#hyperacuity

[fieriframes]

[Hyperacuity.]

[cornertheculprit]

sometimes i hate my tendency to try to puzzle out how exactly a fictional mechanic would function irl because i just wanted to make a post about how i think the terrifyingly good gramarye eyesight (that works in tandem with the tension sensing and the focus to let them Perceive—"Their 'power' relies on eyesight combined with exceptional focus.") would affect apollo being abruptly moved from a quiet mountainous area to a metropolitan city with a bajillion people in it as a child (it would suck at first. Badly) but then i started trying to explain WHY it would suck so badly and now i'm knee-deep in articles about neuroscience and psychology and shit like "Variability in human cone topography assessed by adaptive optics scanning laser ophthalmoscopy" in an attempt to somewhat explain a possible way the gramarye power could work. and you know what. fuck it. rough potential explanation of my original point with no elaboration behind it. exceptional visual acuity is where the ability to subconsciously "sense" tension comes from (they See it but they don't consciously register it because of selective filtering—"She wouldn't realize that she was subconsciously detecting this tension...") -> the other known gramaryes in the games were raised in and/or very accustomed to loud chaotic environments (we know jack shit about magnifi's childhood) so they were desensitized to all the visual noise (habituation) in a way that apollo wouldn't have been since he was raised in relative isolation in the mountains -> apollo might not have known how to employ the "focus" part of the power at that point but he had to have been absolutely miserable at first (until he also grew desensitized to it) when you consider his eyesight combined with being thrust into a giant city. his bracelet was probably clamped onto his wrist until he got used to it and was able to tune all the visual noise (People, especially. Everywhere) out. Or something. WHATEVERRRRR

[modmad]

Hello! I think I remember you mentioning you have hyperacuity, and I just wanted to stop by and pass on a recommendation. My cousin is a nightclub promoter and I was talking to her about my own hyperacutiy leading me to carry earplugs everywhere and she recommended Loop earplugs. I bought ones from a different (cheaper) brand that are made the same way and they're the best ones I've ever had. They don't block sounds they just lower the volume, and mine have little extra plugs that can further lower the volume. And, like the actual loop brand, I was able to get pink ones, so when worn no one ever notices unless they see me putting them in or I point them out

ooh! I'll look into those, as it is I have some very soft ones that I use in dire situations which work surprisingly well (and were very cheap!) but if I need a replacement in the future I'll check these out

[ficoandleo]

Ayame spies the tiny cat with headphones quivering in a corner and immediately frowns; she'd heard of some of the other ghouls becoming cats, and this was clearly Leo, right? "Leo-kun? That's you, right?" She keeps her voice low-he already had hyperacuity as a human, she can't imagine how bad it is right now. "If it's okay, I'm gonna pick you up."

She cautiously lifts Leo into her arms, holding him against her chest and wrapping her cardigan over him; it's not much for noise cancellation, but she hopes it'll help him at least a little. Some part of her brain says she can use this for blackmail later, but he looks so uncomfortable she can't possibly imagine using this against him. She pets him gingerly, "shh, it's okay, I'll take you away from all these loud noises...."

@ayamekishiwagi

In his traveling he'd managed to stay out long enough that people had started moving around campus more. More people, more cars, more anomalies, more noise--hours of this was giving him a migraine. He was going to kill whoever did this to him. Curling up in a shady corner with his little paws pressed against his ears was the most peace he'd felt all day. He should've just stayed in his room. Maybe climbed into his nice fluffy pillows to muffle all the noise. . . . Frankly he was hoping no one noticed him. Someone worrying over him would be so loud. . . .

Hearing her soft and muffled voice he let out a little squeak of acknowledgement. Even his own voice was loud. He doesn't fight against being scooped and presses his head against her hand to try and help muffle the noise. Being covered up helped the headache a bit even if it didn't do much for the sound. . . .

It smelled like her. Like the times he'd leaned on her shoulder and held her hand to intensify his stigma. The familiarity helped mentally, if nothing else, and his fur settled a little bit. He was shaking, but hopefully once they got somewhere a little quieter. . . .

[stilldoingapplescience]

In regards to Him's brain damage symptoms-It varies from day to day in terms of severity and includes:

- Temporary mutism

- Lapses in memory

- Dyscalculia

- Cluster headaches

- Lethargy

- Hyperacuity

- Vision/hearing loss

- Mood swings

- Visual/Audio Hallucinations

It should be noted that at no point has it actually affected his intelligence in any meaningful way. He might struggle to express it, but this man is still the shrewd quantum physicist who once deliberately designed fatal test chambers to impress his crush.

Him: I'm extra doomed bc the experiment that keeps me alive and invulnerable is both the thing repairing my brain AND damaging it! It damages my brain automatically bc the science is not conducive to life, but to keep me functioning as invulnerable it has to fix that damage! Which it then redoes! I will never be free of these symptoms unless I find something that can auto-kill me!

Weschelbalg: plz don't do that babe

Warden: plz do babe

[chantssecrets]

"What you think is madness is just hyperacuity of the senses!!"

“Why do you stay in prison when the door is so wide open?” Rumi

“Delilik sandığınız şey, sadece duyuların fazla

keskinleşmesidir!!.”

[theydigthecape]

every day i am

poisoned anew.

footsteps in the kitchen.

pounding at the door.

an engine starts, men shout in the street, music that is not mine

comes in through the window and stays.

i know how stupid this sounds

from the outside.

i hear the echo of my idiocy inside where the music

lingers, uninvited.

sound brings with it

into my head something intrusive

cracks wide my brittle lines, wedges me open

the world walks through me.

if i am very still

maybe it will grow bored

and walk back out.

[appliancesreviews]

Overview of 8K AI Upscaling Technology

Experts have not yet finished arguing about the prospects for 4K TVs, but companies are already actively offering 8K models. Basically, skeptics of this trend use two fairly convincing arguments.

Introduction

First, many have not forgotten the relatively recent history of 3D TVs. The rapid growth of its popularity began after a demonstration at CES and IFA in 2010. Many experts quite logically predicted its excellent prospects. Unfortunately, the high cost of producing 3D content has become an insurmountable obstacle to its further development. As a result, almost all companies abandoned 3D support in their TVs. The second argument is based on the eye capabilities. Unfortunately, its maximum sharpness is significantly inferior, for example, to eagle vision. Of course, it would never occur to anyone to watch a 75-inch TV from a distance of, for example, up to 1 meter. But at a more adequate distance, the sharpness of our vision does not allow us to distinguish individual pixels smaller than a certain size. That is, vision does not perceive the difference between, for example, Full HD and 4K TVs with the same screen size. Perhaps the owners of a falcon or an eagle will be able to please their pets with a high-quality image, but they themselves will not see the difference. But these arguments have counterarguments. For example, companies are actively improving 8K AI upscaling technology.

At a minimum, 8K TVs with AI upscaling will provide better quality playback of lower resolution content. In addition, the results of experiments open up some new aspects. In particular, South Korean scientists have studied the effect of vernier acuity (hyperacuity) to image formation by our brain. Their results allowed scientists to hypothesize that the brain is less tired when perceiving content with high resolution. At the same time, it watching provides richer emotions due to high realism of the perceived content.

Resolution

Of course, any TV provides maximum playback quality for corresponding native content in pixel-to-pixel mode. Unfortunately, the real situation on the market is often different from the ideal. For example, the capabilities of modern TVs often significantly exceed the resolution of the content offered. But sometimes devices, on the contrary, do not support content resolution. Of course, companies solve this problem. Modern algorithms use several basic technologies. The simplest of them increases the image resolution, replacing each pixel with four copies of it. Bilinear interpolation is more efficient. These algorithms compare the missing pixel with the two nearest ones, forming a linear gradient to sharpen the image.

Even more efficient bicubic interpolation uses 16 closest points in all directions, increasing color accuracy. Unfortunately, it often provokes a halo effect.

Main methods

A list of the most popular modern methods includes supersampling, checkerboard rendering and upscaling. Supersampling is a spatial anti-aliasing method for removing the aliasing in the rendered images. In fact, it first renders the image in 4K, and then displays it in 1080p resolution. As a result, the detail of the final image increases. Of course, rendering requires sufficient processing power. The Insects screenshot from Microsoft on Full HD TV demonstrates this effect.

Checkerboard Rendering reduces computing power requirements. In particular, it removes every second pixel and forms an image from the rest. The diagrams show the differences between Standard Rendering and Checkerboard Rendering.

Removing pixels slightly reduces the image resolution, but significantly reduces the amount of computation. In fact, upscaling only resizes while maintaining its proportions. It can be considered the simplest method of converting image resolution. In this case, the TV processor forms additional pixels, providing the required resolution. Accordingly, the final image is a set of new averaged pixels.

Unfortunately, the final image comparison demonstrates a significant decrease in quality compared to native content.

Upscaling

A few years ago, Samsung was the first to use the marketing term UHD Upscaling. Strictly speaking, almost any smartphone or computer has long supported this feature. Of course, its quality directly depends on the content. For example, the quality of SD - UHD Upscaling is significantly lower compared to Full HD - UHD Upscaling due to the insufficient number of pixels in the original image. The picture illustrates the difference in quality between SD / HD / Full HD - 4K Upscaling.

But its visualization is almost disappearing for Full HD. The first 4K TVs did not have an AI processor and simply scaled the image to the entire screen area using traditional interpolation and increasing the pixels size. Unfortunately, bilinear interpolation provides a fairly low quality due to loss of information, reduced detail, blurring outlines of objects, noise, etc. Moreover, mutual influence complicates their elimination. For example, sharpening increases noise, and conversely, reducing noise reduces detail. But companies have improved technology by developing AI Upscaling. Using a powerful high-performance processor radically improved upscaling quality. Today, almost all leaders use 8K AI Upscaling technology under different names. But, of course, they all use the same principles. Samsung is one of the leaders in the development of this technology. The company uses the powerful 8K Quantum processor, optimized for neural networks and AI processing. Samsung's MLSR (Machine Learning Super Resolution) technology uses machine learning, object recognition algorithms, and software filters.

Samsung AI Upscaling

Simplified, this technology uses a constantly updated database of the images pairs in high and low resolution. It's formed as follows. The system selects an 8K image and lowers its resolution, adding noise and reducing the clarity of outlines. In addition, it performs several compression/decompression cycles with different quality levels to add characteristic artifacts. Generated images pairs of different quality are divided into classes, processed by algorithms based on neural networks and stored in a database. Subsequently, the processor analyzes the low-resolution image, finds the corresponding algorithm in the database with filters, and replaces it with an 8K pattern. In fact, the 8K AI Upscaling technology generates an image by analogy with the creation of Frankenstein from 8K patterns in the database. During processing, AI analyzes image fragments up to 60 times per second, correcting saturation, detail and white balance. CPU uses code lines of patterns base for localization of processing fragments. Such an algorithm increases the recognition accuracy of displayed objects. As a result, the processor almost accurately distinguishes, for example, the sky from its reflection in the windows. Moreover, the technology works quite well even with streaming video. But cloud computing for such content is not possible. Previously, AI machine learning used a formula bank, which is downloaded to the TV and updated periodically. But new Samsung Q950TS supports innovative Deep Learning using a neural network to expand machine learning. In fact, it creates its own formulas and algorithms, using processor-integrated basic training coefficients. Of course, Deep Learning has become a quality leap in AI processing. It is performed on a per-pixel basis with the use of noise reduction, restoration of contours, texture creation and restoration of small details. Deep Learning is primarily intended for small details and complex images.

Sony and LG 8K AI Upscaling

Sony's 8K AI Upscaling use dual database processing.

The first database recognizes compression noise, compares it with the patterns and eliminates artifacts. The second database increases resolution based on patterns. All new LG TVs use AI 8K Upscaling with new powerful α (Alpha) 9 Gen 3 AI processor with AI Deep Learning algorithms. In addition, it supports AI Picture Pro, AI Brightness and AI Sound Pro technologies.

Conclusions

Probably, experts will continue to argue about the reasonable limits of the screen resolution. But in any case, 8K AI upscaling provides improved quality for lower resolution content. In addition, technology has an added bonus. In particular, Deep Learning of neural networks provides continuous quality improvement due to the expansion of patterns base. Theoretically, the quality of 8K AI Upscaling will constantly improve, creating a paradoxical situation when the new TV works worse than the old model. But of course, the price remains one of the main criteria for the consumer when choosing. Today, this difference reaches several thousand dollars. But many consider it inadequately overpriced compared to the quality gain that provides the modern 8K AI Upscaling. Most likely, companies will continue to improve it performance, while lowering prices for 8K models. This video shows the capabilities of the Samsung 8K AI Upscaling Technology. Read the full article

[luisalecto]

first of all I love the games and I adore Tobias! just. such good fun what a lovely character, but this is a bit sad but I can't listen to his games without it hurting; I have hyperacuity and it's like, very hard on me bc your mic gets blown out a lot and the sound quality makes me flinch ;; is there a different mic you can use? or do you have a filter/mic guard possibly?

aaah I'm glad you like my boy ;;

and I'm so sorry to hear that god

the thing is my mic is my headphones' so I'm actually not really sure how to fix this issue :-(

if anyone has suggestions tho I'd love to hear them!

[dianadoppelganger]

if this helps anyone else i found out that having quiet pleasant background noise at all times realllyyy helps with hyperacuity/tinnitus

[modmad]

in the admittedly unlikely event that I get to meet you, are there are do-and-dont's you have? like I know I must never shake your hand, are there any other things?

most of the occasions I've met people at cons nothing has come up as a problem, everyone has been very chill and respectful! but yes you're right that is an unusual one so-

please don't shake my hand, ever. I have EDS and on one very unfortunate occasion someone dislocated one of my fingers. I even wrote a wholeass poem about this.

I have hyperacuity so loud noises and frantic movement can be overwhelming for me, please don't scream!

related to the above, sometimes my brain overloads and I have what is (very basically) a low-level seizure. It does not look like one, I go very pale and spaced out, often cry, and I find it difficult to communicate. it will pass but if that happens I just need to be allowed to excuse myself and preferably find a space that is quiet and unpopulated. This is very rare but it does happen.

all the usual: don't hug me unless I say it's okay (sometimes it is! but hug me gently if I say yes. I am more fragile than I look). Don't be over familiar with me if we are not friends already, and don't be scared of me! I am just an ordinary person. Also some people think I am more clever than I am so please don't be too disappointed if I can't answer all the questions that you have or don't quite meet your expectations :'D

[omgbyte]

Innate frequency-discrimination hyperacuity in Williams-Beuren syndrome mice

Innate frequency-discrimination hyperacuity in Williams-Beuren syndrome mice

Checking if the positioning connection is steady http://www.sciencedirect.com must take a look at the safety of your connection before proceeding.

[marketresearch-articles]

Get knowledge about complete analysis of dystonia drug market to 2028

Dystonia drug market is expected to witness market growth at a rate of 5.40% in the forecast period of 2021 to 2028. Data Bridge Market Research report on dystonia drug market provides analysis and insights regarding the various factors expected to be prevalent throughout the forecast period while providing their impacts on the market’s growth.  The increase in the prevalence of dystonia disorders is escalating the growth of dystonia drug market.

Are you willing to know about dystonia drug market? Then you are in right place. Here you will get information like Market Analysis and Insights of dystonia drug market, dystonia drug market Scope and Market Size, Country Level Analysis, Share Analysis

Download sample report @ https://www.databridgemarketresearch.com/request-a-sample/?dbmr=global-dystonia-drug-market

Type

Age, Body, Causes

 Therapy Type

Physical Therapy, Speech Therapy, Sensory  Manoeuvres

Treatment Type

Medication and Surgery

Mechanism of Class Type

Anticholinergic, Benzodiazepines, Dopaminergic Agents and  Others

Route of Administration

Oral and injectable

End-Users

Hospitals, Homecare, Specialty Clinics, Others

Country

U.S., Canada, Mexico, Peru, Brazil,  Argentina, Rest of South America, Germany, Italy, U.K., France, Spain,  Netherlands, Belgium, Switzerland, Turkey, Russia, Hungary, Lithuania, Austria,  Ireland, Norway, Poland, Rest of Europe, Japan, China, India, South Korea,  Australia, Singapore, Malaysia, Thailand, Indonesia, Philippines, Vietnam,  Rest of Asia Pacific, South Africa, Saudi Arabia, U.A.E, Kuwait, Israel,  Egypt, Rest of Middle East and Africa

Forecast

2028

     Get TOC @ https://www.databridgemarketresearch.com/toc/?dbmr=global-dystonia-drug-market

dystonia drug market report provides details of new recent developments, trade regulations, import export analysis, production analysis, value chain optimization, market share, impact of domestic and localized market players, analyses opportunities in terms of emerging revenue pockets, changes in market regulations, strategic market growth analysis, market size, category market growths, application niches and dominance, product approvals, product launches, geographic expansions, technological innovations in the market. To gain more info on dystonia drug market contact Data Bridge Market Research for an Analyst Brief, our team will help you take an informed market decision to achieve market growth.

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Customization Available : Global Dystonia Drug Market

Data Bridge Market Research is a leader in advanced formative research. We take pride in servicing our existing and new customers with data and analysis that match and suits their goal. The report can be customized to include price trend analysis of target brands understanding the market for additional countries (ask for the list of countries), clinical trial results data, literature review, refurbished market and product base analysis. Market analysis of target competitors can be analyzed from technology-based analysis to market portfolio strategies. We can add as many competitors that you require data about in the format and data style you are looking for. Our team of analysts can also provide you data in crude raw excel files pivot tables (Fact book) or can assist you in creating presentations from the data sets available in the report.

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[somebitofeverything]

#okay so story time#I have hyperacuity#which mostly affects my hearing but sometimes I get very sensitive to light#and one time at uni it kicked in during a lecture#(dark room bright projector screen y'all know how it is)#but I had a thin silk scarf so I wrapped it around my eyes#so I could just about follow the lecture and mostly I just needed to listen#light eventually come up and I keep it on bc hell it's working and nobody noticed even my friend next to me#and then the questions come#and I as my followers will likely know by now#am a nerd and a cheery bugger so all the teachers expected me to answer questions all the time#so the teacher asks a question and looks around before drifting to my face expectantly before bursting into laughter#like#nobody understood at first bc everyone was looking at HER and not me#scarf-face mcdumbass#in the first row#but when they cottoned on it tooks some minutes before the riot stopped so I could explain

[youralreadyinhell]

Callaway's new balls center around items for non-visit players—utilizing visit ball

Callaway's lineup of new balls for 2019 are an update that as convincing as visit played golf balls may be, there are much more golfers who aren't visit players and those golfers could very Callaway's new balls center around items for non-visit players—utilizing visit ballwell need an alternate sort of ball.

That is the reason the organization is appearing three new balls gone for players who will never draw nearer to being in a visit occasion than the exhibition ropes. The lineup incorporates the up and coming age of Supersoft, the well known two-piece low-pressure ball; a curiously large ball went for making propelling shots simpler, Supersoft Magna; and the ERC Soft, another sort of ball that Callaway golf ball R&D manager Dave Bartels calls "a separation ball that isn't your traditional separation ball."

ERC Soft

ERC Soft is effectively the most yearning of the new contributions, Bartels stated: "Imagine a scenario in which we could take every one of the advancements we've grown up to this point and consolidate that with what we're as of now dealing with—how unique might we be able to make a ball at this value point.

Chris Otsen

The distinction in the ERC Soft originates from conveying to the separation classification the two-piece center presented a year ago in the organization's visit demonstrated Chrome Soft balls. That center uses graphene, a one-iota thick nanoparticle in the external center layer to build the distinction in pressure between the external center and the internal center to help full shots dispatch higher with less turn. On the ERC Soft, the graphene-mixed double center is bigger, including a bigger inward center.

"That helped us accomplish delicate pressure with low turn without yielding ball speed," Bartels said. "In parallel to that we've been chipping away at another spread material that is somewhat of a half and half between the regular surlyn and our visit premium urethane material. It's sort of a base Surlyn primary formula where we add two special restrictive fixings to that to expand ballspeed and increment sturdiness.

"Those together truly increment the ball speed and enable us to accomplish some dimension of turn around the green that isn't generally found in separation golf balls."

Bartels said the new "crossover spread" is gone for fulfilling the requirements of most golfers, even on shots around the green where normally balls with a urethane spread have a turn advantage.

"This ball will give a specific dimension of turn that fulfills most of golfers out there," he said. "It truly improves around the green than numerous urethane balls available."

Finishing the ERC Soft's highlights is a three-line arrangement realistic that depends on hyperacuity science and how the eyes center around the general position of an item. "It's experimentally demonstrated that it enables your eyes to adjust the item better when you have three lines in parallel with a specific dispersing and a specific shading arrangement that we've put on this golf ball," Bartels said.

Chris Otsen

Supersoft

The most recent age of Callaway's low-pressure two-piece ball was based on the idea of "do no mischief." The prevalent ball's delicate feel has been its reason for living card alongside its low-turn separation, and Bartels said the golf ball R&D group's solitary test was "to make it longer without changing the general playability."

The new Supersoft highlights overhauled hexagonal dimple design for improved low-turn optimal design. The Supersoft's vibe was kept up through another gentler spread that Bartels said "improves turn around the green and makes the general pressure somewhat milder."

Notwithstanding its standard white and yellow contributions, the new Supersoft line additionally will join four new matte completion hues (red, pink, green and orange).

Chris Otsen

Supersoft Magna

Maybe the most intriguing of the three new balls is the new Supersoft Magna, a larger than average golf ball went for regular players searching for a ball that may improve dispatch and strong contact. The curiously large Magna establishment was presented 25 year prior with the possibility of straighter flight and pardoning, and this cycle brings the delicate feel, low-turn, low-pressure advantages of Supersoft with the visual advantages of a bigger ball. The first Magna was 1.72 creeps in measurement, versus most standard golf balls which are 1.68 creeps in width. (There is no standard on the most extreme size of a golf ball; it just can't be littler than 1.68 inches.) The Supersoft Magna is 1.732 creeps in width.

A bigger ball implies the ball's focal point of gravity would be higher than a standard ball, around .026 crawls on account of a Magna. The more the focal point of gravity of the club at effect is underneath the focal point of gravity of the ball, the more reverse-pivot will be decreased. Less reverse-pivot implies a greater amount of the ball's vitality is coordinated toward pushing ahead than turning. In a word, more separation. A lower focus of gravity likewise can enable the ball to dispatch higher. Obviously, it likewise implies there are diverse streamlined difficulties for Callaway's licensed hexagonal-molded dimples as far as size and example, Bartels said.

"Cross-sectional territory being greater it makes more drag so on the specialized side we truly invested some energy building up the HEX streamlined features to truly relieve and decrease however much as could be expected that additional drag," he said.

The Supersoft Magna is intended to be normal golfer, slower-swinger agreeable with its delicate pressure.

"It's based on a similar skeleton as Supersoft, with amazingly low pressure," Bartels said. "The spread is somewhat thicker on Magna to compensate for the additional size and what both of those things do in blend is they help the ball dispatch higher and with low turn."

Bartels said the intrigue is that the larger than usual ball looks practically like it's teed up in the fairway, which moves trust in normal golfers.

"We were seeing the nature of the shot was better," he said. "A few golfers who don't by and large have strong contact are picking up the ball speed and better dispatch conditions by reaching off the focal point of the club face."

[appliancesreviews]

What TV resolution do we need?

As usual, CES 2020 clearly demonstrated the main focus areas of companies' efforts to improve TVs. In fact, they cover almost all aspects, including design, audio quality, enhanced functionality, etc. But, improving image quality remains one of the main directions. Today, companies solve this problem using a variety of methods, including: - increasing resolution; - increased efficiency of AI 8K Upscaling; - improving color rendering by improving the backlight; - automatic calibration. TCL demonstrated the 8th series with Mini LED backlight Technology and announced its next generation called Vidrian Mini LED.

Today, this Chinese company is confidently leading the way in improving FALD (full-array local dimming) technology. According to many experts, Mini LED backlight or, already, Vidrian Mini LED Technology will be able to closely approximate the color accuracy of LED TVs to OLED technology. In addition, this year, almost all companies introduced new auto-calibration modes. In particular, Sony developed Ambient Optimization, new Samsung TVs use Adaptive Picture, Adaptive Peak Brightness and Adaptive Tone Mapping, LG TVs have Dolby Vision IQ. But an unprecedented number of 8K models from almost all leading companies demonstrates the dominance of the trend of increasing TV resolution.

Introduction

Disputes over the avalanche spread of 4K are still ongoing, but almost all leading companies already offer 8K TVs. Basically, skeptics of this trend use two fairly convincing arguments. First, many have not forgotten the relatively recent history of 3D TVs. The rapid growth of its popularity began after a demonstration at CES and IFA in 2010. Many experts quite logically predicted its excellent prospects. Of course, the manufacturers adequately responded to demand, significantly improving and cheapening this technology in its models. Unfortunately, the high cost of producing 3D content has become an insurmountable obstacle to its further development. As a result, almost all companies abandoned 3D support in their TVs. Therefore, today experts quite reasonably express doubts regarding the prospects for the production of native 8K content, which today is practically absent. Probably for this reason, companies are actively improving 8K AI Upscaling technology. In the worst case, these TVs will be able to improve quality playback of lower resolution content.

Secondly, they quite reasonably ask about the advisability of increasing resolution in terms of eye capabilities. The screen resolution of smartphones confirms these doubts. As known, many modern smartphones already provide 400, 500 ppi and higher. But according to many ophthalmologists, 600 ppi is close to the limit of perception for our vision. Accordingly, a further increase in resolution does not make much sense. In the same time, many companies continue to increase it. Today, the absolute record belongs to the Sony Xperia Z5 with 806 ppi.

This value corresponds to 4K, but does not make sense due to the limited possibilities of our eye. But this argument has some additional aspects.

Vernier acuity (hyperacuity)

As know, standard measure of visual acuity using Snellen eyechart. The argument of skeptics is based on the limitation of visual acuity, which does not distinguish between 8K vs 4K due to too high pixel density. In particular, its lower limit does not exceed 20/20.

But the Japanese NHK broadcaster did some interesting research to find out the effect of resolution on perception. Of course, visual acuity remains a major factor, but it's not the only one. Brain and Vernier acuity (hyperacuity) also significantly affect image perception. For example, many people will be able to distinguish the difference between two pairs of lines, one of which contains perfectly parallel lines, and the second includes lines with an offset of only one pixel. In this case, Vernier acuity will take this displacement as a stepping stone.

But the spacing the pixels on the 8K screen is half vs 4K matrix. Accordingly, reducing the height of the step increases the smoothness of the lines and we perceive the 8K image as clearer. Moreover, the brain reinforces this difference by trying to create a more analog-like image, increasing its realism. Thus, the argument based on only traditional visual acuity is not convincing enough.

Experiment Results

Moreover, recent studies of Dr. YungKyong Park of Ewha Womans University in Seoul further supports this hypothesis. In this experiment, scientists installed side-by-side 65-inch TVs with 4K and 8K resolution, which were calibrated at 500 nits of peak luminance. Of course, all 120 participants in the experiment had the same 20/20 visual acuity and normal color vision. The experiment was conducted at a distance of 9 feet from the displays in a dark room. Content included the 16 images and 3 videos with visuals. As a result, almost all participants in the experiment noted the difference 8K vs 4K displays.

Interestingly, the participants in the experiment noted not increased sharpness or contrast of the image due to higher resolution. According to them, 8K images looked cooler, warmer, more delicious, heavier, etc, which corresponds to sensory perception. In addition, Dr. Kyoung-Min Lee of Seoul National University investigated 8K resolution in terms of its perception by the brain. As known, increasing resolution reduces information loss. Accordingly, the dynamic signal-to-noise ratio increases. As a result, the level of immersive effect also rises. Thus, the brain is less tired when perceiving 8K content. At the same time, watching provides richer emotions due to high realism of the perceived content.

Conclusions

1. In the absence of native 8K content, 8K TVs will be able to improve quality playback of lower resolution content with 8K AI Upscaling technology. 2. Today, the screen of 75" 8K TV provides up to 120 ppi. But according to ophthalmologists, the eye can perceive up to 600 ppi due to Vernier acuity (hyperacuity). In this case, the brain distinguishes images with different detailing even if they are not visualized. Therefore, increasing the TV resolution will be relevant in the coming years. In fact, increasing resolution reduces information loss. Accordingly, the dynamic signal-to-noise ratio increases. As a result, the process requires less brain effort to interpolate the lost data. In other words, the brain is less tired when perceiving content in high resolution. In addition, the level of immersive effect also rises due to high realism of the perceived content. Thus, higher detail reduces the load on the brain, while increasing the immersive effect. 3. Given these factors, increasing ppi of the TV screen by increasing the number of pixels has good prospects and to continue to be one of the main ways to improve image quality. This video demonstrates the capabilities of the 8K AI Upscaling in the Samsung Q950TS 8K at CES 2020. Read the full article