Stupid Thermal Imaging Tricks
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- Опубліковано 26 лип 2024
- In this episode, the Roswell Flight Test Crew demonstrates the capabilities and limitations of thermal imaging cameras through a series of simple experiments. These reveal that, contrary to depictions on film and television, thermal imaging cannot be used to see through walls. Indeed, even glass windows are opaque to thermal imaging. They also prove that metal containers reflect the thermal properties of their surroundings rather than the temperature of their contents, and that while thermal imaging sees clearly through smoke, it is not able to penetrate fog. The video also explains how thermal imaging addresses the infrared spectrum in much the same way conventional cameras and the human eye perceive the visible light spectrum.
- Наука та технологія
Great explanation of where infrared falls on the visible spectrum. Your demonstration o the door shows it's important to remember this is not x-ray vision. In the technical side, I can see customers using this in a hunting application get confused when their rabbit or deer disappears behind thick brush or a large tree trunk.
I miss my original Mark 1 Eyeball...those were the days
I loved this video, nowhere else could I find a nicely formated educational video on thermal camera's not enough out there +1 👍
Thank you Roswell Flight Test Crew. Our company uses the FLIR Tau2 imager except we rotate it continuously in our camera so that we are able to continuously have a 360 degree thermal image panorama for wide area intrusion detection. Thermal Radar is our product. Thank you for the great explanation. I love sharing your findings with my customers to better inform them about thermal imaging.
Where did you get the rotating piece for the FLIR, do you think it would work for squirrels were there entering the house?
Thank you, this video was very helpful on my thermal imaging physics project :)
What a great video. So much is explained in such a short time. I subscribed.
You are nice people and the video is interesting. Subscribed!
Thankyou! This is great information and I LOVE your humor
Man will i remember that about glass
Great job guys👍🏻 perfect explanation 👍🏻
+Drone Doctor Thank you, Doctor! We always appreciate your support!
Mr. Wizard! You're BACK!!!
I missed you long time.
+TEAMERICA The funny thing is, while we were in the studio shooting this video, the director actually made a specific mention of "Mr. Wizard" -- so I think we've definitely tapped into something here... Thanks for watching!
How does a fire extiguisher with powder work with IR?
Can you effectivly jam IR, visible light and thermal cameras with laser light in the right spectrums?
Lucidity!!! Shame no one let you use your props for the test!!! I was really looking forward to check how they work! lol
PS: thanks so much for the video love the demonstrations! Hope to see you at flitefest 2016! Gladly will be able to be there this year!
Ed
+rifted Tell me about it!
It really helped me in my project.Can you please make a video on camouflage effect to make things invisible please!
This is not a suit that amateurs make of thermal insulation, this is something new: ua-cam.com/video/cmCJc5ri6hw/v-deo.html
After the Burn Notice episode, I want a thermal binocular.
They are friking AWESOME!!!! I absolutely love mine (I also love going on night hikes). I will forwarn you these are definitely not cheap, but for around $2000.00 you can get a pretty darn good one just do your homework and ignore screen resolution (it will be like 1080 screen resolution) but you want the microblometer resolution instead (that's what detects the thermal radiation) your image will only be as good as that resolution. Unfortunately they like to trick you with high screen resolution despite it making no difference as long as it's at or slightly above the microblometer resolution. I/e flir has a 1080p screen but only gets 320 for the microblometer. Moreover check out pulsar there way less money for way better imiging.
thanks for sharing very informative!!!
Great video and music!
Is there a way to detect heat and cold that is in the open air of a room using thermal imaging? I know you can see the heat on solid objects but what could you use to detect a mass of air that is colder or hotter than the surrounding air inside a room? Hope you keep up the cool work! Thanks
Yes, but it's not nearly as visible. When he does the dry ice test and you see the foggy shimmer its actually the cold air being picked up by the thermal. Granted if the temperature is not huge it's very difficult to see, but I have seen farts, car exhaust, dryer vents, ect. It kinda looks like how you see with the naked eye thermal heat waves in the summer.
That was atually quite interesting :D Thanks for that! :)
+DutchRC Adventures You're welcome! Glad you enjoyed it!
do we have a thermal paint that enhances capability of my thermal camera as I place my object (painted) far away from it ?
Yes there is thermal paint, it's designed to reflect space / cold and is aimed at an upward angle or on roofs. It doesn't have to be angled as such but basically acts as a mirror and will reflect the thermal inferred radiation, for example if you aimed it at trees then looked at it it would reflect the trees.
You can use infrared to block camera imaging and facial recognitions in public space where there are CCTV's monitoring the public and in stores too..
Yes and no depends on the inferred spectrum, near inferred (what you are talking about) is so red you almost or if further along can't see it with the naked eye, this is the same technology your TV remote uses (hold your remote up to your camera on your phone for example). Anyway thermal inferred is generally much further along on that spectrum you can see it if it's hot enough (think catalytic heaters for example) but generally it can only be detected via a thermal imaging unit as a regular camera can only see the near inferred spectrum as such near inferred doesn't show up on thermal either.
Cool so thermal imaging works. Thanks.
Do we emit a profile in the UV spectrum and if so do thesame principals apply? Do they make UV cameras?
UV is high energetic radiation and corresponds to very high temperatures therefore human body does not emit UV by itself. (See Wien's Equation)
I was wondering if you know if old tv screens, projection TV's, the big Sheetz of plastic that are inside the images are projected on, would that work to evade this?
Frankly a space blanket can easily block thermal, basically anything that stops the thermal radiation from passing. The issue (if your trying to hide) is that the space blanket will look super out of place itself, granted you wouldn't know there's somebody behind it as long as it's not touching you or the heat source, but it would reflect the surroundings acting like a mirror, moreover if you're outside it and it's angled up it would show up as very cold (just like car windshields do) as it would reflect the coldness of space. So if you were hiding and I looked through the thermal at you I would see an extremely dark square, my own reflection, or whatever is in front of the blanket, glass, ect.
Great video!!
+Bob Stubs Thanks!
I see sometimes on military vehicle give off this mist that conceals them for evading thermal imaging. What are those thermal emitting mist called?
Great video, thanks for sharing. I'm trying to find a sensor that can see past thick hair. Might you know if radio waves, thermal, sonic, or something else will do the trick? Thanks very much.
Bigfoot's not going to let you steal a peek that easily........
Are you trying to see cousin itts real face?
dude, next video on our thermal camouflage
What a great informative video thanks can I use this thermal imaging to see where these squirrels are going in and out of the house, we've done our best to close up everything with metal over the holes would it be feasible to use a Flir, FLIR brand adapter to a cell phone to film this, and then run it real fast and watch for the blazing hot squirrels in the movie, then stop the film and discern where they're getting in?
Can y'all suggest a decent budget infered monocular? Thank you
I notice that pilot videos with UAPs go dark around the object once they switch to thermal. Does this mean it's really cold?
what about plexi-glass? I wanna use it with a heater. And how can green houses work properly when the glass doesnt allow both UV and IR through?
So those reflective insulating material we see on the inside of jackets, if we turned that inside out, theoretically we wouldn't be able to see the jacket because it's reflective?
It would be nice if you guys did a review on the Sparkfun Lepton Flir break out board diy thermal imager. Low pixels at distance may be cool to compare.
+Hoverbot1TV We've been talking to FLIR for a while about flying a Lepton imager, to see whether or not it would be safe and/or practical to use one for FPV, owing to the extremely low resolution. It's something that we're looking at doing at some point in the future, although they (understandably) want to be cautious about suggesting, even by implication, that a piece of their technology be utilized for a task that it isn't well suited for -- especially something like controlling a drone, where there are legitimate safety concerns. However, it is definitely something that is being discussed. Stay tuned.
What’s the detection of thermal look like with acrylic, Lenticular Lens or both materials combined?
Do a video on the different thermal cores available 388. 640 1280 etc.
Thank you very much it's been very informative thank you
You know how in very hot conditions, the heat coming off the ground can make wavy patterns in the air, a type of mirage.
Does that kind of effect happen in thermal imaging as well?
That's why I didn't go with flir, mine sees the different temp of water in a silver can. Anyway I didn't come here to bash flir, I wanted to mention that you never mentioned my favorite part about thermal imaging... You can see through a tarp or plastic garbage bag almost unadulteratedly, theres a slight shimmer of the bag giving off it's thermal radiation but beyond that you can see through it pretty well, the closer and hotter the object on the other side the clearer the image through it, (this also works with very thin clothing). The downside is if your trying to walk you could easily not notice the plastic sheeting. Also a fun fact you can see hot/cold gasses like your dry ice test where you see the slight whisps of the cool air so you'll know who let it rip if you happen to be watching with the thermal. Last but not least despite not seeing through glass (it can't because as you mentioned it sees the surface temperature) if you were to touch the glass on the side away from the thermal for long enough your handprint would eventually bleed through and could be detected, for those who don't understand it's because of heat transfer that warms up the glas in that spot essentially warming it enough that the other side gets warm enough to detect. Beyond that the points you talked about are spot on just figured I would add some info that I had wondered about for many years (until I dropped the multiple grand it cost to purchase one and find out).
If this comment gets idk 20 likes I will post a video showing more fun things utilizing a 720p thermal microblometer (the thermal sensing chip).
Oh and one last fun fact, the original thermal imaging systems required liquid nitrogen to operate and were upwards of $80,000.00 that is until the microblometer was invented as the chip itself is in a vacuum allowing it to detect the thermal inferred radiation / aka heat.
Does rain stop them imaging, or radio frequency
If “thermal vision” does not allow us to se through walls; what does? Is it only good for night vision and seeing through smoke?
Is there any lotion or some kind to put in the skin to block ir?
Hi, will the 1/4" hollow polycarbonate sheets block the thermal spectrum as good as glass does?
Polycarbonate is not very opaque to most wavelengths of infrared, so it would not be a good choice.
Thank you! great and funny explanation ❤😂
The thermal camera used in this demonstration is really good, which one is it ?
Pulsar is much better than flir, so if you want to buy a thermal unit look at the microblometer resolution as the screen itself can be 1080+ but if the microblometer is 120 you will only get a 120 resolution. As the microblometer is in essence what detects the thermal radiation. If you really want the best in a handheld go with trijicon as they have the highest thermal resolution (you will pay very dearly for it) pulsar comes in second at 720p and flir is half that.
Alternatively if your rich you could buy a cooled unit (like the police choppers use) in that case flir is the best but your talking a few hundred thousand dollars at that point.
@@IAM_GhosT1 thank you for the detailed informations, much appreciated.
I am searching for my kitty in and around the I-40 rest area called Gray County Safety rest area in Texas. She was lost there on tge night of Sunday, August 24, 2022, as she ran through the rain in fear. Could I use IRT to check for her in hidden places and through heavy grass and brush? What about in the pipes that go under the freeway? Does it take much training to make good use of this tool?
How do I detect human in the dark that use anti thermal imaging suit?
In most places, the night time temperature is much cooler than a human body so all you have to do is wait. The insane heat our bodies produce will eventually bleed through or the person dies of heat stroke. Either way you win.
Bullets?
Flashlight?
Make a video with a Flir camera "underwater"! Like in a Coral reef, where one may see Fish swim by or in space, ..
Turn off your screen and then you see a video made with a thermal cam under water.
don´t understand, what you mean by that. Are you being sarcastig?
Yes.. sorry. Water is not transparent to these wavelengths therefore it won't work to record a video under water.
I'm not buying that explanation for the two metal cans. It's not the reflected IR that's directly important, it's that they they have low emissivity and therefore don't reveal their temperature. Presumably the cold one is emitting less, but this difference is swamped by what is reflected from the outside.
You should have shown the black nylon trick as well.
can you explain how a mirror would react to thermal imaging will it show a thermal image in reflection will it be just like the containers nothing or like the glass nothing
A mirror will react just like it does normally, except it will be a thermal reflection instead of regular light. When I first got my thermal unit I scared the H*** our of myself when I was looking around my friends house and didn't know he had a wall mirror, I turned to face it in a pitch black room and to my surprise there was this person standing right were I was. Obviously it was just my reflection but this was before I knew about far inferred light radiation.
what significant factor effect to thermal image
If glass blocks thermal, why do lenses work on those thermal hunting scopes?
They're made of germanium, not glass.
@@perdedor3571 Yeah, I soon realized that after I made this statement when I looked up thermal camera lenses.
When creep next door, monitoring me in bathroom by using some thermo device, can survivor sheet block that ? If not, please let me know what can I use to block this kind of stalking.
My flir one can see through opaque polyethylene bags and it is awesome
Who else is here from warzone, wondering why he cant see through windows with thermal?
I thought it was a stupid but, till i shot the window, then looked at all the other windows lol.
Proving to people that it’s not a bug😂😂
Legit same
Glass, like fiber glass and also wood/metal etc can block thermal imaging.
when I was a kid, I tried to glow a matches with optical lens trough a window glass. But it can't. But when the window was open, it works. I understood something was going wrong, but I was to young to understand existence of infrared light.
3:43 i hope you see the message.
Don't?
it says;
wanted todo a live demonstration for you.
but everyone else was afraid
that i'd burn down the studio in the process...
I used this video for my friend who thought they see through glass
They don't need thermal imaging to look through glass, they just need their eye balls.
what about covered glass or plexi glass?
So a solid sheet of glass will block thermal imaging. What about fiberglass (the fluffy kind)?
Next time I'm being chased by cops in their helicopter I just hide in a green house and be safe. Thankyou youtube for making it easier for the criminals to get away 👏🏻👏🏻👏🏻
They can switch to regular though
@@Izakokomarixyzdoes it help?
@@ccls2315 - they can probably switch between thermal, night vision and normal vision
So to hide we need to make a double glazed box we can walk in.............lol
Or if you are garden jumping to get away from the police helicopter that is tracking you by flir, hide in someone's greenhouse and there you have it the great disappearing criminal,ready to rob the next poor sod.
what material is the lens on the camera made of, if regular glass can block infrared waves?
Germanium
KU band and other forms of back scatter can see through most everything, mix with multi spectral you can render an image like that seen in the movies.
+The Tinfoil Tricorn Wow! Can you post a link? I'd love to see it in action and understand how it works!
***** that should help point you in the right direction
Fog does NOT obstruct thermal but Co2 does (dry ice is Co2)
Many hunters use it because of they can see everything in the fog
Fog does obstruct thermal radiation. It's just that fog blocks visible light better than thermal radiation. The video shows the thermal camera sees though the fog much better than visible light camera.
It's possible to detect CO2 with a thermal camera but the effect is much much weaker than the effect from fog.
It would have been interesting to see if the thermal camera could have detected CO2. Usually a special filter is used when detecting CO2 since it's much harder to detect.
Fog can affect thermal, if the fog is thick enough it will limit your range and details of the object you are looking through the fog at as much like a blanket it does absorb some of the heat. The dry ice was more so in the fact that it's giving off cold. I am a hunter and I have a thermal.
How does it go through the glass lens on the front of the thermal camera?
ntme9 ...it isn’t a lens in the sense you would think of a camera. It is the IR sensor which looks like a lens but is actually “seeing “ minute temperature differences in the IR spectrum.
The lens is not glass, but usually germanium, silicon, zinc selenide or combinations thereof.
Yeah, the F-35 for example uses sapphire on the front of its sensors.
Can FLIR infrared see through car rooftops (metal) from above?
No, but it likely will show whether there is any internal heat from the vehicle. It will also show heat around the engine, tailpipe, and even the tires due to friction from moving on roadways.
Does thermal truck scanner can scan throught glass
What will happen if we write a information down in a piece of paper can we see the information in the thermal image??
What kind of material could I use to build a anti-thermal imaging clothing??
Ron Zorro a German company is making a set of camies just for that. the US army uses blends and coatings in bdus back in the 90s. a cheap way uses a couple layers of space blanket with a inch or 2 of light heat dispersing insulation
Does Silicone block IR light?
in this episode, we're gonna show you how you can use thermal imaging to get -some- a head
why does the brown color of dark soda become transparent in FLIR?
So metal hides heat signatures? What types of metal? Can a suit be implemented if made of metal sheeting . Or at min, break up the signature? Thanks.. great video sir.
Mylar space blankets layered under camo fabric seems to work
@@N.E.U.R.O thanks man. And I concur. I got a reflective tent and made it into a hoody type shirt with mesh camo over top and you can't see my shape, least on the type I have.
I’m trying to understand the difference between infrared and thermal sights in BF4...
hi.. what inside the thermal camera which detect thermal structure surround a obstacles..
Allah akbar
so you can basically use glass to make a tank invisible in the night ?
Can an IR filter see through playing cards to give an image of what the cards value is?
Mark McKay not at all
Does a space blanket block thermal?
Can you use thermal to see threw a trailer house wall to detect heat activity?
You can see the studs in the wall but that's about it, it can only see those as they sit against the outside wall and absorb / disapate heat slower. For example if you set up a tent and someone was inside you probably wouldn't notice them unless they were putting out a lot of heat (enough to heat the walls).
Can FLIR infrared see through roofs of houses from above?
They can not. They can see where your heat is escaping from the house.
How do I make one from scratch at home that works?
H20 barrier, nice video.
+Jason Parker We didn't cover this fact in this video, but the surface of water -- like a lake or a river -- actually acts like a mirror when you point a thermal imaging camera at it: you can even see reflections of the clouds in the sky overhead, for example. So, yes, H20 is a very effective barrier to thermal imaging. Thanks for watching!
*Why was ironbow not talked about?*
I want to know if you can catch CO2 with an IR camera but not, say, NO2, because CO2 is a greenhouse gas (thus can absorb and reemit IR) but NO2 isn't?
And what about hot CO2 and NO2? Do they look different at the same temperature because of the greenhouse gas property?
CO2 you can definitely see if you have the correct camera.
Amazing! What would happen if you put also white electric tape in the hot and cold can experiment???
It would still show that one was hot and one was room temperature, depending on what pallet setting do you have your thermal imaging device set to.
There would be no difference, as the thermal wouldn't determine different colors so white black ect would look the same, now there's one thing that would change this being exposed to sunlight. Obviously the different colors would absorb different amounts of heat from the sun and in turn would give off different temperatures accordingly. If using white or black hot (my unit only has those options) it would show up with almost all no difference for the white tape and would show up as hotter for the black tape. Moreover different types would react differently as the material would absorb the temperature differently.
Can not understand: If a metal can reflects the thermal emission back inside, and the thermal camera can not see any difference, why then the outer surfaces of the cans are HOT and COLD when touching them?
If its surface is hot then it should illuminate like the phisical Black Body. So, there is some gap in my understanding.
The tape attached to the cans - illuminates IR, but the hot metall surface does not illuminates IR - why?
Incandescent bulb when red-hot illuminates in visible red even yellow color and we see it bare eyes, but why the thermal camers can not see InfraRed when it is warm, not hot???
If we heat up the can to Red-hot it will be red illuminating, isn't it?
how do objects(wood, paper, plastic) look like inside of juice bottle using thermal camera
Why does glass make you invisible? Could you do the same with a piece of cloth impregnated with glass dust?
If I'm ever getting persecuted I'll remember to carry my glass
Is there anyway to see in a snow storm.. through a white out
Can thermal see through plexiglass?
very good
What is the cheapest way to hide, they spy inside my house all the time, how many walls can this camera see through?
Try it with steam and why did you not do the experiment with the more accurate setting. The colored one
Does your head always wobble when you talk?
Terahertz camera's could see thought thin walls and some materials.
How can you eliminate glare?
How I can make a Poncho Man ... A coat to wear AND aboid the thermal image ???
you seem to have the equipment needed to proove my theory to unify gravity.
would you be interested in dooing a little experiment.
find the limit of a materials ability to allow infrared light through. by density of the mass.