Thank you and I'm glad that you found this Thread helpful... Right up front I want to add that I am NO expert in this technology and all that I relay here are items I gleaned from the Internet.
(I believe) FLIR is measuring and detecting heat generated from all sources and then calibrated to detect specific parts of the spectrum the desired target(s) generate? The imager constantly clears and updates, much like a digital movie camera and I suspect there is also some method to store information for further scrutiny? As far as I know, the new technology requires no 'floodlight' that 'lights-up' heat targets.
This technology offers 'filters' that target specific heat emitters like marijuana or
still-burning embers in a forest fire ~ so marijuana plants display almost like sore thumbs with no doubt about accuracy! And I'm afraid that any attempts to cover or to use plastic to mask the crop will only serve to create a visible (to FLIR) square (rectangle or what have you) 'target' that would be all too obvious to observers.
I surmise that new FLIR technology 'looks' for
specific 'hits' or 'spikes' of spectrum that marijuana plants generate as they grow? I again offer a attached chart to show how specific plant emissions can be... so apparently, marijuana plants within other crops (as in corn or?) will STILL be very obvious to FLUR. Other items may still show on the display, but specific crops or targets will clearly be shown or intensified on FLUR depending on the filter(s) used.
As mentioned in a earlier post, Lockheed Martin purchased the company that fine-tuned the filtering technology and Martin is famous for government satellites and weapons systems. So if the technology is not used now to monitor broad areas from space in a single sweep, it soon will be!
But nothing stops Martin from creating filters for poppy plants too so I suspect it's only a matter of time before poppy (heroin) crops are targeted too. And it won't matter what country or territory they are in and as long as targets are in view of the FLIR sensor(s). Of course we all know that satellites can be 're-tasked' to observe any place on earth 'they' desire.
Indoor growers should know that a pattern of indoor lights will also show up as 'unusual' and through the roof as "hot-spots" and this is especially true of high-heat light sources. So six or ten lamps (HPS in example) placed in half or a third of a structure will really be suspect! I also suspect heat vapors from exhaust systems from structures will also be 'seen' as easily as a tail on a dog?
Further, I suspect (not positive) specialized FLUR equipment will
not be required to spot unusual heat patterns on roofs today! That is, common FLIR detectors in use today by most larger police departments have
no problems spotting possible indoor farms by light patterns ~ unless the farm is in a basement? But again, high heat from a exhaust systems can be suspect too.
Folks, these are your tax dollars at work and it's a tragedy that something so good can be painted so bad... marijuana that is. Given the chance, vote YES on any measure that serves to decriminalize marijuana! If you are not registered to vote take the time to do so and inform yourself on who the enemies to peace are and vote their asses out.
Off my soapbox for now... I know I've digressed from my original Thread topic, but there is no need for us to remain captive and prohibited from our "pursuit of happiness"!
I do hope all this is helpful and I welcome additions or corrections. I remain...
SOGLAD
great thread... It was nice to see the images that the FLIR displays.. Now we need to come up with a solution to beat it... From what I understand about how FLIR works is that it uses a beem of infrared light, which bounces off objects and back to the the IR sensor on the camera. So if we can stop the IR from bouncing back it should create a blind spot. There are materials that are transparent to visible light but that are opaque to infrared. A commonly experienced phenomena is when the performance of an infrared sensor degrades or stops functioning altogether when enclosed in a seemingly clear plastic cover. Im not sure how yet but I am sure FLIR can be beat.. I have a friend who is into robot building. Robots use IR to guide them and to detect obsticles.. The last competion he entered they had to find targets and bring them back to base. The people who where hosting the comp managed to hide several targets from the IR sensors. The builders who's robots only used IR sensors couldnt find them, yet they were right out in the open..