The Raspberry Pi camera module should be available soon:
Camera board – first demo of the final hardware! | Raspberry Pi
3 or 4 of those (depending on field-of-view) would cover 360 degrees, but you'd need some software to stick it all together.
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The Raspberry Pi camera module should be available soon:
Camera board – first demo of the final hardware! | Raspberry Pi
3 or 4 of those (depending on field-of-view) would cover 360 degrees, but you'd need some software to stick it all together.
The school would probably need to have a policy to cover this if the system was used as general cctv for the security of staff, students and equipment then that would be fine.
Teachers TV footage or other published pictures would be available to 3rd parties school cctv type footage is not apart from under certain conditions such as for police evidence.
Ben
Actually, investigating this it looks as though a camera pointing at a catadioptric mirror is a better bet - you can just record a video as a standard video file and un-warp it at playback time. Quite remarkably, it seems that this is now possible to do in real time with HTML5 and a bit of Javascript - you create two canvas elements, place a video element on one of them (which you hide) and have a Javascript event handler called for every frame update that applies a transform and copies the content to the second canvas element (which you actually make visible).
We have just bought in to the IRIS system, and I am of a similar mind to others, in that it is expensive and could be done much more cheaply. However is it much simpler to use than setting up all the required components separately and getting them to work every time. Whilst we as technical folk will find it simple enough, this system is simple enough for most teachers to use. I and my team are busy enough and we really don't have the time to be recording numerous lesson observations so I appreciate the money has been fairly well spent.
Next week I will take a look at our system to see if there is anything on the microphones to identify the manufacturer. Good quality sound is as important as the pictures, no point recording the lesson if can't hear it.
What's the problem with the mic? We only use the standard one, but I'm sure I remember something about being able to add more.
Have you any visualisers in school? The Genee range have models with CCD camera's (same type as in CCTV) and can record directly to SD card - would that work?
Why not use a visualiser. We use the the Genee Vision 3100. It has a flexible neck to its easy to point in any direction and it can record direct to SD card or if we want record it on the computer. We often use the a visualiser with a response system to get direct feedback from the lesson and use the footage shot on the visualiser in future lessons as part of the lesson plan.