[ Reading time : 5 minutes | Date : 6, February 2023 | Author : Craig Tucker ]

Visual stimuli are measured in frames per second. In other words, while you’re searching around, your eyes are viewing visible cues that circulate at a certain rate, and that fps is known as frames per second in 2023.

How many frames per second do you observed you could see?

Some specialists will inform you that the human eye can see among 30 and 60 frames per second. Some keep that it’s not absolutely viable for the human eye to perceive extra than 60 frames per second.

That may make you surprise why online game developers are making an increasing complicated games, which include digital truth games, with a far better frame rate. That’s because we may also genuinely be capable of see more than we realized.

How our Brains 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
When you’re watching a baseball game from the stands, or you’re keeping an eye on a child riding a bike down your sidewalk, your eyes — and your brain — are processing the visual input as one continual stream of information.

But if you’re watching a movie on the television, catching a YouTube video on your computer or even playing a video game, it’s a little different.

We are fairly accustomed to watching videos or shows that are played at a 24- to 30-frames-per-second rate. Movies shot on film are shot at a 24-frame-per-second rate. That means that 24 images flash past your eyes every single second.

But not everything that you see will have that same frames per second rate.

Televisions and computers in your home likely have a faster “refresh rate” that affects what you’re seeing and how you’re seeing it. The refresh rate is the number of times that your monitor updates with new images each second.

If your desktop monitor’s refresh rate is 60 Hz — which is standard — that means it updates 60 times per second. One frame per second is roughly equivalent to 1 Hz.

When you’re using a computer monitor with a refresh rate of 60 Hz, your brain processes the light from the monitor as one steady stream, rather than a series of constant flickering lights. A higher frequency usually means less flicker.

Some research suggests that the human eye may be able to detect higher levels of what’s called “flicker rate” than previously thought.

In the past, experts maintained that most people’s maximum ability to detect flicker ranged between 50 and 90 Hz, or that the maximum number of frames per second that a person could see topped out around 60.

Why do you need to know about flicker rate? It may be distracting if you can perceive the flicker rate, rather than one continual stream of light and images.

So, how many FPS can the human eye see?

You may wonder what happens if you’re watching something with a really high FPS rate. Are you actually seeing all those frames that flash by? After all, your eye doesn’t move as fast as 30 motions per second.

The short answer is that you may not be able to consciously register those frames, but your eyes and brain may be aware of them.

For example, take the 60-frames-per-second rate that many have accepted as the uppermost limit.

Some research suggests that your brain might actually be able to identify images that you see for a much shorter period of time than experts thought.

For example, the authors of a 2014 study out of the Massachusetts Institute of Technology found that the brain can process an image that your eye sees for only 13 milliseconds — a very rapid processing speed.

That’s especially rapid when compared with the accepted 100 milliseconds that appears in earlier studies. Thirteen milliseconds translate into about 75 frames per second.

Is there a human eye FPS test?

Some researchers show rapid sequences of images to a person and ask for responses to see what they were able to detect.

That’s what the researchers in the 2014 study did to determine that the brain can process an image that your eye only saw for 13 milliseconds.

An ophthalmologist can examine the movements inside your eye, known as intraocular movements, with high-speed cinematography, to learn more about how rapidly your eyes are operating.

These days, smartphones are even able to capture those subtle movements using slow-motion video. This technology allows the phone to record more images in a shorter amount of time.

As technology evolves, experts may continue to develop new ways to gauge what the eye is capable of seeing.

How our vision compares to that of animals?

You may have heard people claim that animals see better than humans. Turns out, that’s not actually true — human visual acuity is actually better than that of many animals, especially small animals.

So, you don’t need to assume that your housecat is actually seeing more frames per second than you are. You can probably see details much better than your cat, your dog, or your goldfish, in fact.

However, there are a few types of animals with very good visual acuity that’s even better than ours. This includes some birds of prey, who can see as many as 140 frames per second.

Takeaway

Your eyes and your brain are doing a lot of work to process images — more than you may realize.

You may not be thinking about how many frames per second your eyes can see, but your brain is using all the visual cues it can to help you make decisions.

As scientists continue to explore, we may learn more about what our eyes and our brains are capable of seeing — and understanding.

Some experts will tell you that the human eye can see between 30 and 60 frames per second. Some maintain that it's not really possible for the human eye to perceive more than 60 frames per second.

What rate of speed can the human eye see?

Our eyes aren’t moving at a specific speed, but the way visual stimuli are measured is in frames per second (fps). The visual cues in the world around us move at a particular rate, and our eyes can take in this information at a specific pace of perception. Most experts have a tough time agreeing on an exact number, but the conclusion is that most humans can see at a rate of 30 to 60 frames per second.

There are two schools of thought on visual perception. One is absolute that the human eye cannot process visual data any faster than 60 frames per second. The other school of thought is that it may be possible for some individuals to have some additional perception beyond the rate of 60 frames per second.

How do humans process reality?

Suppose we are going to consider the rate of speed that humans can process information visually. In that case, we may want to take a moment and break down the processes of how human beings receive, evaluate, and interpret data from their environment. We are much like a living computer. Our brains or RAM help us process data from our environment. We have several intake sources for data, such as our skin and eyes. This is how you feed information to our memory core. It is similar to using a flash drive to load data to your computer. So how does this work?

Step 1: We open our eyes, our input devices, and light then passes through the cornea onto the lens.

Step 2: The lens works much like a mirror focusing the light onto the back of the eye, our internal monitor, or screen. This area is called the retina.

Step 3: The photoreceptor cells in the back of your eye convert the light energy into electrical signals. This is similar to data being converted to 1s and 0s in your computer system. Other cells, called rods and cones, pick up motion or movement.

The optic nerve carries the electrical signals to your brain feeding it information; you can compare this to being connected to the internet and your cable providing 1s and 0s of data to your computer, which is interpreted then displayed on your monitor.

What is the frames per second speed of movies and videos?

What is the frames per second speed of video content? Most, certainly not all, videos and movies are filmed and replayed at a rate of 24 to 30 frames per second. Watching a video is different from everyday reality. Imagine this. You are a young mother at a park with your children. Your eyes don’t merely see a specifically defined area around your children; they take in the entire world around you as one stream of data.

While most video is played back at 24 frames per second, they can be recorded in much higher numbers. Even cell phones can easily record up to 720 frames per second. This is a feature that people use when recording something that they want to use for slow playback later. When you see those very cool slow motion action shots, these are filmed at very high frame per second speeds.

FAQ

Can the human eye see 120fps?

Most experts have a tough time agreeing on an exact number, but the conclusion is that most humans can see at a rate of 30 to 60 frames per second. There are two schools of thought on visual perception. One is absolute that the human eye cannot process visual data any faster than 60 frames per second.

Can the human eye see 144 fps?

Human eyes cannot see things beyond 60Hz. So why are the 120Hz/144Hz monitors better? The brain, not the eye, does the seeing. The eye transmits information to the brain, but some characteristics of the signal are lost or altered in the process

How much FPS can you actually see?

60 frames per second
There is not an agreed-upon limit to how many FPS the eye can see. Experts continually go back and forth, but it has been concluded that most people can see 30 – 60 frames per second. Some scientists believe it could be even more for some.

Do humans see in 4K?

This is all worth remembering as televisions with even higher pixel counts come to market. So yes, despite the rumors you may have heard floating around, the human eye is capable of seeing the difference between a 1080p screen and a 4K screen.

How many fps is a movie?

24fps
Motion pictures, TV broadcasts, streaming video content, and even smartphones use the standard frame rate of 24fps.