12 Days of Thermal Riddles - Page 1
Forum section: electronics / general

author: Vipitis
author_rank: Frequent Contributor
timestamp: December 10, 2017, 11:31:40 pm
content: Hey everybody!I thought about bringing some fun into this forum so my idea was to post a little something. My idea is to post a picture for the coming 12 days up to Christmas Eve. Those pictures will be thermal pictures that I took, using various locations, targets, palettes, settings and processing to make them look nothing like a normal thermal image - but still visually pleasing.And then everybody is invited to guess the subject! I will reveal the answer with the post for next day.If anyone has any more ideas or want to contribute by themselves, feel free to post a reply!Only rule I would set is that it has to be an image you took, or an image in which production you were involved with.Anything is allowed, MSX, Visual, overlayed, picture in picture, flipping, stiching or even video/gifs. But must be mainly a thermal images done by S-/M-/LWIR or some special hyperspectral imaging system.I don't think there will be a prize for guessing correctly, and I will not spoil it if someone has the correct guess to keep others the fun.I will start on the 12 and will post every day through the 24th. I try to post as early as possible for my timezone (CET) .

author: Ultrapurple
author_rank: Super Contributor
timestamp: December 11, 2017, 09:08:17 am
content: Sounds like fun!

author: Vipitis
author_rank: Frequent Contributor
timestamp: December 11, 2017, 11:01:51 pm
content: let's start low key: 1/12

author: Cerebus
author_rank: Super Contributor
timestamp: December 12, 2017, 02:22:35 am
content: Five freshly made snowballs sitting on the snow.

author: Ultrapurple
author_rank: Super Contributor
timestamp: December 12, 2017, 03:04:21 am
content: Fiveparticularly warmfreshly made snowballs...?Or maybe a cuboid with a total of 21 spots distributed over its faces.

author: frenky
author_rank: Unknown
timestamp: December 12, 2017, 07:44:51 am
content: There are round waves around hot dots.

author: Raj
author_rank: Frequent Contributor
timestamp: December 12, 2017, 03:53:58 pm
content: A white or bright colored dice with black dots

author: Vipitis
author_rank: Frequent Contributor
timestamp: December 12, 2017, 10:59:26 pm
content: There were ideas in different directions. But the clue to the solution was in the noisy background. A classmate actually solved it without any help. Maybe because he knows these and saw them already.It is a sewer grate, close up. Shot in Thermal Camera + with superresolution on medium and nearest neighbor upscaling. Using the rainbow palette. Not calibrated in anyway. It was a snowy day and the sewer was warm from below. I took a few pictures but only this one made it interesting and mysterious.I will attach a visible image of an MSX I took from a little further so you can understand it.

author: Vipitis
author_rank: Frequent Contributor
timestamp: December 12, 2017, 11:00:50 pm
content: Here comes the next one2/12Edit: had to modify and reupload this one flipped because I put up a radiometric jpeg with embedded visual originally

author: metrologist
author_rank: Super Contributor
timestamp: December 12, 2017, 11:04:50 pm
content: dismembered eyeball

author: KNSSoftware
author_rank: Regular Contributor
timestamp: December 12, 2017, 11:13:23 pm
content: tea cup and saucer

author: Ultrapurple
author_rank: Super Contributor
timestamp: December 13, 2017, 10:45:35 am
content: Looking down into a drinking glass?

author: Raj
author_rank: Frequent Contributor
timestamp: December 13, 2017, 03:27:40 pm
content: door peephole

author: capt bullshot
author_rank: Super Contributor
timestamp: December 13, 2017, 05:01:07 pm
content: A thermostat on a radiator

author: T3sl4co1l
author_rank: Super Contributor
timestamp: December 13, 2017, 09:24:34 pm
content: Shiny doorknob

author: Vipitis
author_rank: Frequent Contributor
timestamp: December 13, 2017, 11:02:30 pm
content: Wow, there are more and more people joining.But i have to agree this was harder then I expected. It looks like a few things and he missing quality of my camera will always be an issue.It's a vacuum cleaner tube, aluminum. Shot into it from very close. Maybe you can see the slid on the one side and then the nobs for the telescope on the opposite site. This might only look familiar to people who used this vacuum.It is a radiometric jepg, captured in Thermal Camera+. The image was been edited in the flir tools app on Android to flip the Iron palette to make it look even stranger and was then flipped in Google photos to create a new jpg, that won't reveal the visual image once downloaded and used in any radiometric software.

author: Vipitis
author_rank: Frequent Contributor
timestamp: December 13, 2017, 11:08:41 pm
content: 3/12I uploaded the wrong one first and removed the earlier reply

author: Neomys Sapiens
author_rank: Super Contributor
timestamp: December 14, 2017, 01:56:08 am
content: Desk lamp with magnifier (Lupenleuchte)?

author: Ultrapurple
author_rank: Super Contributor
timestamp: December 14, 2017, 03:07:34 am
content: It is a reindeer barbecuing a large sack of presents to show naughty children the consequences of their actions.

author: frenky
author_rank: Unknown
timestamp: December 14, 2017, 07:12:26 am
content: It looks like a cat tree to me.

author: capt bullshot
author_rank: Super Contributor
timestamp: December 14, 2017, 08:28:04 am
content: Cat sitting on a cat tree in front of a window, watching outside.

author: joe-c
author_rank: Frequent Contributor
timestamp: December 14, 2017, 09:20:10 am
content: i guess its a 3D Printer (maybe Ultimaker) and the printed Object on the hot Groundplate is a Vase.

author: Raj
author_rank: Frequent Contributor
timestamp: December 14, 2017, 01:06:09 pm
content: Quote from: joe-c on December 14, 2017, 09:20:10 amYup, a 3d printer for sure. I think Joe will take a lead on this game

author: Vipitis
author_rank: Frequent Contributor
timestamp: December 14, 2017, 10:59:30 pm
content: It is my 3D printer after finishing a long print. The model is a vase by Devin Motes at 180% scale.I used the lava palette and scrubbed it really far in flir tools on Android so there is no histrogramm stretching.

author: Vipitis
author_rank: Frequent Contributor
timestamp: December 14, 2017, 11:00:36 pm
content: I didn't find time and motivation to move on to the advanced stuff yet, but that may comes with the weekend.4/12(13?)

author: eliocor
author_rank: Unknown
timestamp: December 14, 2017, 11:40:45 pm
content: Fruit (apple?)

author: capt bullshot
author_rank: Super Contributor
timestamp: December 15, 2017, 07:00:56 am
content: The magic 8 ball

author: frenky
author_rank: Unknown
timestamp: December 15, 2017, 07:46:14 am
content: Christmas ball ornament

author: Rerouter
author_rank: Super Contributor
timestamp: December 15, 2017, 08:02:06 am
content: I'm going to take the obvious one and say an orange, or similar member of the citrus family,

author: Vipitis
author_rank: Frequent Contributor
timestamp: December 16, 2017, 12:07:58 am
content: so, I am late a little.number 4 was a globe, a light up one... but it was really reflective - you can actually see my head(the lower dark spot).

author: Vipitis
author_rank: Frequent Contributor
timestamp: December 16, 2017, 12:21:11 am
content: I am late on this one as well. I had some fun with it... and I will try to find some subjects that are less round...5/13

author: Raj
author_rank: Frequent Contributor
timestamp: December 16, 2017, 08:31:00 am
content: A part of a car dashboard

author: capt bullshot
author_rank: Super Contributor
timestamp: December 16, 2017, 10:28:28 am
content: Insulated piping and a pump (part of the central heating boiler)

author: Vipitis
author_rank: Frequent Contributor
timestamp: December 16, 2017, 11:36:35 pm
content: I am getting late again. I had some issues transferring files from my phone to my computer and therefore don't have the nice pictures yet.number 5 was my bicycle bell it is shiny metal and therefore is reflecting the night sky - the brighter spot is a reflection of myself. I used a custom color palette made with palette generator look at the attached screenshot.

author: Vipitis
author_rank: Frequent Contributor
timestamp: December 16, 2017, 11:48:31 pm
content: 6/12 by Ultrapurplebtw post #100

author: Cerebus
author_rank: Super Contributor
timestamp: December 17, 2017, 12:45:58 am
content: Too easy. A "Quality Street" tin with some of the sweets.BTW, to bring it back to electronics momentarily, those make great screening cans for breadboarded circuits. A moment's work to punch a hole for a BNC or whatever.

author: Vipitis
author_rank: Frequent Contributor
timestamp: December 17, 2017, 01:08:43 am
content: Here is a backup 6/12 because the lower resolution makes it harder

author: Vipitis
author_rank: Frequent Contributor
timestamp: December 17, 2017, 11:10:05 pm
content: There was no participation yesterday. But someone got it correct on Instagram. It is a 2by2 extention cord.

author: Vipitis
author_rank: Frequent Contributor
timestamp: December 17, 2017, 11:16:23 pm
content: 7/12I believe this is a good one

author: onesixright
author_rank: Frequent Contributor
timestamp: December 17, 2017, 11:25:58 pm
content: Any change of posting the original (non thermal) image if you have one?Very funny how the imagination takes overRorschach test?

author: Vipitis
author_rank: Frequent Contributor
timestamp: December 18, 2017, 12:22:51 am
content: I can take a visual image of the same subject. This image isn't really taken as a thermal capture, more as a art piece to get a nice effect.I don't usually drop hints but for this low resolution images, it's a trick to scale them down so your brain puts it together better and maybe see a pattern in the noise.It does make a difference to me on a lot of my images and it's an effect I haven't read a paper about yet.

author: Spirit532
author_rank: Frequent Contributor
timestamp: December 18, 2017, 02:50:38 am
content: Quote from: Vipitis on December 18, 2017, 12:22:51 amI've noticed that effect too, and it extends past still images.If I capture something with my high-speed camera at 160x80 resolution and 60 000 fps and blow it up onto a 28" 4K display, it's practically impossible to determine what is in the image(even when moving!), but as soon as it's squeezed down into a tiny thumbnail size, it's much easier to understand.Now to write a paper and get published in a scientific journal.

author: frenky
author_rank: Unknown
timestamp: December 18, 2017, 07:27:43 am
content: To me it looks something between roller coaster metal construction and mushrooms.

author: capt bullshot
author_rank: Super Contributor
timestamp: December 18, 2017, 09:40:23 am
content: Looks like a car in the background and something else in the foreground.

author: Vipitis
author_rank: Frequent Contributor
timestamp: December 18, 2017, 11:11:37 pm
content: It's inside my computer. I got sleeved tubes for water cooling. And you can see some wires in the background.I will put a visual image, just need to remind me

author: Vipitis
author_rank: Frequent Contributor
timestamp: December 18, 2017, 11:15:02 pm
content: 8/12

author: The Soulman
author_rank: Super Contributor
timestamp: December 18, 2017, 11:37:27 pm
content: Ow no, peeing in the snow?

author: T3sl4co1l
author_rank: Super Contributor
timestamp: December 19, 2017, 12:47:27 am
content: That's some warm snow, if so...Tim

author: capt bullshot
author_rank: Super Contributor
timestamp: December 19, 2017, 10:11:14 am
content: A fence in the foreground, some houses in the background, in between - a cow peeing upwards to the sky

author: vinicius.jlantunes
author_rank: Regular Contributor
timestamp: December 19, 2017, 11:00:58 am
content: Maybe it's a bit cold to be someone peeing? But it does look like that for sure!It's very much like it's some liquid being poured, but looking closer I don't think it is the case. There seems to be like a tube coming out with hot liquid (the "pee stream") and a couple coming in from the lower part.I will guess it's a circuit board with some liquid cooling system for whatever chip is under the bright spot. The other small warm spots around are not pee drops but other small chips that also get a bit warm.

author: capt bullshot
author_rank: Super Contributor
timestamp: December 19, 2017, 01:28:14 pm
content: Quote from: vinicius.jlantunes on December 19, 2017, 11:00:58 amYes, now with your description, I'd second that. It's another view inside the PC, looking at the liquid cooler of the CPU, and some warmer spots around probably beeing the inductors and transistors of the power supply.

author: Ultrapurple
author_rank: Super Contributor
timestamp: December 19, 2017, 01:50:26 pm
content: I am finding this quite fascinating because to a certain extent we are seeing ourselves as others may see our hobby.Whilst we may think that a brightly-coloured image very clearly shows an overheating widget, to a layperson it's just an abstract arrangement of pixels. I realise of course this is true for many specialist areas but to me it was revealing that the (high resolution) image of the tin of sweets was spotted immediately, whereas the lower resolution images have been the subject of mystery and debate. So even we can't always interpret results as well as we might like.I'm not quite sure what the moral of this story might be, but it remains interesting.

author: Cerebus
author_rank: Super Contributor
timestamp: December 19, 2017, 04:57:41 pm
content: The tin of sweets was easy becauseThe tin has a characteristic shape.The purple sweets (brazils?) have a characteristic shape.The green sweets have a characteristic shape.It's almost Christmas, and tins of "Quality Street" are a British Christmas staple.:

author: Vipitis
author_rank: Frequent Contributor
timestamp: December 19, 2017, 11:50:38 pm
content: You need to work together and you will find the answer.It is a circuit board from a radio that I repaired for a secret santa present.You can see the freshly soldered antana wire that I held with my hand so it appears warm and the heat spread from soldering it.The red dots in the background are other solder dots that reflect my own body.

author: Vipitis
author_rank: Frequent Contributor
timestamp: December 19, 2017, 11:52:52 pm
content: 9/12

author: tautech
author_rank: Super Contributor
timestamp: December 19, 2017, 11:54:18 pm
content: Easy, spiral wound low energy mains lamp.

author: Spirit532
author_rank: Frequent Contributor
timestamp: December 20, 2017, 12:45:31 am
content: Definitely a CCFL.

author: frenky
author_rank: Unknown
timestamp: December 20, 2017, 06:55:36 am
content: Yes, this one was easy...

author: capt bullshot
author_rank: Super Contributor
timestamp: December 20, 2017, 12:04:07 pm
content: As we say here: Energiesparlampe

author: Ultrapurple
author_rank: Super Contributor
timestamp: December 20, 2017, 01:23:22 pm
content: FromCartoonstock:

author: SeanB
author_rank: Super Contributor
timestamp: December 20, 2017, 05:59:20 pm
content: Phillips tornado, most likely. That fused join there is one of the things that they have over other lamps, plus the more even phosphor distribution.

author: Vipitis
author_rank: Frequent Contributor
timestamp: December 20, 2017, 10:57:58 pm
content: Feels like this was way to easy. But it just looked cool to me. I got some harder ideas for the final.

author: Vipitis
author_rank: Frequent Contributor
timestamp: December 20, 2017, 11:00:02 pm
content: 10/12

author: tautech
author_rank: Super Contributor
timestamp: December 20, 2017, 11:02:19 pm
content: Quote from: Vipitis on December 20, 2017, 11:00:02 pmAdding the attachment could help.

author: Vipitis
author_rank: Frequent Contributor
timestamp: December 20, 2017, 11:04:00 pm
content: Must have been an issue on my end. I edited it back in. Sorry about that.

author: T3sl4co1l
author_rank: Super Contributor
timestamp: December 20, 2017, 11:08:10 pm
content: Flashlight and illuminated spot?Tim

author: Cerebus
author_rank: Super Contributor
timestamp: December 20, 2017, 11:08:32 pm
content: Does anybody know if this forum (SMF) supports any of the variants of a 'spoiler' tag? I wanted to post an answer (which I think is obvious) and didn't want to spoil it for others. Here's a disemvowelled version: t's trch (LD thnk) nd th rflctd bm frm tht trch.

author: Spirit532
author_rank: Frequent Contributor
timestamp: December 21, 2017, 02:09:39 am
content: It's a focusable torch on full power heating up a surface.

author: Ultrapurple
author_rank: Super Contributor
timestamp: December 21, 2017, 02:40:52 am
content: Quote from: Cerebus on December 20, 2017, 11:08:32 pmIlikethat word - a new one to me.

author: capt bullshot
author_rank: Super Contributor
timestamp: December 21, 2017, 09:24:47 am
content: Quote from: Ultrapurple on December 21, 2017, 02:40:52 amThat would be "entvokalisiert" in German ...And for the image: A torch been focused on a spot for a while

author: Cerebus
author_rank: Super Contributor
timestamp: December 21, 2017, 02:17:59 pm
content: Quote from: Ultrapurple on December 21, 2017, 02:40:52 amPicked up from a lass called Theresa who moderates a forum I used to read regularly. She moderates comments by disemvowelling them, that way threads aren't broken, you can't easily read a disemvowelled comment but you can read it if you are determined and really need to read it to get the context of a thread. "Behave yourself or Theresa will disemvowel you."

author: Vipitis
author_rank: Frequent Contributor
timestamp: December 21, 2017, 11:06:16 pm
content: The palette gave it away

author: Vipitis
author_rank: Frequent Contributor
timestamp: December 21, 2017, 11:07:49 pm
content: 11/12 you wanted harder

author: tautech
author_rank: Super Contributor
timestamp: December 21, 2017, 11:40:46 pm
content: Petri dish

author: Cerebus
author_rank: Super Contributor
timestamp: December 21, 2017, 11:49:40 pm
content: A bowl of soup.

author: netchuck
author_rank: Newbie
timestamp: December 22, 2017, 03:45:59 am
content: Quote from: Vipitis on December 21, 2017, 11:07:49 pmA plastic lens filter holder.Sent from my iPhone using Tapatalk

author: Ultrapurple
author_rank: Super Contributor
timestamp: December 22, 2017, 08:12:49 am
content: A cup/mug of coffee (or tea or hot chocolate or hot water or hot milk...) with a confusing custom palette.

author: capt bullshot
author_rank: Super Contributor
timestamp: December 22, 2017, 09:13:03 am
content: A mug of tea or coffee, handle pointing away from the camera.

author: tboy32
author_rank: Unknown
timestamp: December 22, 2017, 10:35:11 am
content: A short candle that has been recently extinguished?

author: Gyro
author_rank: Super Contributor
timestamp: December 22, 2017, 08:38:28 pm
content: Quote from: Cerebus on December 21, 2017, 11:49:40 pm... With a swirl of cream.Either that or something freshly stirred.

author: Vipitis
author_rank: Frequent Contributor
timestamp: December 22, 2017, 11:01:09 pm
content: It's a class of tea with a spoon. I guess that pallette is really useless here and it's locked to yo fade out the surrounding.I like to watch fluid with thermal activity. It's better then tint in water because it never ends.... I wonder how they looks with a 150k research camera with high framerates full HD resolution and high thermal resolution with no noise.

author: Vipitis
author_rank: Frequent Contributor
timestamp: December 22, 2017, 11:02:50 pm
content: 12/12

author: Cerebus
author_rank: Super Contributor
timestamp: December 22, 2017, 11:18:40 pm
content: A Christmas decoration hanging in a window.Thanks for these, it's been fun.

author: T3sl4co1l
author_rank: Super Contributor
timestamp: December 23, 2017, 09:43:47 am
content: Sun dial?Tim

author: capt bullshot
author_rank: Super Contributor
timestamp: December 23, 2017, 10:12:17 am
content: A christmas decoration (star made of straws), on a (rather cold) window. Window because of the reflection of Vipitis taking the image.

author: Vipitis
author_rank: Frequent Contributor
timestamp: December 23, 2017, 11:02:34 pm
content: It's a Christmas decoration on a window. Made with translucent colored paper

author: Vipitis
author_rank: Frequent Contributor
timestamp: December 23, 2017, 11:16:11 pm
content: This concludes this event.I am not really happy with how it turned out. I took more then 300 images in the last two weeks and had my camera always with me.I planned to do more then I did in the end, but I suffered some issues with my device to transfer files from my phone to my computer for post processing an effects.It feels like some images were far to easy while others where to hard. It's difficult to find the balance of a nice riddle which one can solve in 24hours or a group can working together.Some things I planned included: custom pallette, rotating/flipping images, inverting palettes, limiting the Platte range, using different pallette scaling options. Videos, pip, overlays, confusing msx, stacking, stiching, photogrammetry and more. I didn't find the time due to common school and Christmas stress. If I redo this for next year I plan to prepare images and not shoot them on the day before and take them straight outta camera or just minor effects with mobile apps.The target should be thermal phenomena like Amorphophallus titanum or lightning, clouds, meteors and not objects shot in thermal to look good.I sadly failed to make a nice pallette that looks like the visual equivalent with red and white.... But here is me with my Santa hat wishing all of you a merry Christmas!And thanks to everyone for participating.