An example of the Parallax effect...
Beau Schwabe
Posts: 6,568
As a mentor to a local robotics club that meets on Saturdays, one of the goals brought up was to design a robot with the ability to 'see' and judge distance without using sonar or IR, because it could potentially interfere with one of the competing robots.
Attached is a rough draft proof of concept that I thought I would also post to the forum. A friend of mine, who is Chief engineer and programmer for Biomedical Image Processing, 3D Visualization, and Molecular Imaging at the University of Oklahoma Health Sciences Center suggests that this method of using “stationary depth perception” is a very similar approach to how the MRI and CT imaging algorithms process an image in his line of work.
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Beau Schwabe
IC Layout Engineer
Parallax, Inc.
Attached is a rough draft proof of concept that I thought I would also post to the forum. A friend of mine, who is Chief engineer and programmer for Biomedical Image Processing, 3D Visualization, and Molecular Imaging at the University of Oklahoma Health Sciences Center suggests that this method of using “stationary depth perception” is a very similar approach to how the MRI and CT imaging algorithms process an image in his line of work.
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Beau Schwabe
IC Layout Engineer
Parallax, Inc.
Comments
Regarding depth perception, I've long thought that a binocular vision system with a way of cross-correlating portions of the two images, could provide excellent depth information. In fact it's something I want to try with a one-dimensional camera (i.e. TSL1401-DB), using the Propeller Backpack as the processor. The missing element is a transition board to mount two of the detectors on, so their axes are collinear. The idea might work best with slit lenses, rather than something focusable, in order to blend the vertical gray levels together.
-Phil
"I've long thought that a binocular vision system with a way of cross-correlating portions of the two images, could provide excellent depth information." - I'd love to see something come out of this... "Parallax with Parallax Inc."
Based on my proof of concept, you could use only one camera and achieve the 'angled' view by way of a few optics external to the camera lens to create the 'split screen' for later comparisons. That way the detection axis with respect to the camera would be collinear.
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Beau Schwabe
IC Layout Engineer
Parallax, Inc.
Leon
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