Archive for the ‘Vision’ Category

The Bioloid Expert Kit Is Here!

Thursday, May 17th, 2007

Ok. I’ve seen you strutting around at the competitions, with your fancy clothes and your fancy platinum jewelry and your fancy modded KHR-2HV. I know you think you’re the O.G. of the hobby robotics scene. Well… you’re not. I’m sorry. You’re not as cool as you think you are, because you do not have this:

alt The Bioloid Expert Kit. Shiny.Now available from Trossen Robotics

Compared to the Comprehensive kit, the Expert kit boasts a slew of additional hardware and software. In addition to extra frames, actuators, sensors, and controllers; there are a number of new items that set this kit apart from all of the others. More programming tools have been added, as well. The manual is full of tutorials for programming your Bioloid using the Motion Editor, Behavior Editor, and C++. Now that I’ve got your attention, let’s take a look under the hood.

Open up the top compartment, and you’ll find a complete Comprehensive Kit. Eighteen AX-12+ actuators, one AX-S1 sensor module, CM-5 controller, and all the usual trimmings. alt
alt Remove the top compartment. This action requires the unbuckling of four latches, so the initial un-boxing is very dramatic. The bottom compartment is where the real fun is. You’ll find three more actuators, two more sensor modules, and another complete Comprehensive frame set; but that’s not all!
What you’re looking at here is the Robotis wireless camera set. The receiver can connect to a computer via USB, plus it has an RCA composite video output so you can connect it directly to a TV. alt
alt The camera itself is about 1 cubic inch, and it sports two AX-series Dynamixel connectors. The Expert Kit CD contains image processing tools, which you can integrate into your programs to add motion tracking, line following, path detection, and many other vision-related capabilities!
altEverything’s going wireless! You can install these Zig100 modules in the CM-5 controllers for exchanging data between robots, or you can use one CM-5 as a remote to control the other. And what’s this? A Zigbee to RS232 converter! Now you can command your Bioloid creations wirelessly from your PC. (I know it’s already pretty easy to accomplish this by hacking a Bluetooth transceiver, but now there’s an off-the-shelf solution for less adventurous users.)  
alt USB2Dynamixel adapter. I’m really excited about this particular gadget. It allows you to control a network of Dynamixels directly from your computer, bypassing the CM-5 controller entirely!
Bonus! In addition to the standard Bioloid 3-pin TTL port, the USB2Dynamixel has a 4-pin RS485 port, which would theoretically allow you to control Robotis’ shigh-end DX series of Dynamixels. I say theoretically because I haven’t tried it yet, and there’s no info in the manual about controlling RS485 Dynamixels. alt
alt In addition to all of the previously mentioned goodies, you get a pile of fuses and a nice fine-tipped screwdriver.Also, our kit contained an impressive quantity of silica gel packets, ensuring that everything is free from moisture. I know it looks delicious, but the packaging clearly states that it should be thrown away rather than eaten.

Well, thanks for reading the Bioloid Expert Kit Unboxing Extravaganza! Final word: This kit is just stacked full of awesome stuff, and I can’t wait to see all the different ideas that it will inevitably inspire.

Humanoid HR-V1 inspecting pen

Monday, May 7th, 2007

Um, holy crap this is impressive. (As long as it’s not faking it)

Can’t tell you much other than we stumbled upon this video on Youtube. It was posted by an Alex Vogler and here is his homepage.

Computer rates females “Beauty”

Tuesday, March 20th, 2007
faces

Scientists have been researching what “beauty” is for a long time.  We have known for some time that symmetry, smoothness, and “average” features play a large role in what we humans determine to be beautiful. The theory is that we are attracted to mate with others who show the least amount of flaws indicating their superior genetic makeup. This website lets you combine multiple faces to create a beautiful average of your liking. It’s a little like playing perverted Frankenstein and it is a bit addictive.

saira.mask

Two Australians at the University of Technology Sydney have invented a software program that distinguishes a beautiful face from a less attractive one.

Their invention uses facial measurements, related to ratios and images of models, actors and some 200 women from around the world.

After a photograph of a woman’s face is put into the program, it returns a beauty rating of between one and 10.

University of Technology Sydney computer scientists Hatice Gunes and Massimo Piccardi believe the software could be used in fields such as cosmetic surgery.

Read Story

Mirage Stereo vision from a single camera

Friday, March 16th, 2007
Mirage_Robotics

There is an interesting discussion happening over at robots.net around the theory of using mirrors to create stereo vision from single cameras.

Nelson Bridwell writes, “One of the many excuses for not using stereo vision on mobile robots is the complexity and expense of arranging two synchronized cameras that can simultaneously capture image frames from different positions. However, in many cases it is possible to capture simultaneous images from two different positions, using only a single camera and a single element mirror arranged in a very simple geometry.” For more details on this idea plus diagrams and photos, see Real Time Stereo from a Single Camera

Link to discussion

related: Real Time Stereo from a Single Camera by Nelson Bridwell

Computer model mimics neural processes in object recognition

Thursday, March 1st, 2007
robot vision

For the first time, MIT scientists have applied a computer model of how the brain processes visual information to a complex, real world task: recognizing the objects in a busy street scene. The researchers were pleasantly surprised at the power of this new approach.

“People have been talking about computers imitating the brain for a long time,� said Tomaso Poggio, the Eugene McDermott Professor of Brain and Cognitive Sciences and a member of the McGovern Institute for Brain Research at MIT. “That was Alan Turing’s original motivation in the 1940s. But in the last 50 years, computer science and AI (artificial intelligence) have developed independently of neuroscience.�

keep reading article 

OpenCV – Open Source Computer Vision Library

Thursday, February 15th, 2007

Thanks to the hard work of 20 developers, there is an open source vision library, freely available to the public, named OpenCV.

This library is mainly aimed at real time computer vision. Some example areas would be Human-Computer Interaction (HCI); Object Identification, Segmentation and Recognition; Face Recognition; Gesture Recognition; Motion Tracking, Ego Motion, Motion Understanding; Structure From Motion (SFM); and Mobile Robotics.

Wondering about some credentials and how well this software works? OpenCV was used as the vision system of “Stanley”, the winning entry to the $2M DARPA Grand Challenge race of 2005.

Yahoo Group Stanley

Wondering what kind of a support community is out there for a vision library of such a caliber? There is a Yahoo Tech Group currently with 23,804 members who are contributing to this library’s success. If your interested in being a part of this community, join this group and find more out about this library and what you need to do to get started with implementing it in your own projects.

Convinced? I thought so. The library can be downloaded at the OpenCV Sourceforge Page, where more information can be found about the library as well.

via Intel

Reverse Engineering Ourselves

Thursday, February 8th, 2007
scientific american

Scientific American publishes special editions of their magazine where they collect a bunch of essays around a common theme. These issues are standard reading for true geeks. Recently they published an issue called Secrets of the Senses. This was a collection of essays detailing the latest understanding science has on how all the human senses work. Essentially, it’s all about reverse engineering how the brain and nervous system work. You can probably guess where I’m going with this, that’s right, this info is all about how to build better robots.

An article of particular interest was Neuromorphic Microchips by Kwabena Boahen. He is working on leading edge research learning how to build microchips that mimic the eye’s nerve system. You can read an older article about his work here.

Bioengineering professor hopes to mimic the brain on a chip

kwabena-boahen

Focus Robotics PCI nDepth Stereo Vision System

Wednesday, January 10th, 2007
angle
card

PCI nDepthâ„¢ Vision System
Overview

Focus Robotics nDepthâ„¢ PCI vision system is for companies and individuals looking to add real-time depth perception to an existing PC platform. Operating at 30 frames per second for 752×480 images, the PCI nDepth” vision system provides outstanding depth performance for demanding applications such as mobile robot navigation, people tracking, gesture recognition, targeting, 3D surface visualization and advanced human computer interaction.

Visit the Focus Robotics site 

Vision Based USB Missile Launcher !

Thursday, January 4th, 2007
usb_missile_launcher

We posted about another USB missile launcher before and ruminated about someone making a viaion tracking device with one. Well RoboRealm has gone and done just that with a different USB Missile Launcher! They have a whole tutorial posted about it here for people who want to do it themselves.
Link 

RoboRealm – Free Robotic Vision Software

Thursday, January 4th, 2007
roborealm

If you are into Robotic vision RoboRealm is something you need to check out:

RoboRealm® is a powerful robotic vision software application for use in machine vision, image processing, and robot vision tasks. Using an easy to use point and click interface complex image analysis and robot control becomes easy!