8 ms·
Enhancement of human color vision by breaking the binocular redundancy
- yk 10y agoOn a scale of $.99 mail order "X-Ray" glasses to cyborg, how significant is this?
- vhhuhhfryuhgfh 10y agoSounds like butterfly level vision (4 cones)
- chillingeffect 10y agoSeems like it could be expanded to a total of 6 cones, three per eye? what a time to be alive :)
- jcl 10y agoCuriously, it seems hexachromacy is already within the realm of biological possibility for human females. https://en.wikipedia.org/wiki/Pentachromacy#Animals_that_are_potentially_pentachromats https://en.wikipedia.org/wiki/Pentachromacy#Animals_that_are...
- ConceptJunkie 10y agoI'm holding out for dodecachromacy like the mantis shrimps have. https://en.wikipedia.org/wiki/Mantis_shrimp#Eyes https://en.wikipedia.org/wiki/Mantis_shrimp#Eyes
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- XaspR8d 10y agoI'm not in the field, but I think the cool thing about this is that it's accomplishable with passive components created with straightforward tech (one filter was off-the-shelf). Most hyperspectral/extraspectral visualization tools require complicated active displays. That said, it's pretty similar technology to those color-blindness correction glasses [1] -- just filters that accentuate the distinctions between colors you could already see. From a philosophical perspective, it's probably not going to be emergently perceived as a whole new color "dimension", but rather just an augmentation to your preexisting experience. I do think these kinds of small tools will be a key, but subtle part of AR in the future. I would certainly take a pair myself. I always like wearing polarized sunglasses because you can perceive the extra information of which materials are polarizing or dichroic.
- taneq 10y agoThat's really really cool. I thought it might be related to how glasses for colour-blindness work (eg. http://enchroma.com/technology/ http://enchroma.com/technology/ - just the first one I found) but apparently they just use lenses with a specific transmissive spectrum to let through mostly lower frequency reds and higher frequency greens to improve differentiation. I wonder if you could combine the two to give even more spectral resolution?
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- XaspR8d 10y agoThese filters were already optimized so the sum of their stimuli would match the tristimulus. (So you still perceive the same baseline as normal trichromats but with another asymmetry on top.) By removing a frequency range, you're just losing information and deviating from the standard perception, so I don't think it increase resolution, unless you were proto- or deutero-weak and needed the distinction boost anyway. They do touch on expanding this by splitting all 3 photopigments, but that would be a much more challenging filter to make. I was thinking that an active display could add more resolution by adding some time-dependent dimension to colors. Say, "high" reds/blues/greens would pulse quickly and "low" ones would pulse slowly... sort of a fourier transform aspect going on that could get you some scalar gradability rather than a straight up "left blue" vs "right blue" contrast. It's all really cool though regardless.
- russdill 10y agoI thought that too, after I saw an explanation of the notch filter they use, I was much more impressed with the glasses.
- nikita-leonov 10y agoSo where can I buy one?
- XaspR8d 10y agoHere's filter #1. [1] Filter #2 was custom-made. Not sure if that's orderable in small quantities outside of academia. But you could try to find a filter that fit their "naive approach", which would be simple bandstop (aka "reject" or "notch") filter that blocks approx 450-510nm. Just looking around the same retailer, maybe something between these two ([2] & [3]) might suffice for experimenting? Ideally it would fit that range precisely AND have a rather absolute cutoff. I have no idea if that kind of arbitrary range selection is available to one-off buyers, I'm just a fan of color theory. :P The issue with the naive approach is that it skews the white balance of the results a bit by affecting the M&L cone stimulus as well, but that's a lesser issue for playing around with the idea. [1] - http://www.omegafilters.com/450lp-rapidedge.html http://www.omegafilters.com/450lp-rapidedge.html [2] - http://www.omegafilters.com/products/filters/500rb.html http://www.omegafilters.com/products/filters/500rb.html [3] - http://www.omegafilters.com/products/filters/460-od-0-4-notch.html http://www.omegafilters.com/products/filters/460-od-0-4-notc...
- pbhjpbhj 10y agoCouldn't you achieve the same thing in VR with a camera as long as the camera was sensitive to the full spectrum and the screen could produce the relevant frequencies? Just show the limited colour scheme to each eye? I guess having passive tech is better in a lot of (most) applications.
- rocqua 10y agoI think this is how some 3D projection systems work. They have 2 frequencies for each color, and the glasses filter out one of each frequency. You could then achieve the same thing semi-passively.
- PepeGomez 10y agoI guess it would work with one filter as well.
- dghughes 10y agoIsn't there some trick where you don't consume the usual type of vitamin A but instead only consume one of the other three types of vitamin A? The one that's slightly different and somehow you get night vision? Actually I don't think it was night vision I think maybe it was to see UV light. Maybe I only dreamed this not read about it I tend to do that sometimes. edit: It was vitamin A2 and it was for night vision actual IR not to see in the dark but to see IR light. http://www.popsci.com/article/diy/can-we-hack-our-vision-see-infrared-naked-eye http://www.popsci.com/article/diy/can-we-hack-our-vision-see...
- abandonliberty 10y agoInteresting. Carrots/Vitamin A were credited with the RAF shooting down enemy planes in WWII - Apparently a cover story for radar. http://gizmodo.com/carrots-improve-your-vision-is-a-wwii-lie-1633939494 http://gizmodo.com/carrots-improve-your-vision-is-a-wwii-lie...
- pbhjpbhj 10y agoSo the cover story could have been right in this respect and we could have unwittingly given the Nazis a minor advantage? Weird.
- andai 10y agoThe cover story was a cover story!
- mnw21cam 10y agoOn the other hand, the UK government actually hired people who had had cataract operations, and therefore no longer had a UV-filtering lens in their eyes and could see UV light. Their job was to watch the coastline just in case the Germans tried to signal to collaborators on land using UV light. http://www.komar.org/faq/colorado-cataract-surgery-crystalens/ultra-violet-color-glow/ http://www.komar.org/faq/colorado-cataract-surgery-crystalen...
- derefr 10y agoDoes the result of wearing such a filter match, in differentiable metamers, the type of vision natural human tetrachromats have, or is it different? If a natural tetrachromat wore these glasses, would they then be effectively a pentachromat?
- anigbrowl 10y agoInteresting, I'll have to do some experiments with this. I thought I knew about color from years of working with photoshop and video editing, but working with the pigments and medium of paint is vastly more complex (and satisfying despite the unpredictability). I've wondered about the spectral components I can't see quite a bit, since I like to work outside when the weather is good and some color decisions attract lots of insect interest.
- bitshiffed 10y agoI didn't realize we have so much red-green overlap; like we barely qualify as trichromats. That Cyanistes Caeruleus sensitivity graph is beautiful, even without the fourth cone.
- kmill 10y agoI think that overlap just means we are very sensitive to color variation for radiation around 550nm.
- louprado 10y agoI couldn't help but remark on this. I posted the following comment 418 days ago. I am sure this is a case of simultaneous ideation. 3 points by louprado 418 days ago | parent [-] | on: Life in Technicolor – One month wearing color blin... While many of us are not "color-blind", we are all color challenged. This is because we only have three cone-types, assuming you aren't a tetrachromat. I had a thought experiment: Suppose you breakup visible light into six bands. You then create two filters based on these bands. One filter would pass only bands 1, 3, and 5. The other filter would pass bands 2, 4, and 6. Now suppose you put one filter over your left eye and the other filter over your right. Over time, could you learn to see the world in hexachromatic color ?
- Sunset 10y agoIt should be possible, the brain is capable of interpreting vibrating little bumps on the tongue as "vision" after some training. https://www.scientificamerican.com/article/device-lets-blind-see-with-tongues/ https://www.scientificamerican.com/article/device-lets-blind...
- devdoomari 10y agothe article's about 2011... so when is the product actually coming out? I'm not blind (maybe yet?) but I'd like to have them for some local blind ppl...
- duckingtest 10y agohttp://www.wicab.com/ http://www.wicab.com/
- Darthy 10y agoBy the way, that's exactly how the Dolby 3D system works. You could try this out just with their standard glasses. Maybe you would have to create custom ones with more pronounced frequency differences, though. https://en.wikipedia.org/wiki/Dolby_3D https://en.wikipedia.org/wiki/Dolby_3D
- buschtoens 10y agoJust so I understood correctly: both eyes would see slightly different images and the brain would merge them to one coherent image with "new" colors? How long does it take for the brain to adapt?
- db48x 10y ago"Subjectively, we observed that, by looking at a particular color through both filters simultaneously (e.g. filter 1 over the left eye, filter 2 over the right), a “meta-color” is observed, which appears to be different from the original perceived color and both individual filtered perceived colors. This meta-color is a manifestation of the “extra” effective cone type created by the pair of filters, and demonstrates the increased information relayed to the visual system resulting from the partitioning of the S cone."
- db48x 10y agoAn interesting result, although their design turns white into yellow. On the other hand they do maintain the white balance, which is good.
- amelius 10y agoThis doesn't work when looking at infrared images in the dark: only one eye will be able to focus, and getting a coherent 3d image will be impossible.
- PepeGomez 10y agoI once made glasses that made me see polarization. It made plant leaves look beautiful.
- rocqua 10y agoI came here to suggest this. Great to hear that someone actually tried it and found it to work. Did it take long to get your mind to 'get' it? Did the effect fade? What polarization filters did you use?
- PepeGomez 10y agoMore or less immediately, as far as I can remember. I used polarizers from an old LCD display.
- evanb 10y agoHumans can see polarization without any apparatus, but it requires practice and patience. http://www.polarization.com/haidinger/haidinger.html http://www.polarization.com/haidinger/haidinger.html
- dynofuz 10y agoI already see in slightly two different colors in each eye. One is more of a blueish hue, the other more ruddy. I'm an artist and in color tests, I get the best marks. My friend who's a photographer also has the same condition and excellent color acuity. Anyone else experience this?
- hrnnnnnn 10y agoI often notice this effect when lying in bed with one eye open, and the other closed on the pillow. The closed eye will be bluer, the open redder. My own theory (backed up by nothing but a hunch) is that the closed eye adjusts its white-balance to compensate for the red light coming through the eyelid by becoming bluer.
- andai 10y agoMan.. now I'm not sure if you're right or if we're all mutants. I always forget which eye is which color. I should write it down.
- SomeHacker44 10y agoThis. You can try it on a bright day easily by alternating your open eye, and closing both with hands over them for a while to reset the phenomena. I discovered it decades ago on an extremely bright day where I couldn't keep both eyes open without discomfort.
- bitexploder 10y agoI see more red and more blue in one eye as well. You are not alone. I have asked my optometrists about this over the years and they just shrug, like "that is amusing".
- dec0dedab0de 10y agowhen I was a kid we had one of those big VHS camcorders with a black and white single eye veiew finder. It looked blue through one eye, and grey through the other. I never noticed it anywhere else.
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- speps 10y agoReminds me of this paper I found a few years ago : http://caoxiang.net/papers/chi2012_beyondstereo.pdf http://caoxiang.net/papers/chi2012_beyondstereo.pdf
- addled 10y agoI get that color resolution would be increased, but wouldn't everything viewed get a green/red cast since the amount of blue signal to the eyes is cut in half? You can even see in their sample images that blues become different shades of teal.
- stared 10y agoI used to wear glasses with polarization filters - with a different axis (by 90 deg) for each eye. That way I could see polarization. Though, it was fine for exploration, for longer exposure it was "blinking" and overstimulating.