 | | Re: Working motorized focus for Vision Command —Timothy Schroeder
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| | | Thanks for replying! I was thinking of the same procedure. But to help with the varried depth problem, a small part of the viewed area could be selected to be the focusing point. So overall, it must be possible, right? Timothy (...) (22 years ago, 18-Dec-02, to lugnet.robotics)
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| | | | | Re: Working motorized focus for Vision Command —Steve Baker
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| | | | (...) Yes - that'll also make the algorithm run faster. (...) I'm sure it's possible. What I'm not sure about is whether the kind of naive algorithm that I could come up with after just a few minutes thought would be effective. It might take some (...) (22 years ago, 18-Dec-02, to lugnet.robotics)
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| | | | | | Re: Working motorized focus for Vision Command —Timothy Schroeder
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| | | | I have no idea how to access the camera from a programming language, nor do I have any experience in raw vision proccessing. Do you know how to do any of these previously meantioned? Timothy (...) (22 years ago, 18-Dec-02, to lugnet.robotics)
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| | | | | | Re: Working motorized focus for Vision Command —Michael Obenland
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| | | | | (...) No problem. The VC camera is a repacked Logitech. You can get a free quickcam SDK from the Logitech homepage. With that, you can program the camera under Windows. If you want to use Linux, things get a bit more complicated. You could use (...) (22 years ago, 18-Dec-02, to lugnet.robotics)
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| | | | | | Re: Working motorized focus for Vision Command —Andy Miller
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| | | | (...) Timothy, One source of inspiration for the focusing algorithm is to look at codes that expand the depth of focus by stitching together the in-focus portions of multiple images. This is used in microscopy quite a bit. The software has to be (...) (22 years ago, 18-Dec-02, to lugnet.robotics)
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| | | | | | Re: Working motorized focus for Vision Command —Timothy Schroeder
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| | | | | But how to I "weave" the SDK and the algorithms IN VC++? I am only wondering if this idea of an autofocusing lego cam is feasible. One day I may learn enough VC++ to be able to acomplish this project :-) I'm glad to know there is hope! Timothy (...) (22 years ago, 18-Dec-02, to lugnet.robotics)
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| | | | | | | Re: Working motorized focus for Vision Command —Michael Obenland
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| | | | | | (...) If you download the SDK you will also get some demo programs. They will run with VC++ and show how to get a video stream to a window and how to use the motion detection feature of the camera driver. The demos don't help much for Kylix/Linux (...) (22 years ago, 19-Dec-02, to lugnet.robotics)
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| | | | | | Re: Working motorized focus for Vision Command —Steve Baker
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| | | | (...) from one end to another taking pictures as you go, and selecting the best parts of each, you'd end up with better-than-perfect focussing. I guess you'd want to be careful to mount the camera very rigidly so it doesn't wobble as you drive the (...) (22 years ago, 19-Dec-02, to lugnet.robotics)
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| | | | | | Re: Working motorized focus for Vision Command —Andy Miller
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| | | | (...) That would sure help make the image processing faster, but techniques do exist for image registration (e.g. (URL) This is often required for MRI or electron microsope images since the movement of the apparatus affects the image scale, skew and (...) (22 years ago, 19-Dec-02, to lugnet.robotics)
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