Because I work for automotive company . if this confuse you , ignore the surroud view and adas .
About the ISP , what I understand . from http://pub.ucpros.com/download/ov7620_ov7120_v1.2whole.pdf?osCsid=g3j4cfseca1627jv9mc4lans75 You will get bt656 signal at last , right ? how do you connect to your BBB board ? with USB ? You must have another mcu to convert BT656 digital signal to memory data right ? so , if you can connect directly to OMAP3 ,you can save the USB MCU Here is about the cvbs signal http://en.wikipedia.org/wiki/Composite_video You can see , its a analog signal with base band . But , with gpio , it can only generate 1 or 0 ,totally different raspi FM 2014-09-30 13:11 GMT+08:00 Peter Fearing <[email protected]>: > I'm not sure what you mean by surround view/adas. They're both forward > facing and will be fixed in position to try to eliminate any possible > alignment issues. > > I can't see that the ISP is necessary for all image processing. If so > that would make the Black completely incompatible with any sort of camera > project, and I've found plenty of examples of people using cameras with it > -- just no analog cameras yet, which to be fair won't be necessary for the > final version of what we're doing. > Certainly there are available capes for expanding the USB capabilities, > and it's possible the necessary cameras can be recognized as USB cameras. > I've even seen a couple camera capes that are comparable to what we're > doing. > > Can you be more specific about the limitations on generating a CVBS signal? > > On Friday, September 26, 2014 2:22:40 AM UTC-5, liyaoshi wrote: >> >> And >> omap3 have 3 hardware overlay >> >> 2014-09-26 15:11 GMT+08:00 liyaoshi <[email protected]>: >> >>> If I understand correctly >>> It should like surround view or adas ? >>> and as I know , AM335X don't have isp . while omap3 have it . >>> while cvbs signal in . camera module will turn to bt656 or what ever >>> digital signal , as usually BT656 >>> >>> And when you can catch BT656 digital signal . you can program it to >>> overlay or something . >>> >>> And about the CVBS out signal . You can NOT generate it by GPIO . >>> >>> For Your application .As I think , You should use OMAP3 BB-XM board with >>> omap3 soc >>> >>> It will have a isp and cvbs out,only problem is it will only have 1 isp >>> >>> if you want to get another work with usb . >>> >>> >>> >>> >>> >>> 2014-09-26 4:32 GMT+08:00 <[email protected]>: >>> >>> Hi all >>>> >>>> I and a couple guys are trying to build a system from the BeagleBone >>>> Black that uses an IR and color camera for quadcopter video. >>>> We have one of each of these cameras >>>> http://dlnmh9ip6v2uc.cloudfront.net/datasheets/ >>>> Sensors/LightImaging/32KM_spec.docx.pdf >>>> http://pub.ucpros.com/download/ov7620_ov7120_v1.2whole.pdf?osCsid= >>>> g3j4cfseca1627jv9mc4lans75 >>>> http://www.drs.com/products/rsta/PDF/Tamarisk.pdf >>>> The end goal is to be able to output a video stream of either (1) the >>>> color camera (2) the IR camera (3) a composite video - b/w or color, >>>> overlay or other. It has to be composite video for the quadcopter. (it's a >>>> system already setup and we're just doing add-on) >>>> Known problems: >>>> The BeagleBone Black only has one USB port. I can probably figure out >>>> how to make the IR camera recognizable by the system through the USB port, >>>> but the other two are a bit more complicated -- one is purerly analog NTSC >>>> and the other has a variety of digital options and a monochrome NTSC >>>> backup/test output. Maybe there's a way to configure the GPIOs to handle >>>> this? >>>> I'm planning on using OpenCV for the overlay/processing, though I'm not >>>> very familiar with it. >>>> >>>> Sound crazy? It is, but that's what we're doing... >>>> >>>> -- >>>> For more options, visit http://beagleboard.org/discuss >>>> --- >>>> You received this message because you are subscribed to the Google >>>> Groups "BeagleBoard" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to [email protected]. >>>> For more options, visit https://groups.google.com/d/optout. >>>> >>> >>> >> -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
