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This is for a project I am working on, to ... Posted by: nwerneck
Video duration: 41 seconds This is for a project I am working on, to make a 6DOF tracker of solid bodies based on detected points. It's just another version of something rotation randomly, like the cube in one of my videos. This one is cool because I am working all the time using quaternions. You can check the code at http://code.google.c om/p/ekf6dof/ . Made with Python, using pylab (matplotlib+numpy). Related: tracking, computer vision, demo, kalman filter, random, demonstration, python, pylab, matplotlib Display Video Comments | Hide Video Comments | Add Comment |
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Inside the camara obscura at the Cliff House (San Francisco) Posted by: nwerneck
Video duration: 102 seconds This is what you see inside the camara obscura at the famous Cliff House in San Francisco. As the mirror on top of the room rotates, you get to see the projection of the whole panorama around you. The image on the table rotates according to the direction. This white table where the image is projected on is concave. Related: san francisco, tourism, camara obscura, projection, painting, camera Display Video Comments | Hide Video Comments | Add Comment |
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Decolagem do Aeroporto de Confins (MG) Posted by: nwerneck
Video duration: 99 seconds Video bobo de um avião da Gol decolando no CNF... Related: mobile video cellphone, airplane, take-off, airport, airstrip, flight airport plane Display Video Comments | Hide Video Comments | Add Comment |
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Sutro Tower being covered by clouds Posted by: nwerneck
Video duration: 47 seconds Sutro Tower being covered by clouds, seen from the Stow Lake at Golden Gate Park, San Francisco. Related: 08132011005 Display Video Comments | Hide Video Comments | Add Comment |
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The Mano Cherga Band at Amnesia Bar (3 of 3) Posted by: nwerneck
Video duration: 271 seconds The Mano Cherga Band playing at the Amnesia Bar, San Francisco, 2011-08-06 Related: 08072011004 Display Video Comments | Hide Video Comments | Add Comment |
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The Mano Cherga Band at Amnesia Bar (2 of 3) Posted by: nwerneck
Video duration: 487 seconds The Mano Cherga Band playing at the Amnesia Bar, San Francisco, 2011-08-06 Related: 08072011003 Display Video Comments | Hide Video Comments | Add Comment |
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The Mano Cherga Band at Amnesia Bar (1 of 3) Posted by: nwerneck
Video duration: 284 seconds The Mano Cherga Band playing at the Amnesia Bar, San Francisco, 2011-08-06 Related: live music, live concert Display Video Comments | Hide Video Comments | Add Comment |
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Checkerboard corridor CG film made with Python Posted by: nwerneck
Video duration: 34 seconds This is a computer graphics animation made with a simple Python program. Just along corridor with a checkerboard pattern, and the camera moves along it while oscillating in all possible ways. You can check the source code at my blog, in "Journey through a two-tone corridor" http://wp.me/pEAX Y-2t Related: python, computer graphics, corridor, two tone Display Video Comments | Hide Video Comments | Add Comment |
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Walking down a hallway with an improvised steadycam Posted by: nwerneck
Video duration: 19 seconds This is a video I made for a computer vision research. It was shot with a small Samsung SC-D391 miniDV camcorder tied with a string to a pair of umbrellas and other stuff, a poor man's steadicam! This is a rehersal video, next one shouldn't have the strong rotation in the end... Related: steadicam, hallway, corridor, computer vision, monocular vision Display Video Comments | Hide Video Comments | Add Comment |
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Narrow FOV navigation with UKF: method 4 Posted by: nwerneck
Video duration: 4 seconds Skipping method 3, here is the last example. The animation doesn't show much of a difference, but what we do at each iteration is considering both the current and the previous readings. Perhaps a better animation might come later... The green bars are really just to give a taste of how the data being analyzed looks like. Previous video http://youtu.be/FAjk Z6l_pW0 Related: nfn, m4 Display Video Comments | Hide Video Comments | Add Comment |
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Narrow FOV navigation with UKF: method 1 Posted by: nwerneck
Video duration: 16 seconds This video demonstrates one possible model to perform mapping and localization using a Kalman Filter. Here we are working directly with the distance estimates. As the camera moves, the uncertainty on its position grows, and that is reflected on the uncertainty on the objects positions. When a new reading happens, the uncertainties are updated, hopefully for better. Related: kalman filter, monocular slam, computer vision Display Video Comments | Hide Video Comments | Add Comment |
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Camera tracking simulation (bad sensor) Posted by: nwerneck
Video duration: 80 seconds This is like my previous video, but with a bad sensor. It's easy to see how the relative precision of the sensor model impacts the estimate quality. Not only the uncertainty is larger in general, but the direction of the correlation is orthogonal to the other case, where it points towards the center, and not along the track. Related: rectbad Display Video Comments | Hide Video Comments | Add Comment |
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Camera tracking simulation (good sensor) Posted by: nwerneck
Video duration: 80 seconds This is a simulation of a camera tracking algorithm, based on the UKF. Compare to the "bad sensor" one ( http://youtu.be/9vq6 UW7vIA0 ). Related: rectgood Display Video Comments | Hide Video Comments | Add Comment |
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