Rép. : [K12OSN] Capturing snapshots from camera

Brian Chivers brian at portsmouth-college.ac.uk
Fri Nov 7 14:31:21 UTC 2008


I like your thinking :-)

Brian

Doug Simpson wrote:
> 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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>>>>       
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>>>>>>>
>>>>>>>                 the views of Portsmouth College  >>>
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