Re: Rép. : [K12OSN] Capturing snapshots from camera

Doug Simpson simpsond at leopards.k12.ar.us
Fri Nov 7 14:05:23 UTC 2008


But with the dogs, there won't be any "evidence". The cars will leave the things laying around. . .They'll be GONe with the dog method!

DS

Doug Simpson
Technology Specialist
De Queen Public Schools
De Queen, AR
simpsond at leopards.k12.ar.us
"A Dollar Saved is a Dollar Earned"


>>> Brian Chivers <brian at portsmouth-college.ac.uk> 11/6/2008 1:15 PM >>>
Nice idea, I was going for Radio Controlled car with pointy sticks !!!

Rob Owens wrote:
> I've got an idea.  Why don't you fence the field in and put some dogs in
> there.  Then the geese will be easy to count -- because there won't be any!
>
> -Rob
>
> Brian Chivers wrote:
>   
>> :-) I agree but the bosses want so I have to so that I've tried.
>>
>> What I've got working at the mo is a WinTV card (bt878 based chipset)
>> with a CCTV camera with a nice lens on.
>>
>> I'm using I'm running Ubuntu 8.10 with XAWTV + STREAMER, I've then got a
>> cron job setup that takes a snapshot and scp's it to one of our other
>> servers. The bosses can then via with and do with it what they like :-)
>>
>> Only little issue I had was that xawtv will has to run to initialise
>> that card so what I've done is got the box to autologin and run XAWTV
>> this allows the cron job to run OK. The screensaver is set to 30 seconds
>> so this stop anyone fiddling & it's also locked away in a store cupboard
>> so hopefully it'll be OK for this year.
>>
>> The best part is that we've got to do the survey I think it's 8 times a
>> month for the next FIVE years !!!! That's going to be a lot of jpeg's
>> they have to look through.
>>
>> It's a bit of a dirty hack but it gives me some breathing space to look
>> at webcams that'll do the job better & easier :-)
>>
>> Thanks for all the pointers to the webcams, I've stored these away to
>> look at and hopefully buy a few to play with when they "bean counters"
>> aren't looking
>> Brian
>>
>> Guy-Michel Lessard wrote:
>>     
>>> Youre really screwed with this. OK there you go, either ou get a
>>> quality webcam (glass zoom lens, ...) or a capture card and a cctv
>>> camera. I still think that the webcam would be the easy way.
>>>  
>>>
>>>
>>>       
>>>>>> Brian Chivers <brian at portsmouth-college.ac.uk> 2008-11-05 05:26:17
>>>>>>
>>>>>>             
>>> Sorry, I was a little "embarrassed" to say what I actually need it to
>>> do :-)
>>>
>>> The lawyers have looked into this & it's them that have told us we'd
>>> have to do it :-/
>>>
>>> Brian
>>>
>>> Doug Simpson wrote:
>>>       
>>>> See? If you had been just a tad more explicit as to what you were
>>>>         
>>> looking to be looking at, we would have saved a lot of time, here. . .
>>>       
>>>> Is there any indoor location with a clear view of that field?  Some
>>>>         
>>> regular webcams come with software that will sit there and record, but
>>> only capture any data when there is actual activity. Kinda like a
>>> motion-activated video recorder. Had a good sized hard drive in an
>>> olod laptop connected to a decent quality webcam with the
>>> motion-activated recorder and there ya go. You should be able to see
>>> geese in even an inexpensive webcam unless the field is a quarter mile
>>> away or something. . .
>>>       
>>>> DS
>>>>
>>>> Doug Simpson
>>>> Technology Specialist
>>>> De Queen Public Schools
>>>> De Queen, AR
>>>> simpsond at leopards.k12.ar.us 
>>>> "A Dollar Saved is a Dollar Earned"
>>>>
>>>>
>>>>         
>>>>>>> Brian Chivers <brian at portsmouth-college.ac.uk> 11/4/2008 12:39 PM
>>>>>>>               
>>>> OK I'll give you all little more background and it might explain my
>>>>         
>>> need
>>>       
>>>> for quality :-)
>>>>
>>>> You assumed that we're looking at people :-) we need to count GEESE yes
>>>> that's right we need to know how many geese roughly are using our field
>>>> before we are allowed to build a new college. These are  Brent geese
>>>> that come over from Canada to feed etc & the local nature people have
>>>> said we need to have numbers before we can go ahead, they've said that
>>>> snapshots would be OK.
>>>>
>>>> It's ridiculous that geese are stopping us build a new College but it's
>>>> taken almost 3 years to get to this point !!!!
>>>>
>>>> Brian
>>>>
>>>> Doug Simpson wrote:
>>>>         
>>>>> You aren't needing to read the labels on their clothes. . . you
>>>>>           
>>> just need to see if there is someone *there*. . .
>>>       
>>>>> "Quality" isn't as much of a factor as "the presence of" if you are
>>>>>           
>>> using this for the described purpose.
>>>       
>>>>> DS
>>>>>
>>>>> Doug Simpson
>>>>> Technology Specialist
>>>>> De Queen Public Schools
>>>>> De Queen, AR
>>>>> simpsond at leopards.k12.ar.us 
>>>>> "A Dollar Saved is a Dollar Earned"
>>>>>
>>>>>
>>>>>  >>>>> Brian Chivers <brian at portsmouth-college.ac.uk> 11/4/2008
>>>>>           
>>> 7:54 AM >>>
>>>       
>>>>>>>>        >> Problem is that the webcams don't have the sort of
>>>>>>>>                 
>>> lens that we'd need.
>>>       
>>>>> I'm looking at a package called "webcam" that's part of xawtv at
>>>>>           
>>> the mo to see if that'll do it.
>>>       
>>>>> Brian
>>>>>
>>>>> Guy-Michel Lessard wrote:
>>>>>  >>> My gut feeling is do'nt touch that, get a Linux compatible
>>>>>           
>>> webcam. It
>>>       
>>>>>> will be a lot less hassle. I'm sure there will be members here
>>>>>>             
>>> that can
>>>       
>>>>>> suggest easy to get compatible webcams.
>>>>>>
>>>>>>
>>>>>>  >>> Brian Chivers <brian at portsmouth-college.ac.uk> 2008-11-04
>>>>>>             
>>> 06:47:24 >>>
>>>       
>>>>>> I've been asked to setup a camera over looking our College's playing
>>>>>> field to capture an image every
>>>>>> 30 minutes so we can see how much it is being used.
>>>>>>
>>>>>> I have a camera with that has a composite video output that I'd
>>>>>>             
>>> like to
>>>       
>>>>>> use and a video input card
>>>>>> (not sure if it linux compatible, if not I'll get one that is *grin*)
>>>>>> but I'm not sure what software
>>>>>> to use to do this.
>>>>>>
>>>>>> Not worried about motion sensing just need a jpg or something every X
>>>>>> minutes
>>>>>>
>>>>>> Does anyone do this ? Any ideas or pointer where to start.
>>>>>>
>>>>>> Thanks
>>>>>> Brian Chivers
>>>>>> Portsmouth College
>>>>>>
>>>>>>
>>>>>>             
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>>>>>>     The views expressed here are my own and not necessarily
>>>>>>
>>>>>>                 the views of Portsmouth College  >>>
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                the views of Portsmouth College    

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