Fractures per second are used to quantify visual stimuli. To put it another way, as you look around, your eyes are observing visual cues that move at a set rate, and that rate is known as frames per second.
Think you can see how many frames per second? One can see between 30 and 60 frames per second with the human eye, according to some specialists.
According to some, the human eye cannot really process more than 60 frames per second.
Considering that, you might be perplexed as to why makers of video games continue to create more intricate titles, such as virtual reality titles with incredibly high frame rates. The reason for this is that we might actually be able to see more than we thought.
What Rate of Speed Can the Human Eye See?
Although the rate at which visual inputs are measured is in frames per second, our eyes do not move at a certain rate (fps). Our eyes have a limited capacity for perceiving information at a given rate relative to how quickly the visual stimuli in the environment around us shift.
The consensus among scientists, who have a hard time agreeing on a precise figure, is that most people can perceive between 30 and 60 frames per second. Regarding visual perception, there are two schools of thought.
The ability of the human eye to comprehend visual information at a rate faster than 60 frames per second is a given. According to the opposing school of thought, it might be conceivable for some people to have perception that goes above the pace of 60 frames per second.
How Do Humans Process Reality?
First, it’s important to remember how you’re able to see images in the first place.
▸ Light passes through the cornea at the front of your eye until it hits the lens.
▸ The lens then focuses the light on a point at the very back of your eye in a place called the retina.
▸ Then, photoreceptor cells at the back of your eye turn the light into electrical signals, while the cells known as rods and cones pick up on motion.
▸ The optic nerve carries the electrical signals to your brain, which converts the signals into images.
Reality and Screens
Your eyes and brain receive the visual input as one continuous stream of data when you’re watching a baseball game from the stands or keeping an eye on a child riding a bike down your sidewalk.
However, it’s a little different if you’re viewing a movie on television, watching a YouTube video on your computer, or even playing a video game. We’re used to seeing movies or television shows that are displayed at a 24- to 30-frame-per-second frame rate.
Film-based movies are produced at a 24-frame-per-second rate. In other words, 24 images pass before your eyes in a single second. However, not everything you see will have the same frame rate.
Your home’s computers and televisions probably have a higher “refresh rate,” which alters what you see and how you perceive it. The number of times your monitor updates with fresh images per second is known as the refresh rate.
Your desktop display updates 60 times per second if its refresh rate is the industry-standard 60 Hz. A frame per second is approximately equal to one hertz (Hz).
Your brain processes the light from a computer monitor with a refresh rate of 60 Hz as a single steady stream rather than as a succession of continuously flickering lights. Less flicker typically equates to a greater frequency. According to some studies, the human eye may be able to detect more “flicker rate” than previously believed.
In the past, specialists said that the average individual could detect flicker at a maximum frequency of between 50 and 90 Hz, or at a maximum of about 60 frames per second.
Why is the flicker rate important to understand? If you can distinguish the flicker rate from a continuous stream of light and images, it could be annoying.
What is the Frames Per Second Speed of Movies and Videos?
What is the video content’s frames per second rate? Videos and movies are typically recorded and replayed at a frame rate of 24 to 30 frames per second, however, this is not always the case. The experience of watching a video is distinct from daily life. Think about it.
You and your kids are a young mother and you are in a park. Your eyes take in the entire environment around you as a single stream of information rather than only focusing on the area around your children. While the majority of video is played back at 24 frames per second, far larger amounts can be recorded.
Up to 720 frames per second can be easily captured by even cell phones. People utilize this capability when they want to capture something for delayed viewing at a later time. These are filmed at very high frame rates when you see those incredibly cool slow motion action images.
Why is Flicker Rate Important?
While the majority of video is played back at 24 frames per second, far larger amounts can be recorded. Up to 720 frames per second can be easily captured by even cell phones. People utilize this capability when they want to capture something for delayed viewing at a later time.
These are filmed at very high frame rates when you see those incredibly cool slow motion action images. Imagine the long strip of film and 24 individual images sliding past your eyes every second in a linear fashion.
If we were watching the movie on a projector, this may be quite easy, but instead we utilize technology like computer displays and televisions. The technology increases the speed at which we perceive the video by an additional, let’s say, “dimension.”
Although it might state something like 60 Hz, you can find a precise number by looking at the label on your monitor. Why does this matter?
It speaks about the speed at which your screen refreshes. Imagine that the screen you are viewing online or any video you are watching is truly “refreshing” 60 times per second as you watch the linear playing video pictures.
We have all experienced the frustration of hitting the refresh button and waiting for a web page to load. It’s astounding!
Because of how quickly your screen updates, instead of appearing as brief bursts of light, the information appears to your eyes as a continuous stream. Humans are less able to notice this “flicker” or screen updating at greater frequencies.
How Fast Can Our Brains Register Visual Data?
Do our eyes genuinely “see” each and every image frame at a frame rate of 24 frames per second, as you may be wondering? Even if you didn’t see the “new popcorn” advertisement that was inserted into the movie, your brain will certainly react.
Even if we analyze each single frame unknowingly, tests have demonstrated that we do. In order to determine the shortest amount of time required for the brain to interpret visual stimuli, a study conducted by the Massachusetts Institute of Technology in 2014 delves further into this subject.
You might be taken aback. In just 13 milliseconds, your supercomputer can interpret the visual information contained in a single image. You process information quite quickly. The finding disproves what scientists previously believed to be simply a theory—namely, that our vision peaked at roughly 100 milliseconds.
New research is currently being done to better understand our processing capacities and to mimic how our eyes take in information. The study’s statistics support the claim that most people could not perceive more than 60 frames per second to some extent.
It almost proves that we can detect and distinguish info from images at up to 72 frames per second because it only takes 13 milliseconds each image.
Why Does This Difference Matter?
For security, all sizes of businesses employ surveillance cameras. Thousands of cameras at your neighborhood casino or airport may be involved, or it may just be one camera for the mom-and-pop store down the street.
Surveillance is also used by government and law enforcement organizations for a variety of purposes. Frame rate plays a significant role when working with large amounts of video footage.
It influences the size of the video file and has a significant impact on how you will manage, save, analyze, and safeguard your data. In order to save time, money, and effort, it is crucial to know how many frames per second the human eye can see and select the appropriate frame rate for your films.
How Many Frames Per Second Can AI Process?
This is a challenging question that possibly cannot be fully answered at this time. Nearly every day, artificial intelligence makes significant advancements in its capabilities and is constantly growing.
It would be wonderful to imagine that a human could process three or four photos per minute if they sat down and painstakingly examined a single frame image, examined all the details, and then moved to the next frame.
If an AI system were to perform the same task utilizing deep learning techniques, it could process 15 to 30 frames per second with efficiency. It is almost as fast as the rate at which we process real-time visual data.
A deep learning artificial intelligence system is said to be able to interpret visual data at “the speed of light.” Some systems have proven to be capable of rapidly reading and interpreting up to 50K frames per second. The rates are always increasing.