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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

1.8 gigapixel camera

That's pretty nifty. One million terabytes per day! YIKES!
 
8k is so last century.

8k is so last century.

Yep, that is the way I thought he made it, you can tell from the squared stepped image circle. I've had similar ideas to get to fullhd/4k in the olden days. If you get the design, and can figure out how to link them together, you can do a wafer of sensors. Would be interesting to see what gaps are between the sensors, and what strategy they use to image those areas (a moving frame maybe).
 
so if they did that with a ton of cell phone sensors, i wonder what they'd get with the equal amount of epic sensors... the camera would be as big as the uav it's on though :)
 
I dunno.. an Exabyte of data per day is an awful lot of info to store aboard an UAV. Also, that amount of data via some wireless connection is also highly suspect...

Think about it, lets say they are using 4TB drives that weight only ONE POUND, we are talking 250,000 drives (about 250 TONS). Not only that, the price for those drives, at $200 dollars is roughly $50 million bucks, and thats IF they where using normla heavy drives. They would have to create some new tech thats orders of magnitude lighter/more efficient. I call BS on that. Maybe is our govt trying to dissinform some people....
 
could be packed to the gills with solid state, spinning disks wouldn't even be fast enough to write all that data at once. and they never say it gathers all of it in one shot, or from a single plane. could be several out there, and they just come int to get downloaded when they are full up.
 
Tom.Wong said:
could be packed to the gills with solid state, spinning disks wouldn't even be fast enough to write all that data at once. and they never say it gathers all of it in one shot, or from a single plane. could be several out there, and they just come int to get downloaded when they are full up.
Click to expand...

It could still be packed with solid state and it would still weight 40 tons.

Maybe its capable of generating a petabyte of data per day, but it doesnt mean it does.

Maybe its a petabyte of data once its decompressed, kinda like redcode on steroids. Thats a lot more feasable specially considering how wavelets/compression become more efficient as resolution increases...
 
Also the data requirements aren't nearly as impressive as they are made out to be. According to the video it uses 368 cell phone cameras. 368 * 5 megapixels each.

If they're using 5 megapixel cameras they aren't running at 30 fps. Probably 15fps since cell phone cameras don't generally shoot 1080p (2megapixels) above 30fps. So the datarate is most likely similar to a 1080p video stream @ 30fps. Netflix streams at about 3.8mbps for 1080p and that's probably good enough for a mostly static video using regular h264.

3.8mbps * 384 cameras = 1.5gbps. Or 150MBs (well within SSD tolerances). So 150MB * 60 s * 60 min * 24 hours = 13 TB per day. Or about 20 SSDs. If each SSD weighs 85g that works out to about 4lbs of SSDs.

Also pay close attention he says they can "look at 65 windows at a time" 65 * 3.8mbps = 250mbps. Well within ku band satellite internet speeds.

According to Northrop Grumman the global hawk has 47.9Mbps Ku Satcom and 274 Mbps LOS. If it's over a city it undoubtedly has line of sight so the existing com system is capable in most locations. According to a PDF I just found the Global Hawk is scheduled to get 200mbps Ka Band Satcom in the near future.
 
Heard rumors about similar thing back in 2008 or something of that sort. Source claimed, that highly classified digital camera (working model) could do human eye scans from a big distance. These guys get to play with the best toys, hehe.
 
I've always thought multiple sensors would be an obvious solution to quickly producing higher resolution camera systems beyond 1080p. JVC has done this already with their 4K handheld camera, albeit with some drawbacks due to sensor size issues. Doing the same for a S35 camera presents the concept with a brick wall unfortunately. Stacking two or more RED sensors together would work perfectly to produce 8-12K video but the problem is the lenses. By doubling those sensors you would essentially have to have a whole new kind of lens to go with it, assuming that medium format or large format lenses wouldn't fit with both sensors perhaps turned sideways to make a "full frame". But it's only a guessing game until somebody tries it, assuming RED hasn't already tried such a thing for an R&D experiment.

Basically, for this concept to really work practically, there needs to be big developments in smaller sensors. I have a Nokia Pureview 808 and it produces some fantastic still images at 38mp and it's all in a cellphone! If that technology could be doubled or quadrupled into a full frame DSLR equivalent then things would get pretty interesting in the photography world. Granted one theory is that this could mean a drop in DOF performance but because of the lenses on the Pureview and JVC being what they are, it's hard to determine what a S35 or Full Frame lens would do with such a sensor array. Perhaps it would be similar to what an iPhone camera looks like with one of those DSLR lens adapters on it.
 
dwsh0.jpg
 
I do believe they debunked the 1 million terabytes per day as a misinformation. Im pretty sure it came to either 400TB or less per day
 
Gavin Greenwalt said:
Also the data requirements aren't nearly as impressive as they are made out to be. According to the video it uses 368 cell phone cameras. 368 * 5 megapixels each.

If they're using 5 megapixel cameras they aren't running at 30 fps. Probably 15fps since cell phone cameras don't generally shoot 1080p (2megapixels) above 30fps. So the datarate is most likely similar to a 1080p video stream @ 30fps. Netflix streams at about 3.8mbps for 1080p and that's probably good enough for a mostly static video using regular h264.

3.8mbps * 384 cameras = 1.5gbps. Or 150MBs (well within SSD tolerances). So 150MB * 60 s * 60 min * 24 hours = 13 TB per day. Or about 20 SSDs. If each SSD weighs 85g that works out to about 4lbs of SSDs.

Also pay close attention he says they can "look at 65 windows at a time" 65 * 3.8mbps = 250mbps. Well within ku band satellite internet speeds.

According to Northrop Grumman the global hawk has 47.9Mbps Ku Satcom and 274 Mbps LOS. If it's over a city it undoubtedly has line of sight so the existing com system is capable in most locations. According to a PDF I just found the Global Hawk is scheduled to get 200mbps Ka Band Satcom in the near future.
Click to expand...

Gavin, there are 4k video cellphone sensors now, there is likely 5MP at 60fps out there. The circuit in some cheap cameras are designed to work with sensors that can do 16MP at 30fps, and I forget if they have reached 32MP at 30fps on their other chips yet. We were eyeing them to make cameras.
 
Wayne Morellini said:
Gavin, there are 4k video cellphone sensors now, there is likely 5MP at 60fps out there. The circuit in some cheap cameras are designed to work with sensors that can do 16MP at 30fps, and I forget if they have reached 32MP at 30fps on their other chips yet. We were eyeing them to make cameras.
Click to expand...

According to another story they're running at 12 fps. So the data rates are actually below 15fps.
 
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