by Nirav Patel
Math. It turns out its not quite like riding a bike. A year since college, and two since my last computer vision course, my knowledge of linear algebra is basically nil. Several projects I’m stewing on are bottlenecked on this. I decided to relearn some basics and create a tool I’ve wanted for a while, …
Continue reading “Easy Interactive Camera-Projector Homography in Python”
This idea, like most good ones, came to me while I was in my bathroom. I recently took delivery of a Microvision SHOWWX laser pico projector, and I was trying to come up with a quick project to show the cool stuff it could do. I noticed that the light above my mirror was diffused …
Continue reading “Evil Eye: Microvision SHOWWX as a Face Tracking Eyeball”
The title of this post is almost too thick with geeky goodness. This past week, the ECE department at CMU held the kind of event I’ve been dreaming of for years: give a bunch of students free parts and access to labs and see what happens. The event was called build_18 (sorry, no public site …
Continue reading “XBee Enabled Arduino Based Wireless Multimeter”
Over the last semester, my 18-549 group of Adeola Bannis, Claire Mitchell, Ethan Goldblum, and I has designed and prototyped a magic wand for theme park patrons to use for group games while waiting in long lines. The initial idea of a crowd interaction device (and several thousand dollars of funding) was provided by Disney …
Ok, here is some working code for face detection using the XO’s webcam. It requires the opencv, opencv-python, and xawtv packages. Xawtv can be skipped if you change it to use gstreamer instead, but gstreamer takes around 3 seconds to initialize the camera, take a picture, and save it. Xawtv, on the other hand, takes …
Hello all (though I’m being a bit optimistic with the word all), I’m Nirav Patel, a rabble rouser, robot herder, meatsmith, moonshiner, psuedocryptozoologist, and all around eclecticc individual. I’m also a Junior in Electrical and Computer Engineering at Carnegie Mellon University. This web log, or blog as it may be known, is documentation of the …
Sugar is fine and dandy, but its nice to have the option to run something a little less… sweet. Unfortunately, with a 433mhz Geode and 256mb of RAM, its kind of a stretch to run a real desktop environment like Gnome or KDE on an XO, and even XFCE is a bit heavy. Luckily, with …