![]() ![]() 胡凡 liked FlexSEA: Wearable robotics toolkit.Glenngallan liked SAP-1 Spreadsheet Edition - Ben Eater Computer.NQ on Ground-Effect Vehicle To Carry Passengers Around Hawaii.Snide on Harvesting Electricity From High-Voltage Transmission Lines Using Fences.ezy on Harvesting Electricity From High-Voltage Transmission Lines Using Fences.paulvdh on Harvesting Electricity From High-Voltage Transmission Lines Using Fences.PWalsh on 3D Printed RC Kart Actually Made Entirely By Hand.Anon on Ground-Effect Vehicle To Carry Passengers Around Hawaii.Josuah on Hotshot 3D Printed Hovercraft Is Devastatingly Fast.Dustin on Harvesting Electricity From High-Voltage Transmission Lines Using Fences.Grawp on Hotshot 3D Printed Hovercraft Is Devastatingly Fast.make piece not war on No Dish? Try A Portable Weave Helix Antenna.Posted in Machine Learning Tagged harry potter, machine learning, opencv Post navigationįLOSS Weekly Episode 767: Owntracks, Are We There Yet? 2 Comments That’ll teach them not to mess with the dark arts. You could also expand it further, such as adding a death ray that triggers if you trace an S for Sectumsempra. It’s a neat build that ties together a number of interesting techniques, and which could keep the kids amused for a while. If the detected letter is an A (for Alomahora, the Harry Potter open spell), then the box opens. ![]() This feeds into a machine learning graph that detects the letters of the alphabet. ![]() The version that built uses a Raspberry Pi NoIR camera, and a Raspberry Pi 3 running OpenCV. This camera is tied into a computer vision system that tracks the path of the dot, then triggers the action if it follows a certain pattern. An infra-red sensitive camera detects this reflected light as a bright dot. The basic idea is that a retroreflective dot on the end of the wand reflects light from a set of infra-red LEDs around the camera. The trick is based on the same technique that Universal Studios use in their Harry Potter theme park, as detailed in a patent with the snappy title of “ System and method for tracking a passive wand and actuating an effect based on a detected wand path“. Is it magic? No, it’s a neat hack that uses computer vision to track the wand and recognize when you make the magic gesture. That’s true with this cool build from that magically opens a box when you wave a Harry Potter magic wand in the right way. Any sufficiently advanced hack is indistinguishable from magic, a wise man once observed. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |