четверг, 18 ноября 2010 г.

Kinect прикрутили к роботу клево

Kinect sensor bolted to an iRobot Create, starts looking for trouble

While there have already been a lot of great proof-of-concepts for the Kinect, what we're really excited for are the actual applications that will come from it. On the top of our list? Robots. The Personal Robots Group at MIT has put a battery-powered Kinect sensor on top of the iRobot Create platform, and is beaming the camera and depth sensor data to a remote computer for processing into a 3D map -- which in turn can be used for navigation by the bot. They're also using the data for human recognition, which allows for controlling the bot using natural gestures. Looking to do something similar with your own robot? Well, the ROS folks have a Kinect driver in the works that will presumably allow you to feed all that great Kinect data into ROS's already impressive libraries for machine vision. Tie in the Kinect's multi-array microphones, accelerometer, and tilt motor and you've got a highly aware, semi-anthropomorphic "three-eyed" robot just waiting to happen. We hope it will be friends with us. Video of the ROS experimentation is after the break.

понедельник, 15 ноября 2010 г.

Benchmarks 2: snap,happstack,yesod,manos,nginx,go http lib.

all haskell compiled with threaded and run with +RTS -A4M -N4 -qg0 -qb -g1

tested with httperf --hog --num-conns 1000 --num-calls 1000 --burst-length 20 --port 3000 --rate 1000 --uri=/pong

snap (from cabal)7038.1 req/s

happstack (from darcs) 2715.3 req/s

yesod (from cabal) simple = error

yesod (from cabal) dev = error

yesod (from cabal) wai snap = 1322.2 req/s

manos(mono 2.8) = error

go = 3693.8 req/s(186 errors)

 

nginx static = 14993.4 req/s(112 errors timeout)

snap static = 4701.2 req/s

 

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