Need help with CMU Camera Operations
cmfranks
Posts: 4
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Hello everyone,
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····· I just received a CMU Cam for my Boe Bot.· I'm working on a laser range finder, using a laser pointer that scans forward.· I would like to use the CMU cam in conjunction with the "parallax effect" to determine the distance of the light.· I have worked with normal video a little and understand what a single line of video should look like.· I'm not sure if the CMU Cam is the same, though.· I've got an optical band pass filter on the optics so only the laser light will get to the Camera.· I would then like to sample each line of video for a voltage·ramp (probably around 4 V), indicating the presence of the laser light.· It would also be nice to measure the timing of the video line if possible.· In theory I should be able to determine the distance by knowing which line of video is active.· By measuring the timing pulse, I should be able to determine lengths at that known distance, i.e. is the gap up ahead the width of a door or just two obstacles?
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····· I am wondering if anyone else has tried this, and if so, any suggestions?· Does the CMU Cam output normal "NTSC" video signals, and if not, how could I go about doing this?· I would greatly appreciate any feedback.
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·
······ Thank you in advance,
······························· Michael Franks
Hello everyone,
·
····· I just received a CMU Cam for my Boe Bot.· I'm working on a laser range finder, using a laser pointer that scans forward.· I would like to use the CMU cam in conjunction with the "parallax effect" to determine the distance of the light.· I have worked with normal video a little and understand what a single line of video should look like.· I'm not sure if the CMU Cam is the same, though.· I've got an optical band pass filter on the optics so only the laser light will get to the Camera.· I would then like to sample each line of video for a voltage·ramp (probably around 4 V), indicating the presence of the laser light.· It would also be nice to measure the timing of the video line if possible.· In theory I should be able to determine the distance by knowing which line of video is active.· By measuring the timing pulse, I should be able to determine lengths at that known distance, i.e. is the gap up ahead the width of a door or just two obstacles?
·
····· I am wondering if anyone else has tried this, and if so, any suggestions?· Does the CMU Cam output normal "NTSC" video signals, and if not, how could I go about doing this?· I would greatly appreciate any feedback.
·
·
······ Thank you in advance,
······························· Michael Franks