Re: How much per camera???
You can buy an one off bottom of the barrel Gopro for £150.
Not including volume discounts.
Nor cheaper not so 'hip' make.
At best - £70 per non-Gopro.
£410 per back-end system and licensing?
Also supports and ongoing licensing will be Opex and not Capex.
Clearly the article does not clarify if this is either, but gut feeling is this is Capex.
For the remaining 1,541,600 (after the cameras are bought) you can build some great archival and retrieval system, AWS (S3 and Glacier) or in house with the Hypervisor of your choice.