Kostas Alexis
  • Male
  • Reno, NV
  • United States
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Latest Activity

Kostas Alexis commented on Kostas Alexis's blog post Open-source: Localization Uncertainty-aware Exploration and Mapping Planner
"Some details: * perception system: stereo visual - synchronized with IMU / software synchronization with IMU works just fine (in fact the video in darkness is like that) * processing power (all processing takes place onboard): Intel NUC i7 *…"
Jun 3
Andreas Gazis commented on Kostas Alexis's blog post Open-source: Localization Uncertainty-aware Exploration and Mapping Planner
"Very impressive. I take it this is structure from motion? What hardware does the heavy lifting? How would it perform outdoors at indefinite range?"
Jun 3

MR60
Hugues commented on Kostas Alexis's blog post Open-source: Localization Uncertainty-aware Exploration and Mapping Planner
"this experiment shows very well why nature decoupled vision/perceptive organs from a conscencious brain decisions (to move there or there). It is faster and more efficient."
Jun 3
Gary McCray commented on Kostas Alexis's blog post Open-source: Localization Uncertainty-aware Exploration and Mapping Planner
"Really excellent work guys, Would really like to know more about the sensor and computing hardware you used and whether it is all on board the copter or not. Best Regards, Gary"
Jun 2
Kostas Alexis posted a blog post

Open-source: Localization Uncertainty-aware Exploration and Mapping Planner

Dear community members,During this ICRA we presented our work on "Uncertainty-aware Receding Horizon Exploration and Mapping using Aerial Robots".This work is now accompanied with an open sourced ROS toolbox available at: https://github.com/unr-arl/rhem_planner These videos present the planner in operation:  In case you find it interesting, we would be happy to support you in order to fully integrate it in your research.Best,…See More
Jun 2
Kostas Alexis posted a blog post

Robotized Radiation Mapping

Dear community members,This is very preliminary work on aerial robotic radiation detection in real-time and in a GPS-denied manner. The robot localizes based on visual-inertial data and integrates a deferentially installed 2-radiation detectors solution to exploit their polarity characteristics. Most of the research is ahead but we feel the topic is exciting and would like to communicate it to all of you. In this link you can get updates of our relevant work: …See More
Apr 25
Cameron Owen commented on Kostas Alexis's blog post Autonomous Exploration and Mapping in Darkness
"Great stuff! Are you going to make the work accessible for others to test? If not is there a plan to commercialise the system? As you might have guessed, my interest is in underground mining."
Mar 9
Kostas Alexis commented on Kostas Alexis's blog post Autonomous Exploration and Mapping in Darkness
"Hi Cameron, thanks for your interest. There is no use of UWB or other external localization system. The system performs localization solely based on the camera images and the IMU. The ToF sensor supports the mapping task. You are very correct…"
Mar 9

Profile Information

Please tell us a bit about your UAV interest
Aerial Robotics Autonomy
Hometown:
Reno

Kostas Alexis's Blog

Open-source: Localization Uncertainty-aware Exploration and Mapping Planner

Posted on June 2, 2017 at 1:30am 4 Comments

Dear community members,

During this ICRA we presented our work on "Uncertainty-aware Receding Horizon Exploration and Mapping using Aerial Robots".

This work is now accompanied with an open sourced ROS toolbox available at:…

Continue

Robotized Radiation Mapping

Posted on April 25, 2017 at 6:26pm 0 Comments

Dear community members,

This is very preliminary work on aerial robotic radiation detection in real-time and in a GPS-denied manner. The robot localizes based on visual-inertial data and integrates a deferentially installed 2-radiation detectors solution to exploit their polarity characteristics. Most of the research is ahead but we…

Continue

Autonomous Exploration and Mapping in Darkness

Posted on March 7, 2017 at 2:00pm 3 Comments

We would like to share two of our recent and ongoing results related to autonomous exploration and mapping in darkness. As opposed to approaches that rely on localization based on LiDAR systems, the videos below rely on visual-inertial localization with LEDs illuminating the scene appropriately. For the first case, visible-spectrum cameras are…

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Autonomous Exploration and Inspection Using Flying Robots

Posted on January 28, 2016 at 10:53pm 11 Comments

Hi all, 

We recently released this video on autonomous exploration and inspection. Have a look!

Summary: 

The robot employs its visual-inertial navigation system in order to localize itself in the environment and simultaneously map it and 3D reconstruct it. Based on the newly proposed "Receding Horizon Next-Best-View…

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"Autonomous Christmas Lab": a robotic "Merry Christmas!"

Posted on December 16, 2014 at 7:00am 4 Comments

Dear members of the drones community,

For one more year... the time has come! 

The Autonomous Systems Lab at ETH Zurich just released the "Autonomous Christmas Lab 2014" video! Watch and share! Robots are indeed excellent Christmas…

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