.

"Pattern recognition allows the descriptors to automatically distinguish objects containing information about the features that represent a human figure," says Arana Daniel, researcher at the University Center of Exact and Engineering Sciences (CUCEI) at the UDG. "This involves developing algorithms to solve problems of the descriptor and assign features to an object."

The silhouettes will also be used to train a neural network to recognize patterns. This network, called CSVM, was developed by Arana Daniel and can be used to recognize not only human silhouettes, but also fingerprints, handwriting, faces, voice frequencies and DNA sequences.

By mimicking the human learning process, the team plans to continue development on the robot with the goal of training it to automatically classify human shapes based on previous experience.

Source: University of Guadalajara via Alpha Galileo

Source: http://www.gizmag.com/robot-algorithm-pattern-detect-humans/34344/




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2015-2020

The emergence and widespread use of affordable android "avatars" controlled by a "brain-computer" interface. Coupled with related technologies “avatars’ will give people a number of new features: ability to work in dangerous environments, perform rescue operations, travel in extreme situations etc.
Avatar components will be used in medicine for the rehabilitation of fully or partially disabled patients giving them prosthetic limbs or recover lost senses.

2020-2025

Creation of an autonomous life-support system for the human brain linked to a robot, ‘avatar’, will save people whose body is completely worn out or irreversibly damaged. Any patient with an intact brain will be able to return to a fully functioning  bodily life. Such technologies will  greatly enlarge  the possibility of hybrid bio-electronic devices, thus creating a new IT revolution and will make  all  kinds of superimpositions of electronic and biological systems possible.

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